DQRs for Session: 123454 User:palm1osCompleted: 10-06-2009

Data Quality Reports for Session: 123454 User: palm1os Completed: 10/06/2009

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D001128.1	TWP/MFRSR/C1 - 615 nm channel bad	twpmfrsrC1.b1
D001129.1	TWP/MFRSR/C1 - Data go to zero between 10-11 LST.	twpmfrsrC1.a0, twpmfrsrC1.b1
D010430.6	TWP/MFRSR/C1 - Shadowband misalignment	twpmfrsrC1.a0, twpmfrsrC1.b1
D020208.2	TWP/MFRSR/C1 - Missing Data	twpmfrsrC1.a0, twpmfrsrC1.b1
D070927.3	TWP/MFRSR/C1 - Incorrect Hemispheric and Diffuse data	twpmfrsrC1.a0, twpmfrsrC1.b1, twpmfrsrlangleyC1.c1, twpmfrsrlangplotC1.c1
D090224.2	TWP/MFRSR/C1 - Intermittent shading problem	twpmfrsrC1.a0, twpmfrsrC1.b1, twpmfrsraod1michC1.c1, twpmfrsrlangleyC1.c1, twpmfrsrlangplotC1.c1
D980512.1	TWP/MFRSR/C1 - Calibration Drift	twpmfrsrC1.a0, twpmfrsrC1.b1
D990906.2	TWP/MFRSR/C1 - Reprocess: Metadata error	twpmfrsrC1.a0, twpmfrsrC1.b1
D990912.1	TWP/MFRSR/C1 - Reprocess: Metadata error	twpmfrsrC1.a0, twpmfrsrC1.b1

DQRID : D001128.1

Start Date	Start Time	End Date	End Time
03/30/2000	0000	04/11/2000	2359

Subject:	TWP/MFRSR/C1 - 615 nm channel bad
DataStreams:	twpmfrsrC1.b1
Description:	615 nm channel is bad.
Measurements:	twpmfrsrC1.b1: Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)

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DQRID : D001129.1

Start Date	Start Time	End Date	End Time
06/17/2000	0000	08/12/2000	2359

Subject:	TWP/MFRSR/C1 - Data go to zero between 10-11 LST.
DataStreams:	twpmfrsrC1.a0, twpmfrsrC1.b1
Description:	Data goes to zero between 10-11 LST on many days.
Measurements:	twpmfrsrC1.b1: Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) Hemispheric Irradiance, MFRSR(hemisp_broadband) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5) Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6) Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) twpmfrsrC1.a0: Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw) Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5_raw) Hemispheric Broadband Irradiance(hemisp_broadband_raw) Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw) Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5) Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw) Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Hemispheric Irradiance, MFRSR(hemisp_broadband) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)

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DQRID : D010430.6

Start Date	Start Time	End Date	End Time
01/01/2001	0000	01/01/2001	2359

Subject:	TWP/MFRSR/C1 - Shadowband misalignment
DataStreams:	twpmfrsrC1.a0, twpmfrsrC1.b1
Description:	Slight midday shading problem affecting direct and diffuse only.
Measurements:	twpmfrsrC1.b1: Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6) Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5) Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4) Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2) twpmfrsrC1.a0: Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw) Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw) Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw) Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw)

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DQRID : D020208.2

Start Date	Start Time	End Date	End Time
10/25/1996	1136	10/27/1996	2051
11/01/1996	1216	11/04/1996	1554
11/15/1996	1403	11/18/1996	0758
11/18/1996	2246	11/20/1996	1829
03/16/1997	0300	03/25/1997	0039
03/27/1997	1609	04/01/1997	0711
04/01/1997	2306	04/03/1997	2035
06/04/1997	0618	06/11/1997	0352
07/08/1997	1047	07/21/1997	2126
11/06/1997	0452	11/10/1997	1658
12/17/1997	0759	01/13/1998	0213
01/14/1998	1752	02/07/1998	0328
05/23/1998	1707	05/25/1998	2305
06/22/1998	1236	07/07/1998	2151
08/21/1998	2247	08/27/1998	0708
11/20/1998	0136	11/27/1998	0405
12/13/1998	2124	12/15/1998	0013
01/04/1999	0853	01/06/1999	2034
01/09/1999	0338	01/11/1999	2014
03/12/1999	1413	03/15/1999	0019
03/28/1999	0625	04/01/1999	1552
05/15/1999	0401	05/17/1999	0359
05/24/1999	2124	06/15/1999	0329
08/02/1999	0950	08/05/1999	1044
09/03/1999	0235	09/10/1999	0209
10/01/1999	0830	10/22/1999	1955
05/27/2000	1454	05/29/2000	0501
08/12/2000	1605	08/14/2000	0501
08/22/2000	2326	08/24/2000	0436
09/03/2000	0419	09/08/2000	2112
10/14/2000	0400	10/19/2000	0218
12/02/2000	2218	12/04/2000	0235
12/21/2000	0554	12/23/2000	0013
01/01/2001	0512	01/03/2001	0437
02/17/2001	1357	02/19/2001	0640
03/17/2001	1426	03/20/2001	0455
03/20/2002	0119	03/22/2002	0647
09/26/2002	0036	10/01/2002	0047
10/20/2002	0123	10/30/2002	0330
07/13/2006	1802	09/13/2006	1600

