DQRs for Session: 104838 User:fostermbCompleted: 03-17-2007

Data Quality Reports for Session: 104838 User: fostermb Completed: 03/17/2007

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D000711.62	TWP/C1/GNDRAD Net Radiometer: Cracked dome	twpgndrad60sC1.a1, twpgndrad60sC1.b1
D000711.64	TWP/GNDRAD/C1 - Net Radiometer: Correction for negative net fluxes	twpgndrad60sC1.a1, twpgndrad60sC1.b1
D000711.68	TWP/GNDRAD/C1 - PIR: Incorrect wiring	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
D000711.70	TWP/GNDRAD/C1 - PIR and IRT: surface temperature comparison	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
D000718.20	TWP/GNDRAD/C1 - PIR: Extended data gap	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
D000718.21	TWP/GNDRAD/C1 - PSP: Comparison test	twpgndrad60sC1.a1, twpgndrad60sC1.b1
D000719.3	TWP/SKYRAD/GNDRAD/C1 - PSP: Configuration file problem	twpgndrad60sC1.a1, twpgndrad60sC1.b1, twpskyrad60sC1.a1, twpskyrad60sC1.b1
D000726.5	TWP/GNDRAD/C1 - Extended data gap	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
D011211.5	TWP/GNDRAD/C1 - GNDRAD radiometer replacement	twpgndrad60sC1.a1, twpgndrad60sC1.b1
D020620.61	TWP/C1 - Incorrect elevation reported in Manus Data	twpsmet60sC1.a1, twpsmet60sC1.b1, twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
D030317.3	TWP/GNDRAD/C1 - GNDRAD logger configured as SMET	twpgndradC1.00, twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
D031215.2	TWP/GNDRAD/C1 -PIRdown and PSPdown Inverted for Comparison	twpgndradC1.00, twpgndrad20sC1.a1, twpgndrad60sC1.b1
D040813.9	TWP/GNDRAD/C1 - RESET 14 activities	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
D041106.2	TWP/GNDRAD/C1 - GNDRAD inverted for radiometer comparison	twpgndrad60sC1.b1
D051123.2	TWP/GNDRAD/C1 - Gndrad inverted for comparison of radiometers	twpgndrad60sC1.b1
D060630.34	TWP/GNDRAD/C1 - Reprocess: Longwave Calibration error	twpgndrad60sC1.b1
D981222.3	TWP/GNDRAD/C1 - Incorrect dome calibration factor	twpgndradC1.00, twpgndrad20sC1.a1, twpgndrad60sC1.00, twpgndrad60sC1.a1, twpgndrad60sC1.b1

DQRID : D000711.62

Start Date	Start Time	End Date	End Time
10/11/1996	0000	07/27/1997	2359

Subject:	TWP/C1/GNDRAD Net Radiometer: Cracked dome
DataStreams:	twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	A crack in the up-looking radiometer dome was discovered on 970227. It is not known how long the dome was cracked. The dome was replaced with a spare, out of calibration unit, on 970227. There was not an obvious change in the instrument performance when the instrument was replaced.
Measurements:	twpgndrad60sC1.b1: NET standard deviation(net_sd) Net Radiation, Maxima(net_max) Net Radiation, Minima(net_min) NET mean(net_mean) twpgndrad60sC1.a1: Net Radiation, Maxima(net_max) NET standard deviation(net_sd) Net Radiation, Minima(net_min) NET mean(net_mean)

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DQRID : D000711.64

Start Date	Start Time	End Date	End Time
10/11/1996	0000	11/30/1997	2359

Subject:	TWP/GNDRAD/C1 - Net Radiometer: Correction for negative net fluxes
DataStreams:	twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	The Net radiometer seems to have a calibration problem and a poor cosine response. The Net radiometer consistently measures low relative to Net surface irradiance calculated from the SKYRAD and GNDRAD Eppleys around local noon. The relative discrepancy changes rapidly with sun angle and the two streams typically cross in mid-morning and mid-afternoon beyond which the Net radiometer reads high relative to the Eppleys. The net radiometer typically reports postive values for the net flux during the day and negative values at night. There are actually different calibration coefficients that must be applied for positive and negative fluxes. Currently, all data are processed by applying the positive flux coefficient. Consequently, the negative values are in error. The net flux, F, is obtained by simply applying the formula F = CV where V is the measured voltage and C is the calibration factor. Therefore, negative fluxes can be corrected by multiplying the fluxes by the ratio of the negative calibration factor, C_neg to the postive factor C_pos, so the corrected flux for negative values is equal to F_neg = FC_neg/C_pos where F is the flux value reported in the data files. Through 970227, the values for these calibration factors are F_pos = 9.26 and F_neg = 11.43. After 970227, the calibration factors are F_pos = 9.33 and F_neg = 11.6.
Measurements:	twpgndrad60sC1.b1: NET standard deviation(net_sd) Net Radiation, Maxima(net_max) Net Radiation, Minima(net_min) NET mean(net_mean) twpgndrad60sC1.a1: Net Radiation, Maxima(net_max) NET standard deviation(net_sd) Net Radiation, Minima(net_min) NET mean(net_mean)

