DQRs for Session: 102427 User:yanCompleted: 11-01-2006

Data Quality Reports for Session: 102427 User: yan Completed: 11/01/2006

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D030110.36	SGP/SIRS/E10 - Noisy UIR	sgpsirsE10.a2, sgpsirsE10.b1, sgpsirs60sE10.a1
D030701.1	SGP/SIRS/E10 - Noisy US(upwelling shortwave) data stream problem	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
D031027.1	SGP/SIRS/E10 - Noisy UIR (upwelling longwave)data stream problem	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
D040831.4	SGP/SIRS/E10 - Reprocess: Incorrect shortwave radiometer calibration coefficients	sgpsirsE10.00, sgpsirsE10.b1
D041206.1	SGP/SIRS/E10 - tracker failure	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
D060630.18	SGP/SIRS/E10 - Reprocessed: Longwave Calibration error	sgpsirsE10.b1

DQRID : D030110.36

Start Date	Start Time	End Date	End Time
01/01/2002	0000	11/08/2002	1900

Subject:	SGP/SIRS/E10 - Noisy UIR
DataStreams:	sgpsirsE10.a2, sgpsirsE10.b1, sgpsirs60sE10.a1
Description:	Upwelling Infrared irradiance signals noisy resulting from problems with pyrgeometer signal cable connections.
Measurements:	sgpsirsE10.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) sgpsirsE10.a2: Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) sgpsirs60sE10.a1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std)

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DQRID : D030701.1

Start Date	Start Time	End Date	End Time
06/22/2003	0146	07/02/2003	1400

Subject:	SGP/SIRS/E10 - Noisy US(upwelling shortwave) data stream problem
DataStreams:	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
Description:	Beginning 6/22, upwelling shortwave values frequently dropped well below 0 W/m^2 (occasionally dropping below -50 W/m^2) during the nighttime hours. Daytime values were excessively high and noisy. Instrument wiring was suspected and was corrected 07/02/2003.
Measurements:	sgpsirsE10.b1: Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) sgpsirsE10.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) sgpsirs20sE10.a0: Instantaneous Upwelling Shortwave Irradiance, Inverted Pyranometer Thermopile Voltage(inst_up_short_hemisp)

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DQRID : D031027.1

Start Date	Start Time	End Date	End Time
06/29/2003	1500	08/06/2003	0500

Subject:	SGP/SIRS/E10 - Noisy UIR (upwelling longwave)data stream problem
DataStreams:	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
Description:	Beginning 6/29, upwelling longwave (UIR) values frequently exceeded quality control boundaries and appeared excessively noisy. Instrument wiring was suspected. Data remained noisy until 08/06/2003 0500GMT when the UIR data returned to normal.
Measurements:	sgpsirsE10.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Instantaneous Upwelling Pyrgeometer Dome Thermistor Temperature, Pyrgeometer(inst_up_long_dome_temp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(up_long_hemisp_min) Instantaneous Upwelling Pyrgeometer Case Thermistor Temperature, Pyrgeometer(inst_up_long_case_temp) sgpsirs20sE10.a0: Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist) Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp) Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist) sgpsirsE10.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D040831.4

Start Date	Start Time	End Date	End Time
02/20/2004	1630	04/21/2004	1425

Subject:	SGP/SIRS/E10 - Reprocess: Incorrect shortwave radiometer calibration coefficients
DataStreams:	sgpsirsE10.00, sgpsirsE10.b1
Description:	During the pyrgeometer instrument (PIR) changeout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were: downwelling diffuse (8-48), upwelling shortwave (PSP), direct normal (NIP) and downwelling shortwave (PSP) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For SGP/SIRS/E10 and each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)114.63 US(corrected) = (US/113.19)117.46 NIP(corrected)= (NIP/120.17)119.26 DS(corrected) = (DS/118.46)122.78
Measurements:	sgpsirsE10.b1: Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(up_short_hemisp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(up_short_hemisp_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard Deviation(down_short_hemisp_std) Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(up_short_hemisp_min) sgpsirsE10.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D041206.1

Start Date	Start Time	End Date	End Time
11/04/2004	1800	01/26/2005	1600

Subject:	SGP/SIRS/E10 - tracker failure
DataStreams:	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
Description:	During the night of 11/05-06 2004 the tracker failed at this location. During CM on 12/01, power cycling returned the tracker to service. However, tracker was not properly tracking in the AM. Tracker failed again sometime near 01/01/2005. CM on reloaded the tracker program and realigned the tracker on 01/26/2005 1600GMT. It has been working correctly since this time.
Measurements:	sgpsirsE10.b1: Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) sgpsirsE10.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) sgpsirs20sE10.a0: Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) Instantaneous Direct Normal Shortwave Irradiance, Pyrheliometer Thermopile Voltage(inst_direct_normal)

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DQRID : D060630.18

Start Date	Start Time	End Date	End Time
02/20/2004	1730	02/07/2006	2130

Subject:	SGP/SIRS/E10 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE10.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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in August 2006.
Measurements:	sgpsirsE10.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

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