Subject:	TWP/MFRSR/C1 - Missing Data
DataStreams:	twpmfrsrC1.a0, twpmfrsrC1.b1
Description:	Data are missing and unrecoverable.
Measurements:	twpmfrsrC1.b1: Ratio of direct_normal_narrowband_filter1 to diffuse_hemisp_narrowband_filter1(direct_diffuse_ratio_filter1) Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband) Offset subtracted from upwelling hemispheric filter5 data(offset_filter5) Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3) cosine correction, south to north, filter3(cosine_correction_sn_filter3) Normalized filter function data, filter 3, wavelength value obtained during bench calibrations(wavelength_filter3) Offset subtracted from upwelling hemispheric broadband data(offset_broadband) Normalized filter function data, filter 4, wavelength value obtained during bench calibrations(wavelength_filter4) cosine correction, south to north, filter5(cosine_correction_sn_filter5) Normalized filter function data, filter 1, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter1) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Ratio of direct_normal_narrowband_filter2 to diffuse_hemisp_narrowband_filter2(direct_diffuse_ratio_filter2) Azimuth angle(azimuth_angle) Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2) Normalized filter function data, filter 2, wavelength value obtained during bench calibrations(wavelength_filter2) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Normalized filter function data, filter 2, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter2) Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4) cosine correction, south to north, filter4(cosine_correction_sn_filter4) Offset subtracted from upwelling hemispheric filter1 data(offset_filter1) Solar zenith angle(solar_zenith_angle) Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1) Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5) cosine correction, west to east, broadband channel(cosine_correction_we_broadband) Hemispheric Irradiance, MFRSR(hemisp_broadband) Normalized filter function data, filter 1, wavelength value obtained during bench calibrations(wavelength_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Offset subtracted from upwelling hemispheric filter6 data(offset_filter6) Ratio of direct_normal_narrowband_filter6 to diffuse_hemisp_narrowband_filter6(direct_diffuse_ratio_filter6) Normalized filter function data, filter 4, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter4) Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband) Offset subtracted from upwelling hemispheric filter4 data(offset_filter4) Data Logger Supply Voltage(logger_volt) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) cosine correction, south to north, broadband channel(cosine_correction_sn_broadband) Offset subtracted from upwelling hemispheric filter2 data(offset_filter2) Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5) Cosine correction of filter1 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter1) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5) Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3) Normalized filter function data, filter 3, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter3) time(time) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6) lat(lat) Cosine correction applied to direct_horizontal_broadband(computed_cosine_correction_broadband) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2) Offset subtracted from upwelling hemispheric filter3 data(offset_filter3) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) Ratio of direct_normal_narrowband_filter4 to diffuse_hemisp_narrowband_filter4(direct_diffuse_ratio_filter4) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Normalized filter function data, filter 5, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter5) Cosine correction applied to direct_horizontal_narrowband_filter3(computed_cosine_correction_filter3) Cosine correction of filter5 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter5) cosine correction, west to east, filter3(cosine_correction_we_filter3) Dummy altitude for Zeb(alt) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Normalized filter function data, filter 6, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter6) Normalized filter function data, filter 5, wavelength value obtained during bench calibrations(wavelength_filter5) Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2) cosine correction, west to east, filter6(cosine_correction_we_filter6) base time(base_time) Cosine of Solar Zenith Angle(cosine_solar_zenith_angle) Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3) Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband) Cosine correction applied to direct_horizontal_narrowband_filter5(computed_cosine_correction_filter5) Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4) Elevation Angle(elevation_angle) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Air mass(airmass) Ratio of direct_normal_narrowband_filter5 to diffuse_hemisp_narrowband_filter5(direct_diffuse_ratio_filter5) Detector Temperature(head_temp) Ratio of direct_normal_broadband to diffuse_hemisp_broadband(direct_diffuse_ratio_broadband) Logger panel temperature(logger_temp) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Cosine correction applied to direct_horizontal_narrowband_filter2(computed_cosine_correction_filter2) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) cosine correction, west to east, filter2(cosine_correction_we_filter2) Cosine correction of filter6 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter6) Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6) Normalized filter function data, filter 6, wavelength value obtained during bench calibrations(wavelength_filter6) cosine correction, south to north, filter1(cosine_correction_sn_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) cosine correction, west to east, filter1(cosine_correction_we_filter1) Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3) Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5) Cosine correction of filter2 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter2) Cosine correction applied to direct_horizontal_narrowband_filter6(computed_cosine_correction_filter6) Time offset of tweaks from base_time(time_offset) Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6) Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5) lon(lon) Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1) cosine correction, south to north, filter6(cosine_correction_sn_filter6) cosine correction, west to east, filter5(cosine_correction_we_filter5) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) cosine correction, west to east, filter4(cosine_correction_we_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Second Detector Temperature(head_temp2) Cosine correction of filter3 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter3) Cosine correction applied to direct_horizontal_narrowband_filter4(computed_cosine_correction_filter4) angle of incidence during cosine bench measurements(bench_angle) Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1) Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4) Cosine correction of broadband diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_broadband) Cosine correction of filter4 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter4) Cosine correction applied to direct_horizontal_narrowband_filter1(computed_cosine_correction_filter1) cosine correction, south to north, filter2(cosine_correction_sn_filter2) twpmfrsrC1.a0: Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw) lat(lat) Second Detector Temperature(head_temp2) Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Offset subtracted from upwelling hemispheric broadband data(offset_broadband) Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw) Offset subtracted from upwelling hemispheric filter2 data(offset_filter2) Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3) Dummy altitude for Zeb(alt) Time offset of tweaks from base_time(time_offset) Detector Temperature(head_temp) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5) Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Offset subtracted from upwelling hemispheric filter5 data(offset_filter5) Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw) Hemispheric Irradiance, MFRSR(hemisp_broadband) lon(lon) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2) Logger panel temperature(logger_temp) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw) Data Logger Supply Voltage(logger_volt) Offset subtracted from upwelling hemispheric filter6 data(offset_filter6) Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5_raw) Hemispheric Broadband Irradiance(hemisp_broadband_raw) Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw) Offset subtracted from upwelling hemispheric filter3 data(offset_filter3) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Offset subtracted from upwelling hemispheric filter4 data(offset_filter4) Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2) time(time) Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw) base time(base_time) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband) Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1) Offset subtracted from upwelling hemispheric filter1 data(offset_filter1) Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)