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DQRID : D000711.68

Start Date	Start Time	End Date	End Time
12/11/1996	0000	02/27/1997	0659

Subject:	TWP/GNDRAD/C1 - PIR: Incorrect wiring
DataStreams:	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	Data from the GNDRAD PIR is not valid for this period because of an incorrect connection to the data logger. Collection of good data from the PIR resumed on 970227 at 07Z.
Measurements:	twpgndrad20sC1.a1: Instantaneous PIR1 dome thermistor(pir1_dome_therm) Instantaneous PIR1 uncorrected irradiance(pir1_voltage) Instantaneous PIR1 case thermistor(pir1_case_therm) twpgndrad60sC1.b1: PIR1 unshaded mean(pir1_mean) PIR1 unshaded maximum(pir1_max) PIR1 unshaded minimum(pir1_min) PIR1 unshaded standard deviation(pir1_sd) twpgndrad60sC1.a1: PIR1 unshaded mean(pir1_mean) PIR1 unshaded minimum(pir1_min) PIR1 unshaded standard deviation(pir1_sd) PIR1 unshaded maximum(pir1_max)

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DQRID : D000711.70

Start Date	Start Time	End Date	End Time
11/01/1998	0000	03/31/1999	2359

Subject:	TWP/GNDRAD/C1 - PIR and IRT: surface temperature comparison
DataStreams:	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	The GNDRAD continues to look nominally OK. The daily average irradiances are about what is expected. The comparison of the downward facing IRT and the calculated brightness temperature from the downward facing PIR show agreement within and average of about 0.5O C. About 19981206, the daily average agreement suddenly seems to have gotten better. We should note to monitor this in the next data package.
Measurements:	twpgndrad20sC1.a1: Instantaneous PIR1 uncorrected irradiance(pir1_voltage) Instantaneous PIR1 case thermistor(pir1_case_therm) Instantaneous PIR1 dome thermistor(pir1_dome_therm) twpgndrad60sC1.b1: IRT1 standard deviation(irt1_sd) IRT1 mean(irt1_mean) IRT1 maximum(irt1_max) PIR1 unshaded standard deviation(pir1_sd) PIR1 unshaded mean(pir1_mean) PIR1 unshaded maximum(pir1_max) PIR1 unshaded minimum(pir1_min) IRT1 minimum(irt1_min) twpgndrad60sC1.a1: PIR1 unshaded minimum(pir1_min) IRT1 minimum(irt1_min) IRT1 standard deviation(irt1_sd) IRT1 mean(irt1_mean) PIR1 unshaded maximum(pir1_max) IRT1 maximum(irt1_max) PIR1 unshaded mean(pir1_mean) PIR1 unshaded standard deviation(pir1_sd)

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DQRID : D000718.20

Start Date	Start Time	End Date	End Time
12/02/1996	1400	02/28/1997	0000

Subject:	TWP/GNDRAD/C1 - PIR: Extended data gap
DataStreams:	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	The lines to the GNDRAD data logger were cut on December 2, 1996 at approximately 1400 GMT. No data was collected from GNDRAD until the lines were reconnected on December 12 at approximately 0200 GMT. The PIR was not reconnected properly, however, and data flow from that instrument did not resume until a RESET visit in February. Data flow for the PIR resumed on February 28, 1997. The IRT and Net radiometer appear to be operating as before, but without the downlooking PIR, we cannot perform any internal tests.
Measurements:	twpgndrad20sC1.a1: Instantaneous PIR1 dome thermistor(pir1_dome_therm) Instantaneous PIR1 uncorrected irradiance(pir1_voltage) Instantaneous PIR1 case thermistor(pir1_case_therm) twpgndrad60sC1.b1: PIR1 unshaded mean(pir1_mean) PIR1 unshaded maximum(pir1_max) PIR1 unshaded minimum(pir1_min) PIR1 unshaded standard deviation(pir1_sd) twpgndrad60sC1.a1: PIR1 unshaded mean(pir1_mean) PIR1 unshaded minimum(pir1_min) PIR1 unshaded standard deviation(pir1_sd) PIR1 unshaded maximum(pir1_max)