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DQRID : D070927.3

Start Date	Start Time	End Date	End Time
11/12/2007	2030	11/15/2007	0800

Subject:	TWP/MFRSR/C1 - Incorrect Hemispheric and Diffuse data
DataStreams:	twpmfrsrC1.a0, twpmfrsrC1.b1, twpmfrsrlangleyC1.c1, twpmfrsrlangplotC1.c1
Description:	The instrument underwent a configuration change. Around this time there was a glitch in the functioning of this instrument resulting in the hemispheric and diffuse data jumping offscale. The problem lasted for about three days. Use no data during the period covered by this DQR.
Measurements:	twpmfrsrlangleyC1.c1: optical depth for the Direct BroadBand(michalsky_optical_depth_broadband) percentage of initial points used in final linear fit for the Direct Narrowband Filter5(barnard_good_fraction_filter5) Langley regression Io, Michalsky, Direct Narrowband Filter4(michalsky_solar_constant_filter4) optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter5(barnard_solar_constant_sdist_filter5) percentage of initial points used in final linear fit for the Direct Narrowband Filter1(michalsky_good_fraction_filter1) percentage of initial points used in final linear fit for the Direct Narrowband Filter4(barnard_good_fraction_filter4) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter4(barnard_solar_constant_sdist_filter4) Langley regression Io, Michalsky, Direct Narrowband Filter3(michalsky_solar_constant_filter3) rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2) optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4) Angstrom exponent(barnard_angstrom_exponent) percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter2(barnard_error_slope_filter2) error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband) standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3) percentage of initial points used in final linear fit for the Direct Narrowband Filter2(michalsky_good_fraction_filter2) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter1(barnard_error_slope_filter1) optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2) error in final linear fit for the Direct Narrowband Filter3(barnard_error_fit_filter3) number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2) Langley regression Io, Michalsky, Direct Narrowband Filter6(michalsky_solar_constant_filter6) standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2) optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5) solar constant corrected for solar distance for the Direct Narrowband Filter6(barnard_solar_constant_sdist_filter6) percentage of initial points used in final linear fit for the Direct Narrowband Filter2(barnard_good_fraction_filter2) percentage of initial points used in final linear fit for the Direct Narrowband Filter3(michalsky_good_fraction_filter3) Langley regression Io, Michalsky, Direct Narrowband Filter1(michalsky_solar_constant_filter1) rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5) standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5) Angstrom exponent(michalsky_angstrom_exponent) optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6) solar constant corrected for solar distance for the Direct Narrowband Filter2(michalsky_solar_constant_sdist_filter2) percentage of initial points used in final linear fit for the Direct Narrowband Filter6(barnard_good_fraction_filter6) optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5) number of points used in final linear fit for the Direct Narrowband Filter1(michalsky_number_points_filter1) percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband) rejection flag for Direct Broadband(barnard_badflag_broadband) standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter1(barnard_solar_constant_sdist_filter1) rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2) rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1) percentage of initial points used in final linear fit for the Direct Narrowband Filter1(barnard_good_fraction_filter1) rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3) optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3) error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6) solar constant corrected for solar distance for the Direct Narrowband Filter5(michalsky_solar_constant_sdist_filter5) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter3(barnard_error_slope_filter3) solar constant corrected for solar distance for the Direct Narrowband Filter6(michalsky_solar_constant_sdist_filter6) percentage of initial points used in final linear fit for the Direct Narrowband Filter3(barnard_good_fraction_filter3) rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter5(barnard_error_slope_filter5) error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter4(barnard_error_slope_filter4) percentage of initial points used in final linear fit for the Direct Narrowband Filter5(michalsky_good_fraction_filter5) number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband) rejection flag for Direct Broadband(michalsky_badflag_broadband) rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3) rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5) standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1) Langley regression Io, adjusted to 1AU, Barnard, Direct BroadBand(barnard_solar_constant_sdist_broadband) number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband) optical depth for the Direct BroadBand(barnard_optical_depth_broadband) number of points used in final linear fit for the Direct Narrowband Filter3(barnard_number_points_filter3) optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4) percentage of initial points used in final linear fit for the Direct Narrowband Filter6(michalsky_good_fraction_filter6) rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4) solar constant corrected for solar distance for the Direct Narrowband Filter1(michalsky_solar_constant_sdist_filter1) standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband) number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter6(barnard_error_slope_filter6) rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1) rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4) number of points used in final linear fit for the Direct Narrowband Filter3(michalsky_number_points_filter3) solar constant corrected for solar distance for the Direct Broadband(michalsky_solar_constant_sdist_broadband) number of points used in final linear fit for the Direct Narrowband Filter4(barnard_number_points_filter4) optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3) number of points used in final linear fit for the Direct Narrowband Filter2(michalsky_number_points_filter2) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter3(barnard_solar_constant_sdist_filter3) error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2) Langley regression Io, Michalsky, Direct Narrowband Filter2(michalsky_solar_constant_filter2) number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5) error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband) standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6) number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6) Langley regression Io, Michalsky, Direct BroadBand(michalsky_solar_constant_broadband) Langley regression Io, Michalsky, Direct Narrowband Filter5(michalsky_solar_constant_filter5) number of points used in final linear fit for the Direct Narrowband Filter4(michalsky_number_points_filter4) optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1) optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1) solar constant corrected for solar distance for the Direct Narrowband Filter4(michalsky_solar_constant_sdist_filter4) error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1) percentage of initial points used in final linear fit for the Direct Narrowband Filter4(michalsky_good_fraction_filter4) solar constant corrected for solar distance for the Direct Narrowband Filter3(michalsky_solar_constant_sdist_filter3) rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter2(barnard_solar_constant_sdist_filter2) number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5) number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1) optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2) error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4) twpmfrsrlangplotC1.c1: rejected points for the final fit for the Direct Narrowband Filter3, Barnard(barnard_rejected_filter3) rejected points for the final fit for the Direct Narrowband Filter5, Michalsky(michalsky_rejected_filter5) rejected points for the final fit for the Direct Narrowband Filter3, Michalsky(michalsky_rejected_filter3) log(irradiance) for the Direct Narrowband Filter2, Michalsky(michalsky_lnI_filter2) log(irradiance) for the Direct Narrowband Filter2, Barnard(barnard_lnI_filter2) log(irradiance) for the Direct Narrowband Filter1, Barnard(barnard_lnI_filter1) log(irradiance) for the Direct Narrowband Filter1, Michalsky(michalsky_lnI_filter1) rejected points for the final fit for the Direct Narrowband Filter2, Michalsky(michalsky_rejected_filter2) log(irradiance) for the Direct Narrowband Filter3, Michalsky(michalsky_lnI_filter3) rejected points for the final fit for the Direct Broadband, Michalsky(michalsky_rejected_broadband) log(irradiance) for the Direct Narrowband Filter4, Michalsky(michalsky_lnI_filter4) rejected points for the final fit for the Direct Narrowband Filter2, Barnard(barnard_rejected_filter2) log(irradiance) for the Direct Narrowband Filter6, Michalsky(michalsky_lnI_filter6) airmass(barnard_airmass) log(irradiance) for the Direct Narrowband Filter6, Barnard(barnard_lnI_filter6) airmass(michalsky_airmass) log(irradiance) for the Direct Narrowband Filter5, Michalsky(michalsky_lnI_filter5) rejected points for the final fit for the Direct Narrowband Filter6, Michalsky(michalsky_rejected_filter6) log(irradiance) for the Direct Broadband, Michalsky(michalsky_lnI_broadband) log(irradiance) for the Direct Narrowband Filter4, Barnard(barnard_lnI_filter4) rejected points for the final fit for the Direct Narrowband Filter1, Barnard(barnard_rejected_filter1) log(irradiance) for the Direct Narrowband Filter3, Barnard(barnard_lnI_filter3) rejected points for the final fit for the Direct Narrowband Filter5, Barnard(barnard_rejected_filter5) log(irradiance) for the Direct Narrowband Filter5, Barnard(barnard_lnI_filter5) rejected points for the final fit for the Direct Narrowband Filter6, Barnard(barnard_rejected_filter6) rejected points for the final fit for the Direct Broadband, Barnard(barnard_rejected_broadband) log(irradiance) for the Direct Broadband, Barnard(barnard_lnI_broadband) rejected points for the final fit for the Direct Narrowband Filter1, Michalsky(michalsky_rejected_filter1) rejected points for the final fit for the Direct Narrowband Filter4, Barnard(barnard_rejected_filter4) rejected points for the final fit for the Direct Narrowband Filter4, Michalsky(michalsky_rejected_filter4) twpmfrsrC1.b1: Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4) Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5) Hemispheric Irradiance, MFRSR(hemisp_broadband) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) twpmfrsrC1.a0: Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw) Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw) Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw) Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw) Hemispheric Irradiance, MFRSR(hemisp_broadband) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2) Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw) Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5_raw) Hemispheric Broadband Irradiance(hemisp_broadband_raw) Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2) Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw) Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1) Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)

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DQRID : D090224.2

Start Date	Start Time	End Date	End Time
07/25/2008	0130	07/25/2008	0630
08/07/2008	2200	08/08/2008	0615
08/19/2008	0230	08/19/2008	0630

Subject:	TWP/MFRSR/C1 - Intermittent shading problem
DataStreams:	twpmfrsrC1.a0, twpmfrsrC1.b1, twpmfrsraod1michC1.c1, twpmfrsrlangleyC1.c1, twpmfrsrlangplotC1.c1
Description:	The instrument experienced intermittent shading issues.
Measurements:	twpmfrsrlangleyC1.c1: percentage of initial points used in final linear fit for the Direct Narrowband Filter5(barnard_good_fraction_filter5) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter4(barnard_solar_constant_sdist_filter4) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter2(barnard_error_slope_filter2) percentage of initial points used in final linear fit for the Direct Narrowband Filter2(michalsky_good_fraction_filter2) standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2) solar constant corrected for solar distance for the Direct Narrowband Filter6(barnard_solar_constant_sdist_filter6) optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6) solar constant corrected for solar distance for the Direct Narrowband Filter2(michalsky_solar_constant_sdist_filter2) Dummy altitude for Zeb(alt) number of points used in final linear fit for the Direct Narrowband Filter1(michalsky_number_points_filter1) rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2) rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3) percentage of initial points used in final linear fit for the Direct Narrowband Filter1(barnard_good_fraction_filter1) solar constant corrected for solar distance for the Direct Narrowband Filter6(michalsky_solar_constant_sdist_filter6) percentage of initial points used in final linear fit for the Direct Narrowband Filter3(barnard_good_fraction_filter3) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter4(barnard_error_slope_filter4) rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5) optical depth for the Direct BroadBand(barnard_optical_depth_broadband) rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4) standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter6(barnard_error_slope_filter6) number of points used in final linear fit for the Direct Narrowband Filter3(michalsky_number_points_filter3) number of points used in final linear fit for the Direct Narrowband Filter4(barnard_number_points_filter4) error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2) standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6) rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter2(barnard_solar_constant_sdist_filter2) number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5) number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1) optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2) error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4) optical depth for the Direct BroadBand(michalsky_optical_depth_broadband) optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6) Langley regression Io, Michalsky, Direct Narrowband Filter3(michalsky_solar_constant_filter3) optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4) percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband) optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2) error in final linear fit for the Direct Narrowband Filter3(barnard_error_fit_filter3) number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2) percentage of initial points used in final linear fit for the Direct Narrowband Filter3(michalsky_good_fraction_filter3) rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5) Langley regression Io, Michalsky, Direct Narrowband Filter1(michalsky_solar_constant_filter1) standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5) Angstrom exponent(michalsky_angstrom_exponent) percentage of initial points used in final linear fit for the Direct Narrowband Filter5(michalsky_good_fraction_filter5) standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1) optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4) base time(base_time) rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1) Time offset of tweaks from base_time(time_offset) error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband) Langley regression Io, Michalsky, Direct BroadBand(michalsky_solar_constant_broadband) Langley regression Io, Michalsky, Direct Narrowband Filter5(michalsky_solar_constant_filter5) optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1) solar constant corrected for solar distance for the Direct Narrowband Filter4(michalsky_solar_constant_sdist_filter4) error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter5(barnard_solar_constant_sdist_filter5) percentage of initial points used in final linear fit for the Direct Narrowband Filter4(barnard_good_fraction_filter4) percentage of initial points used in final linear fit for the Direct Narrowband Filter1(michalsky_good_fraction_filter1) rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2) Angstrom exponent(barnard_angstrom_exponent) standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter1(barnard_error_slope_filter1) percentage of initial points used in final linear fit for the Direct Narrowband Filter2(barnard_good_fraction_filter2) percentage of initial points used in final linear fit for the Direct Narrowband Filter6(barnard_good_fraction_filter6) percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband) optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter1(barnard_solar_constant_sdist_filter1) rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1) solar constant corrected for solar distance for the Direct Narrowband Filter5(michalsky_solar_constant_sdist_filter5) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter3(barnard_error_slope_filter3) error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5) error in optical depth (slope) of final linear fit for the Direct Narrowband Filter5(barnard_error_slope_filter5) number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband) rejection flag for Direct Broadband(michalsky_badflag_broadband) rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3) Langley regression Io, adjusted to 1AU, Barnard, Direct BroadBand(barnard_solar_constant_sdist_broadband) number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband) number of points used in final linear fit for the Direct Narrowband Filter3(barnard_number_points_filter3) lat(lat) solar constant corrected for solar distance for the Direct Narrowband Filter1(michalsky_solar_constant_sdist_filter1) rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4) solar constant corrected for solar distance for the Direct Broadband(michalsky_solar_constant_sdist_broadband) number of points used in final linear fit for the Direct Narrowband Filter2(michalsky_number_points_filter2) Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter3(barnard_solar_constant_sdist_filter3) number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5) number of points used in final linear fit for the Direct Narrowband Filter4(michalsky_number_points_filter4) lon(lon) Langley regression Io, Michalsky, Direct Narrowband Filter4(michalsky_solar_constant_filter4) error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband) Langley regression Io, Michalsky, Direct Narrowband Filter6(michalsky_solar_constant_filter6) optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5) rejection flag for Direct Broadband(barnard_badflag_broadband) standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4) optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3) error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6) rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6) percentage