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DQRID : D000718.21

Start Date	Start Time	End Date	End Time
02/23/1997	2000	02/24/1997	2300

Subject:	TWP/GNDRAD/C1 - PSP: Comparison test
DataStreams:	twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	The GNDRAD PSP was turned upside-down for comparison with the SKYRAD PSPs.
Measurements:	twpgndrad60sC1.b1: PSP1 unshaded standard deviation(psp1_sd) PSP1 unshaded mean(psp1_mean) PSP1 unshaded maximum(psp1_max) PSP1 unshaded minimum(psp1_min) twpgndrad60sC1.a1: PSP1 unshaded standard deviation(psp1_sd) PSP1 unshaded minimum(psp1_min) PSP1 unshaded maximum(psp1_max) PSP1 unshaded mean(psp1_mean)

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DQRID : D000719.3

Start Date	Start Time	End Date	End Time
03/02/1999	0641	03/04/1999	0200

Subject:	TWP/SKYRAD/GNDRAD/C1 - PSP: Configuration file problem
DataStreams:	twpgndrad60sC1.a1, twpgndrad60sC1.b1, twpskyrad60sC1.a1, twpskyrad60sC1.b1
Description:	The following incorrect calibrations values were input into SKYRAD and GNDRAD loggers: Values in Logger Correct Values Responsivity Cal Number Responsivity Cal number PSPD_SKYRAD 8.31 120337 8.32 120192 PSPG_SKYRAD 8.46 118203 8.64 115741 PSPDn_GNDRAD 7.79 128370 7.90 126582 This error occured because several calibration coefficients are reported and the wrong one was used. The 45-55 degree (solar zenith angle range) value should be used. At approximately 02 GMT on 19990304, these numbers were corrected.
Measurements:	twpskyrad60sC1.a1: PSP shaded minimum(psps_min) PSP shaded maximum(psps_max) PSP1 unshaded maximum(psp1_max) PSP1 unshaded minimum(psp1_min) PSP shaded mean(psps_mean) PSP1 unshaded standard deviation(psp1_sd) PSP shaded standard deviation(psps_sd) PSP1 unshaded mean(psp1_mean) twpgndrad60sC1.b1: PSP1 unshaded mean(psp1_mean) PSP1 unshaded minimum(psp1_min) PSP1 unshaded standard deviation(psp1_sd) PSP1 unshaded maximum(psp1_max) twpgndrad60sC1.a1: PSP1 unshaded mean(psp1_mean) PSP1 unshaded standard deviation(psp1_sd) PSP1 unshaded minimum(psp1_min) PSP1 unshaded maximum(psp1_max) twpskyrad60sC1.b1: PSP shaded mean(psps_mean) PSP shaded maximum(psps_max) PSP1 unshaded mean(psp1_mean) PSP1 unshaded maximum(psp1_max) PSP shaded minimum(psps_min) PSP1 unshaded standard deviation(psp1_sd) PSP shaded standard deviation(psps_sd) PSP1 unshaded minimum(psp1_min)

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DQRID : D000726.5

Start Date	Start Time	End Date	End Time
12/02/1996	1400	12/12/1996	0200

Subject:	TWP/GNDRAD/C1 - Extended data gap
DataStreams:	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	The lines to the GNDRAD data logger were cut on December 2, 1996 at approximately 1400 GMT. No data was collected from GNDRAD until the lines were reconnected on December 12 at approximately 0200 GMT.
Measurements:	twpgndrad20sC1.a1: Time offset of tweaks from base_time(time_offset) Time offset from base_time(base_time) GPS raw data filename(filename) altitude above sea levelaltunits(alt) north latitude for all the input platforms.(lat) Instantaneous PIR1 dome thermistor(pir1_dome_therm) Instantaneous PIR1 uncorrected irradiance(pir1_voltage) Instantaneous PIR1 case thermistor(pir1_case_therm) east longitude for all the input platforms.(lon) twpgndrad60sC1.b1: IRT1 standard deviation(irt1_sd) IRT1 maximum(irt1_max) Time offset from base_time(base_time) altitude above sea levelaltunits(alt) GPS raw data filename(filename) PIR1 unshaded mean(pir1_mean) Net Radiation, Minima(net_min) Internal voltage(internal_voltage) PSP1 unshaded mean(psp1_mean) north latitude for all the input platforms.(lat) PIR1 unshaded standard deviation(pir1_sd) PSP1 unshaded minimum(psp1_min) Internal Logger Temperature(logger_temp) PIR1 unshaded minimum(pir1_min) IRT1 minimum(irt1_min) External voltage(external_voltage) NET standard deviation(net_sd) Net Radiation, Maxima(net_max) Bit data. See details.(bit_data) PIR1 unshaded maximum(pir1_max) PSP1 unshaded maximum(psp1_max) Time offset of tweaks from base_time(time_offset) IRT1 mean(irt1_mean) east longitude for all the input platforms.(lon) PSP1 unshaded standard deviation(psp1_sd) NET mean(net_mean) twpgndrad60sC1.a1: IRT1 mean(irt1_mean) Net Radiation, Minima(net_min) NET mean(net_mean) PSP1 unshaded minimum(psp1_min) east longitude for all the input platforms.(lon) PIR1 unshaded minimum(pir1_min) IRT1 minimum(irt1_min) PIR1 unshaded maximum(pir1_max) north latitude for all the input platforms.(lat) IRT1 maximum(irt1_max) PSP1 unshaded mean(psp1_mean) PIR1 unshaded mean(pir1_mean) Internal Logger Temperature(logger_temp) GPS raw data filename(filename) External voltage(external_voltage) Net Radiation, Maxima(net_max) altitude above sea levelaltunits(alt) Time offset from base_time(base_time) PSP1 unshaded standard deviation(psp1_sd) PIR1 unshaded standard deviation(pir1_sd) NET standard deviation(net_sd) Time offset of tweaks from base_time(time_offset) IRT1 standard deviation(irt1_sd) Internal voltage(internal_voltage) PSP1 unshaded maximum(psp1_max) Bit data. See details.(bit_data)

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DQRID : D011211.5

Start Date	Start Time	End Date	End Time
10/25/2001	0000	10/25/2001	0100

Subject:	TWP/GNDRAD/C1 - GNDRAD radiometer replacement
DataStreams:	twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	The GNDRAD radiometers were replaced 10/25/01 from 00:00 to 01:00.
Measurements:	twpgndrad60sC1.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) twpgndrad60sC1.a1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std)

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DQRID : D020620.61

Start Date	Start Time	End Date	End Time
10/10/1996	0001	06/22/2000	2359

Subject:	TWP/C1 - Incorrect elevation reported in Manus Data
DataStreams:	twpsmet60sC1.a1, twpsmet60sC1.b1, twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	(From Bill Clements) We have been using 6m MSL as the station elevation of Momote (Manus). This was based on information posted near the station barometer in the Momote Weather Service Office. It turns out that the official WMO station elevation for Momote is 4m MSL and the upper air elevation is 5m MSL. All Manus instruments except the sonde station are at 4m MSL. The sonde launching station is at 5m MSL.
Measurements:	twpgndrad20sC1.a1: altitude above sea levelaltunits(alt) twpgndrad60sC1.b1: altitude above sea levelaltunits(alt) twpsmet60sC1.b1: altitude above sea levelaltunits(alt) twpgndrad60sC1.a1: altitude above sea levelaltunits(alt) twpsmet60sC1.a1: altitude above sea levelaltunits(alt)