of initial points used in final linear fit for the Direct Narrowband Filter6(michalsky_good_fraction_filter6) number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6) optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3) Langley regression Io, Michalsky, Direct Narrowband Filter2(michalsky_solar_constant_filter2) number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6) optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1) percentage of initial points used in final linear fit for the Direct Narrowband Filter4(michalsky_good_fraction_filter4) solar constant corrected for solar distance for the Direct Narrowband Filter3(michalsky_solar_constant_sdist_filter3) twpmfrsrlangplotC1.c1: rejected points for the final fit for the Direct Narrowband Filter3, Barnard(barnard_rejected_filter3) lon(lon) base time(base_time) rejected points for the final fit for the Direct Broadband, Michalsky(michalsky_rejected_broadband) airmass(barnard_airmass) rejected points for the final fit for the Direct Narrowband Filter1, Barnard(barnard_rejected_filter1) rejected points for the final fit for the Direct Narrowband Filter5, Barnard(barnard_rejected_filter5) lat(lat) rejected points for the final fit for the Direct Narrowband Filter4, Michalsky(michalsky_rejected_filter4) rejected points for the final fit for the Direct Narrowband Filter5, Michalsky(michalsky_rejected_filter5) Dummy altitude for Zeb(alt) log(irradiance) for the Direct Narrowband Filter1, Barnard(barnard_lnI_filter1) log(irradiance) for the Direct Narrowband Filter1, Michalsky(michalsky_lnI_filter1) rejected points for the final fit for the Direct Narrowband Filter2, Michalsky(michalsky_rejected_filter2) log(irradiance) for the Direct Narrowband Filter3, Michalsky(michalsky_lnI_filter3) rejected points for the final fit for the Direct Narrowband Filter2, Barnard(barnard_rejected_filter2) Time offset of tweaks from base_time(time_offset) log(irradiance) for the Direct Narrowband Filter3, Barnard(barnard_lnI_filter3) log(irradiance) for the Direct Narrowband Filter5, Barnard(barnard_lnI_filter5) log(irradiance) for the Direct Narrowband Filter6, Barnard(barnard_lnI_filter6) log(irradiance) for the Direct Narrowband Filter5, Michalsky(michalsky_lnI_filter5) log(irradiance) for the Direct Broadband, Michalsky(michalsky_lnI_broadband) rejected points for the final fit for the Direct Narrowband Filter6, Barnard(barnard_rejected_filter6) rejected points for the final fit for the Direct Broadband, Barnard(barnard_rejected_broadband) rejected points for the final fit for the Direct Narrowband Filter1, Michalsky(michalsky_rejected_filter1) rejected points for the final fit for the Direct Narrowband Filter4, Barnard(barnard_rejected_filter4) rejected points for the final fit for the Direct Narrowband Filter3, Michalsky(michalsky_rejected_filter3) log(irradiance) for the Direct Narrowband Filter2, Michalsky(michalsky_lnI_filter2) log(irradiance) for the Direct Narrowband Filter2, Barnard(barnard_lnI_filter2) log(irradiance) for the Direct Narrowband Filter4, Michalsky(michalsky_lnI_filter4) log(irradiance) for the Direct Narrowband Filter6, Michalsky(michalsky_lnI_filter6) airmass(michalsky_airmass) rejected points for the final fit for the Direct Narrowband Filter6, Michalsky(michalsky_rejected_filter6) log(irradiance) for the Direct Narrowband Filter4, Barnard(barnard_lnI_filter4) log(irradiance) for the Direct Broadband, Barnard(barnard_lnI_broadband) twpmfrsrC1.b1: Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband) Azimuth angle(azimuth_angle) cosine correction, south to north, filter4(cosine_correction_sn_filter4) Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2) Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5) Cosine correction of filter1 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter1) time(time) lat(lat) Cosine correction applied to direct_horizontal_broadband(computed_cosine_correction_broadband) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) Ratio of direct_normal_narrowband_filter4 to diffuse_hemisp_narrowband_filter4(direct_diffuse_ratio_filter4) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Cosine correction applied to direct_horizontal_narrowband_filter3(computed_cosine_correction_filter3) Cosine correction of filter5 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter5) cosine correction, west to east, filter3(cosine_correction_we_filter3) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Cosine of Solar Zenith Angle(cosine_solar_zenith_angle) Cosine correction applied to direct_horizontal_narrowband_filter5(computed_cosine_correction_filter5) Elevation Angle(elevation_angle) Air mass(airmass) Normalized filter function data, filter 6, wavelength value obtained during bench calibrations(wavelength_filter6) Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6) cosine correction, west to east, filter1(cosine_correction_we_filter1) Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1) cosine correction, west to east, filter5(cosine_correction_we_filter5) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) angle of incidence during cosine bench measurements(bench_angle) Cosine correction applied to direct_horizontal_narrowband_filter1(computed_cosine_correction_filter1) Offset subtracted from upwelling hemispheric filter5 data(offset_filter5) Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3) Normalized filter function data, filter 3, wavelength value obtained during bench calibrations(wavelength_filter3) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Normalized filter function data, filter 2, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter2) Offset subtracted from upwelling hemispheric filter1 data(offset_filter1) Solar zenith angle(solar_zenith_angle) Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5) Normalized filter function data, filter 1, wavelength value obtained during bench calibrations(wavelength_filter1) Data Logger Supply Voltage(logger_volt) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) cosine correction, south to north, broadband channel(cosine_correction_sn_broadband) Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3) Offset subtracted from upwelling hemispheric filter3 data(offset_filter3) Normalized filter function data, filter 5, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter5) Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3) Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband) Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Detector Temperature(head_temp) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3) Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5) Time offset of tweaks from base_time(time_offset) Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5) cosine correction, south to north, filter6(cosine_correction_sn_filter6) Second Detector Temperature(head_temp2) Cosine correction of filter3 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter3) Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1) cosine correction, south to north, filter2(cosine_correction_sn_filter2) Ratio of direct_normal_narrowband_filter1 to diffuse_hemisp_narrowband_filter1(direct_diffuse_ratio_filter1) cosine correction, south to north, filter3(cosine_correction_sn_filter3) cosine correction, south to north, filter5(cosine_correction_sn_filter5) Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1) Normalized filter function data, filter 4, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter4) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2) Normalized