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DQRID : D030317.3

Start Date	Start Time	End Date	End Time
03/03/2003	1700	03/13/2003	2130

Subject:	TWP/GNDRAD/C1 - GNDRAD logger configured as SMET
DataStreams:	twpgndradC1.00, twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	the configuration for the SMET was inadvertently loaded into the GNDRAD at Manus at 03/03/2003 17:00 GMT. This error was found and corrected on 03/13/2003 at 21:30 GMT.
Measurements:	twpgndrad20sC1.a1: Time offset of tweaks from base_time(time_offset) Time offset from base_time(base_time) GPS raw data filename(filename) altitude above sea levelaltunits(alt) north latitude for all the input platforms.(lat) Instantaneous PIR1 dome thermistor(pir1_dome_therm) Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist) Instantaneous PIR1 uncorrected irradiance(pir1_voltage) Instantaneous PIR1 case thermistor(pir1_case_therm) Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp) east longitude for all the input platforms.(lon) Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist) twpgndrad60sC1.b1: IRT1 standard deviation(irt1_sd) IRT1 maximum(irt1_max) Time offset from base_time(base_time) altitude above sea levelaltunits(alt) GPS raw data filename(filename) PIR1 unshaded mean(pir1_mean) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std) Net Radiation, Minima(net_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) Internal voltage(internal_voltage) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) PSP1 unshaded mean(psp1_mean) north latitude for all the input platforms.(lat) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) PIR1 unshaded standard deviation(pir1_sd) PSP1 unshaded minimum(psp1_min) Net Radiation, Standard Deviation(net_std) Internal Logger Temperature(logger_temp) Net Radiation(net) PIR1 unshaded minimum(pir1_min) IRT1 minimum(irt1_min) External voltage(external_voltage) NET standard deviation(net_sd) Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Net Radiation, Maxima(net_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) Bit data. See details.(bit_data) Effective Surface (Skin) Temperature(sfc_ir_temp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) PIR1 unshaded maximum(pir1_max) PSP1 unshaded maximum(psp1_max) Time offset of tweaks from base_time(time_offset) IRT1 mean(irt1_mean) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) east longitude for all the input platforms.(lon) PSP1 unshaded standard deviation(psp1_sd) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) NET mean(net_mean) twpgndrad60sC1.a1: IRT1 mean(irt1_mean) Net Radiation, Minima(net_min) NET mean(net_mean) PSP1 unshaded minimum(psp1_min) east longitude for all the input platforms.(lon) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) Effective Surface (Skin) Temperature(sfc_ir_temp) PIR1 unshaded minimum(pir1_min) IRT1 minimum(irt1_min) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std) PIR1 unshaded maximum(pir1_max) north latitude for all the input platforms.(lat) PSP1 unshaded mean(psp1_mean) IRT1 maximum(irt1_max) PIR1 unshaded mean(pir1_mean) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) Internal Logger Temperature(logger_temp) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) GPS raw data filename(filename) Net Radiation, Standard Deviation(net_std) External voltage(external_voltage) Net Radiation, Maxima(net_max) altitude above sea levelaltunits(alt) Time offset from base_time(base_time) PSP1 unshaded standard deviation(psp1_sd) PIR1 unshaded standard deviation(pir1_sd) Net Radiation(net) NET standard deviation(net_sd) Time offset of tweaks from base_time(time_offset) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) IRT1 standard deviation(irt1_sd) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Internal voltage(internal_voltage) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) PSP1 unshaded maximum(psp1_max) Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Bit data. See details.(bit_data) twpgndradC1.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D031215.2

Start Date	Start Time	End Date	End Time
12/01/2003	0620	12/09/2003	1155

Subject:	TWP/GNDRAD/C1 -PIRdown and PSPdown Inverted for Comparison
DataStreams:	twpgndradC1.00, twpgndrad20sC1.a1, twpgndrad60sC1.b1
Description:	PIRdown and PSPdown instruments inverted for comparison with calibrated instruments.
Measurements:	twpgndrad20sC1.a1: Instantaneous PIR1 case thermistor(pir1_case_therm) Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist) Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp) Instantaneous PIR1 dome thermistor(pir1_dome_therm) Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist) twpgndrad60sC1.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) PSP1 unshaded mean(psp1_mean) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) PIR1 unshaded standard deviation(pir1_sd) PSP1 unshaded minimum(psp1_min) PSP1 unshaded standard deviation(psp1_sd) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) PIR1 unshaded mean(pir1_mean) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) PIR1 unshaded maximum(pir1_max) PSP1 unshaded maximum(psp1_max) PIR1 unshaded minimum(pir1_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) twpgndradC1.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D040813.9

Start Date	Start Time	End Date	End Time
10/09/2001	0000	10/26/2001	2359

Subject:	TWP/GNDRAD/C1 - RESET 14 activities
DataStreams:	twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	RESET14 activities may have affected data in in subtle ways during this period.
Measurements:	twpgndrad20sC1.a1: Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp) Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist) Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist) twpgndrad60sC1.b1: Net Radiation, Maxima(net_max) Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) Effective Surface (Skin) Temperature(sfc_ir_temp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) Net Radiation, Minima(net_min) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) Net Radiation, Standard Deviation(net_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Net Radiation(net) twpgndrad60sC1.a1: Surface Infra-Red Temperature Minima(sfc_ir_temp_min) Net Radiation, Standard Deviation(net_std) Net Radiation, Maxima(net_max) Net Radiation, Minima(net_min) NET mean(net_mean) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) Effective Surface (Skin) Temperature(sfc_ir_temp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max)

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DQRID : D041106.2

Start Date	Start Time	End Date	End Time
11/01/2004	0040	11/05/2004	2318

Subject:	TWP/GNDRAD/C1 - GNDRAD inverted for radiometer comparison
DataStreams:	twpgndrad60sC1.b1
Description:	The GNDRAD PIR and PSP were inverted during this period for comparison with replacement instruments.
Measurements:	twpgndrad60sC1.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) PSP1 unshaded mean(psp1_mean) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) PIR1 unshaded standard deviation(pir1_sd) PSP1 unshaded minimum(psp1_min) PSP1 unshaded standard deviation(psp1_sd) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) PIR1 unshaded mean(pir1_mean) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) PIR1 unshaded maximum(pir1_max) PSP1 unshaded maximum(psp1_max) PIR1 unshaded minimum(pir1_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min)

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DQRID : D051123.2

Start Date	Start Time	End Date	End Time
11/11/2005	2230	11/17/2005	0030

Subject:	TWP/GNDRAD/C1 - Gndrad inverted for comparison of radiometers
DataStreams:	twpgndrad60sC1.b1
Description:	Radiometers GNDRAD PIR and PSP inverted for radiometer comparison
Measurements:	twpgndrad60sC1.b1: NET standard deviation(net_sd) Net Radiation, Maxima(net_max) Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) Effective Surface (Skin) Temperature(sfc_ir_temp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) PIR1 unshaded mean(pir1_mean) PSP1 unshaded maximum(psp1_max) PIR1 unshaded maximum(pir1_max) Net Radiation, Minima(net_min) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) PSP1 unshaded mean(psp1_mean) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) PIR1 unshaded standard deviation(pir1_sd) PSP1 unshaded minimum(psp1_min) PSP1 unshaded standard deviation(psp1_sd) Net Radiation, Standard Deviation(net_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Net Radiation(net) PIR1 unshaded minimum(pir1_min) NET mean(net_mean)

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DQRID : D060630.34

Start Date	Start Time	End Date	End Time
08/02/2004	0700	12/21/2005	2204

Subject:	TWP/GNDRAD/C1 - Reprocess: Longwave Calibration error
DataStreams:	twpgndrad60sC1.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in December 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place are being reprocessing to remove the calibration bias. Note, this also affected standard deviation, maximum and minimum data fields.
Measurements:	twpgndrad60sC1.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)

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DQRID : D981222.3

Start Date	Start Time	End Date	End Time
10/09/1996	1943	12/09/1998	0000

Subject:	TWP/GNDRAD/C1 - Incorrect dome calibration factor
DataStreams:	twpgndradC1.00, twpgndrad20sC1.a1, twpgndrad60sC1.00, twpgndrad60sC1.a1, twpgndrad60sC1.b1
Description:	The Manus GNDRAD PIR had an incorrect dome factor since installation. The following is an estimate by Chris Cornwall of the magnitude of the effect of this calibration error. The magnitude of this error is smaller than the calibration accuracy. > I processed the instantaneous data from ARCS2 (10, 30 and 50 > seconds after the minute) using 4.32 as the dome factor, and > also using 4.00 as the dome factor, as it should have been. > The difference between the calculated irradiance results > was negligible, as was expected with an instrument operating > in the downward-facing direction. > > Over the three days from 11/06/98 to 11/08/98, the error > between the two signals averaged 0.09%. Overnight values > were much lower than this, daytime values peaked at 0.42%. > The statistics for these error signals were as follows: > > average error 0.000895 > standard dev 0.001119 > max error 0.004242 > min error -0.00064 > > I believe we should change ARCS1 so it is using the correct > value for the groundrad pir dome coefficient (4.0 instead of > 4.32), and we may want to include a DQR stating these findings, > although they are much smaller than the overall uncertainty > of the PIR itself.
Measurements:	twpgndrad20sC1.a1: Instantaneous PIR1 uncorrected irradiance(pir1_voltage) Instantaneous PIR1 case thermistor(pir1_case_therm) Instantaneous PIR1 dome thermistor(pir1_dome_therm) twpgndrad60sC1.b1: PIR1 unshaded standard deviation(pir1_sd) PIR1 unshaded mean(pir1_mean) PIR1 unshaded maximum(pir1_max) PIR1 unshaded minimum(pir1_min) twpgndrad60sC1.a1: PIR1 unshaded minimum(pir1_min) PIR1 unshaded maximum(pir1_max) PIR1 unshaded mean(pir1_mean) PIR1 unshaded standard deviation(pir1_sd) twpgndradC1.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) twpgndrad60sC1.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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