filter function data, filter 5, wavelength value obtained during bench calibrations(wavelength_filter5) cosine correction, west to east, filter6(cosine_correction_we_filter6) base time(base_time) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Ratio of direct_normal_narrowband_filter5 to diffuse_hemisp_narrowband_filter5(direct_diffuse_ratio_filter5) Logger panel temperature(logger_temp) Cosine correction applied to direct_horizontal_narrowband_filter2(computed_cosine_correction_filter2) cosine correction, west to east, filter2(cosine_correction_we_filter2) Cosine correction of filter6 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter6) cosine correction, south to north, filter1(cosine_correction_sn_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) lon(lon) cosine correction, west to east, filter4(cosine_correction_we_filter4) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) Cosine correction applied to direct_horizontal_narrowband_filter4(computed_cosine_correction_filter4) Offset subtracted from upwelling hemispheric broadband data(offset_broadband) Normalized filter function data, filter 4, wavelength value obtained during bench calibrations(wavelength_filter4) Normalized filter function data, filter 1, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter1) Ratio of direct_normal_narrowband_filter2 to diffuse_hemisp_narrowband_filter2(direct_diffuse_ratio_filter2) Normalized filter function data, filter 2, wavelength value obtained during bench calibrations(wavelength_filter2) Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2) Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4) cosine correction, west to east, broadband channel(cosine_correction_we_broadband) Hemispheric Irradiance, MFRSR(hemisp_broadband) Offset subtracted from upwelling hemispheric filter6 data(offset_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Ratio of direct_normal_narrowband_filter6 to diffuse_hemisp_narrowband_filter6(direct_diffuse_ratio_filter6) Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband) Offset subtracted from upwelling hemispheric filter4 data(offset_filter4) Offset subtracted from upwelling hemispheric filter2 data(offset_filter2) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5) Normalized filter function data, filter 3, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter3) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Dummy altitude for Zeb(alt) Normalized filter function data, filter 6, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter6) Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2) Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4) Ratio of direct_normal_broadband to diffuse_hemisp_broadband(direct_diffuse_ratio_broadband) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) Cosine correction of filter2 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter2) Cosine correction applied to direct_horizontal_narrowband_filter6(computed_cosine_correction_filter6) Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6) Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4) Cosine correction of broadband diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_broadband) Cosine correction of filter4 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter4) twpmfrsraod1michC1.c1: Normalized filter function data, filter 3, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter3) Hemispheric Irradiance, MFRSR(hemisp_broadband) cosine correction, west to east, filter6(cosine_correction_we_filter6) Cosine correction applied to direct_horizontal_narrowband_filter1(computed_cosine_correction_filter1) Normalized filter function data, filter 5, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter5) Offset subtracted from upwelling hemispheric filter1 data(offset_filter1) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) Normalized filter function data, filter 6, wavelength value obtained during bench calibrations(wavelength_filter6) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw) Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5_raw) Normalized filter function data, filter 4, wavelength value obtained during bench calibrations(wavelength_filter4) Flag determined using cloud screen algorithm(variability_flag) Time offset of tweaks from base_time(time_offset) Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5) aerosol optical depth filter 1(aerosol_optical_depth_filter1) angle of incidence during cosine bench measurements(bench_angle) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) total optical depth direct narrowband filter 4(total_optical_depth_filter4) Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband) Cosine correction of filter2 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter2) Cosine correction applied to direct_horizontal_broadband(computed_cosine_correction_broadband) Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2) Ratio of direct_normal_narrowband_filter1 to diffuse_hemisp_narrowband_filter1(direct_diffuse_ratio_filter1) Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4) Cosine of Solar Zenith Angle(cosine_solar_zenith_angle) Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw) Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband) Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4) Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) cosine correction, south to north, filter2(cosine_correction_sn_filter2) cosine correction, south to north, filter4(cosine_correction_sn_filter4) Normalized filter function data, filter 1, wavelength value obtained during bench calibrations(wavelength_filter1) total optical depth direct narrowband filter 2(total_optical_depth_filter2) Cosine correction of filter3 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter3) Rayleigh optical depth adjusted for surface pressure for filter 2(Rayleigh_optical_depth_filter2) Azimuth angle(azimuth_angle) Hemispheric Broadband Irradiance(hemisp_broadband_raw) Offset subtracted from upwelling hemispheric filter2 data(offset_filter2) angstrom exponent(angstrom_exponent) cosine correction, west to east, filter4(cosine_correction_we_filter4) Cosine correction of filter5 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter5) Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw) solar constant corrected for solar distance for the Direct Narrowb and Filter2(Io_filter2) Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3) Second Detector Temperature(head_temp2) cosine correction, west to east, filter2(cosine_correction_we_filter2) Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3) Rayleigh optical depth adjusted for surface pressure for filter 4(Rayleigh_optical_depth_filter4) Offset subtracted from upwelling hemispheric filter4 data(offset_filter4) Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw) Ozone absorption coefficient used for filter 5(Ozone_absorption_coefficient_filter5) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Ratio of direct_normal_broadband to diffuse_hemisp_broadband(direct_diffuse_ratio_broadband) surface pressure(surface_pressure) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) aerosol optical depth filter 4(aerosol_optical_depth_filter4) Normalized filter function data, filter 3, wavelength value obtained during bench calibrations(wavelength_filter3) solar constant corrected for solar distance for the Direct Narrowb and Filter4(Io_filter4) time(time) Cosine correction applied to direct_horizontal_narrowband_filter5(computed_cosine_correction_filter5) Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband) Normalized filter function data, filter 1, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter1) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3) Cosine correction applied to direct_horizontal_narrowband_filter3(computed_cosine_correction_filter3) Ratio of direct_normal_narrowband_filter5 to diffuse_hemisp_narrowband_filter5(direct_diffuse_ratio_filter5) Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5) Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Normalized filter function data, filter 6, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter6) Solar zenith angle(solar_zenith_angle) Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5) Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw) Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3) Detector Temperature(head_temp) Cosine correction applied to direct_horizontal_narrowband_filter2(computed_cosine_correction_filter2) Cosine correction applied to direct_horizontal_narrowband_filter4(computed_cosine_correction_filter4) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Normalized filter function data, filter 4, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter4) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5) Ratio of direct_normal_narrowband_filter4 to diffuse_hemisp_narrowband_filter4(direct_diffuse_ratio_filter4) Wavelength(wavelength) Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw) aerosol optical depth filter 2(aerosol_optical_depth_filter2) Offset subtracted from upwelling hemispheric filter6 data(offset_filter6) Data Logger Supply Voltage(logger_volt) lon(lon) Cosine correction of filter1 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter1) Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1) Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband) base time(base_time) Normalized filter function data, filter 5, wavelength value obtained during bench calibrations(wavelength_filter5) total optical depth direct narrowband filter 5(total_optical_depth_filter5) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Cosine correction of broadband diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_broadband) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1) cosine correction, west to east, broadband channel(cosine_correction_we_broadband) Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3) Ratio of direct_normal_narrowband_filter6 to diffuse_hemisp_narrowband_filter6(direct_diffuse_ratio_filter6) total optical depth direct narrowband filter 3(total_optical_depth_filter3) cosine correction, south to north, filter3(cosine_correction_sn_filter3) Ozone column amount from TOMS satellite(Ozone_column_amount) Top of atmosphere direct normal solar irradiance(TOA_irradiance) Elevation Angle(elevation_angle) Air mass(airmass) Ratio of direct_normal_narrowband_filter2 to diffuse_hemisp_narrowband_filter2(direct_diffuse_ratio_filter2) Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6) cosine correction, south to north, filter5(cosine_correction_sn_filter5) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw) solar constant corrected for solar distance for the Direct Narrowb and Filter5(Io_filter5) Cosine correction of filter4 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter4) cosine correction, south to north, filter6(cosine_correction_sn_filter6) cosine correction, west to east, filter5(cosine_correction_we_filter5) cosine correction, south to north, filter1(cosine_correction_sn_filter1) Cosine correction of filter6 diffuse, assuming Rayleigh sky at 45 deg zenith angle(diffuse_correction_filter6) Dummy altitude for Zeb(alt) cosine correction, west to east, filter3(cosine_correction_we_filter3) Offset subtracted from upwelling hemispheric filter3 data(offset_filter3) Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw) Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2) aerosol optical depth filter 3(aerosol_optical_depth_filter3) Logger panel temperature(logger_temp) Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4) lat(lat) Rayleigh optical depth adjusted for surface pressure for filter 5(Rayleigh_optical_depth_filter5) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw) sun to earth distance(sun_to_earth_distance) solar constant corrected for solar distance for the Direct Narrowb and Filter1(Io_filter1) Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2) Rayleigh optical depth adjusted for surface pressure for filter 3(Rayleigh_optical_depth_filter3) aerosol optical depth filter 5(aerosol_optical_depth_filter5) cosine correction, west to east, filter1(cosine_correction_we_filter1) Cosine correction applied to direct_horizontal_narrowband_filter6(computed_cosine_correction_filter6) Rayleigh optical depth adjusted for surface pressure for filter 1(Rayleigh_optical_depth_filter1) total optical depth direct narrowband filter 1(total_optical_depth_filter1) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw) Normalized filter function data, filter 2, wavelength value obtained during bench calibrations(wavelength_filter2) cosine correction, south to north, broadband channel(cosine_correction_sn_broadband) Normalized filter function data, filter 2, measured transmittance value obtained during bench calibrations(normalized_transmittance_filter2) Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6) solar constant corrected for solar distance for the Direct Narrowb and Filter3(Io_filter3) Offset subtracted from upwelling hemispheric broadband data(offset_broadband) Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2) Offset subtracted from upwelling hemispheric filter5 data(offset_filter5) twpmfrsrC1.a0: Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Offset subtracted from upwelling hemispheric filter5 data(offset_filter5) Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4) Data Logger Supply Voltage(logger_volt) Hemispheric Broadband Irradiance(hemisp_broadband_raw) Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2) Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Second Detector Temperature(head_temp2) Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5) Detector Temperature(head_temp) Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5_raw) Offset subtracted from upwelling hemispheric filter3 data(offset_filter3) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) lat(lat) Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw) Offset subtracted from upwelling hemispheric broadband data(offset_broadband) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw) Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3) Time offset of tweaks from base_time(time_offset) Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2) Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5) Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband) base time(base_time) Offset subtracted from upwelling hemispheric filter1 data(offset_filter1) Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1) Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw) Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6) Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw) Offset subtracted from upwelling hemispheric filter2 data(offset_filter2) Dummy altitude for Zeb(alt) Hemispheric Irradiance, MFRSR(hemisp_broadband) lon(lon) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) Logger panel temperature(logger_temp) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw) Offset subtracted from upwelling hemispheric filter6 data(offset_filter6) Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Offset subtracted from upwelling hemispheric filter4 data(offset_filter4) time(time) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)

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DQRID : D980512.1

Start Date	Start Time	End Date	End Time
10/21/1996	1803	08/27/1997	2359

Subject:	TWP/MFRSR/C1 - Calibration Drift
DataStreams:	twpmfrsrC1.a0, twpmfrsrC1.b1
Description:	Through this period we see significant drift in all of the MFRSR channels except the 862 nm channel. The most serious drift occurred in the 610 and 665 nm channels which suffered a loss in sensitivity of a factor of 5 or more over the affected period. The MFRSR head was replaced on August 27, 1997 during a RESET visit.
Measurements:	twpmfrsrC1.b1: Ratio of direct_normal_narrowband_filter1 to diffuse_hemisp_narrowband_filter1(direct_diffuse_ratio_filter1) Ratio of direct_normal_narrowband_filter4 to diffuse_hemisp_narrowband_filter4(direct_diffuse_ratio_filter4) Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Ratio of direct_normal_narrowband_filter2 to diffuse_hemisp_narrowband_filter2(direct_diffuse_ratio_filter2) Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband) Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4) Ratio of direct_normal_broadband to diffuse_hemisp_broadband(direct_diffuse_ratio_broadband) Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) Hemispheric Irradiance, MFRSR(hemisp_broadband) Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Ratio of direct_normal_narrowband_filter6 to diffuse_hemisp_narrowband_filter6(direct_diffuse_ratio_filter6) Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband) Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6) Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1) Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) twpmfrsrC1.a0: Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw) Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw) Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6) Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband) Hemispheric Broadband Irradiance(hemisp_broadband_raw) Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2) Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw) Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6) Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband) Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4) Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6) Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3) Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2) Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw) Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1) Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw) Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3) Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3) Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband) Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1) Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw) Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3) Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw) Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw) Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4) Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6) Hemispheric Irradiance, MFRSR(hemisp_broadband) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw) Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1) Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2) Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4) Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)

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DQRID : D990906.2

Start Date	Start Time	End Date	End Time
09/02/1999	2018	09/04/1999	0513

Subject:	TWP/MFRSR/C1 - Reprocess: Metadata error
DataStreams:	twpmfrsrC1.a0, twpmfrsrC1.b1
Description:	The mfrsr C1 head was swapped out on 99.09.02. The old head ID ($0248) remained in the data stream until 99.09.04, at which time the correct value, $0922 was loaded.
Measurements:	twpmfrsrC1.b1: base time(base_time) twpmfrsrC1.a0: base time(base_time)

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DQRID : D990912.1

Start Date	Start Time	End Date	End Time
02/27/1999	0000	08/12/1999	2359

Subject:	TWP/MFRSR/C1 - Reprocess: Metadata error
DataStreams:	twpmfrsrC1.a0, twpmfrsrC1.b1
Description:	On 1999/02/27 head 225 was replaced by head 227 but the head ID was not updated in the documentation until 1999/08/12. The head ID was incorrectly reported in the data for this period.
Measurements:	twpmfrsrC1.b1: base time(base_time) twpmfrsrC1.a0: base time(base_time)

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END OF DATA