DQRs for Session: 110804 User:anderbergCompleted: 03-03-2008

Data Quality Reports for Session: 110804 User: anderberg Completed: 03/03/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D040227.3	SGP/SIRS/E2 - Reprocess: Incorrect shortwave radiometer calibration coefficients	sgpsirsE2.00, sgpsirsE2.b1
D040229.2	SGP/SIRS/E21 - Shadowband Misalignment	sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
D040320.1	SGP/SIRS/E5 - anomalously low NIP readings	sgpsirs20sE5.a0, sgpsirsE5.00, sgpsirsE5.b1
D040320.2	SGP/SIRS/E8 - Possible Contamination of DS PSP instrument	sgpsirs20sE8.a0, sgpsirsE8.00, sgpsirsE8.b1
D040329.1	SGP/SIRS/E21 - Instrument logger time problem, Unknown	sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
D040405.2	SGP/SIRS/E7 - PSP dome contamination	sgpsirs20sE7.a0, sgpsirsE7.b1
D040831.2	SGP/SIRS/E7 - Reprocess: Incorrect shortwave radiometer calibration coefficients	sgpsirsE7.00, sgpsirsE7.b1
D040831.3	SGP/SIRS/E8 - Reprocess: Incorrect shortwave radiometer calibration coefficients	sgpsirsE8.00, sgpsirsE8.b1
D060630.10	SGP/SIRS/E2 - Reprocessed: Longwave Calibration error	sgpsirsE2.b1
D060630.11	SGP/SIRS/E3 - Reprocessed: Longwave Calibration error	sgpsirsE3.b1
D060630.12	SGP/SIRS/E4 - Reprocessed: Longwave Calibration error	sgpsirsE4.b1
D060630.13	SGP/SIRS/E5 - Reprocessed: Longwave Calibration error	sgpsirsE5.b1
D060630.14	SGP/SIRS/E6 - Reprocessed: Longwave Calibration error	sgpsirsE6.b1
D060630.15	SGP/SIRS/E7 - Reprocessed: Longwave Calibration error	sgpsirsE7.b1
D060630.16	SGP/SIRS/E8 - Reprocessed: Longwave Calibration error	sgpsirsE8.b1
D060630.17	SGP/SIRS/E9 - Reprocessed: Longwave Calibration error	sgpsirsE9.b1
D060630.26	SGP/SIRS/E20 - Reprocessed: Longwave Calibration error	sgpsirsE20.b1
D060630.27	SGP/SIRS/E21 - Reprocessed: Longwave Calibration error	sgpsirsE21.b1
D060630.28	SGP/SIRS/E22 - Reprocessed: Longwave Calibration error	sgpsirsE22.b1
D060630.29	SGP/SIRS/E24 - Reprocessed: Longwave Calibration error	sgpsirsE24.b1
D060630.30	SGP/SIRS/E27 - Reprocessed: Longwave Calibration error	sgpsirsE27.b1

DQRID : D040227.3

Start Date	Start Time	End Date	End Time
02/12/2004	1612	03/25/2004	1600

Subject:	SGP/SIRS/E2 - Reprocess: Incorrect shortwave radiometer calibration coefficients
DataStreams:	sgpsirsE2.00, sgpsirsE2.b1
Description:	During the pyrgeometer instrument (PIR) changout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements were : downwelling diffuse (DD), upwelling shortwave(US), direct normal (NIP) and downwelling shortwave(DS) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)118.11 US(corrected) = (US/113.19)118.21 NIP(corrected)= (NIP/120.17)119.08 DS(corrected) = (DS/118.46)117.33
Measurements:	sgpsirsE2.b1: Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(up_short_hemisp_std) Down-welling unshaded pyranometer voltage(down_short_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) sgpsirsE2.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D040229.2

Start Date	Start Time	End Date	End Time
02/20/2004	1300	03/03/2004	1300

Subject:	SGP/SIRS/E21 - Shadowband Misalignment
DataStreams:	sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
Description:	The NIP reported values close to zero and downwelling shortwave global and diffuse were equivalent due to tracker failure. Maintenance replaced tracker 2/27, but couldn't replace instruments until 03/02 2000 GMT due to bird poop contamination.
Measurements:	sgpsirsE21.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) sgpsirs20sE21.a0: Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal) sgpsirsE21.b1: Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)

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DQRID : D040320.1

Start Date	Start Time	End Date	End Time
03/17/2004	1843	03/28/2004	0300

Subject:	SGP/SIRS/E5 - anomalously low NIP readings
DataStreams:	sgpsirs20sE5.a0, sgpsirsE5.00, sgpsirsE5.b1
Description:	Direct normal (NIP instrument) irradiance readings fall anomalously on 3/17 18:43GMT to less than half the expected values during clear sky conditions. NIP readings returned to normal on 3/28/04 12:00. Maintenance on 3/29/04 19:48 revealed no unusual contaminents. Precipitation on 3/27 (measured by the SMOS system) probably cleared the NIP window of contaminents before scheduled maintenance.
Measurements:	sgpsirsE5.b1: Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) sgpsirs20sE5.a0: Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal) sgpsirsE5.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D040320.2

Start Date	Start Time	End Date	End Time
03/15/2004	1500	03/31/2004	1200

Subject:	SGP/SIRS/E8 - Possible Contamination of DS PSP instrument
DataStreams:	sgpsirs20sE8.a0, sgpsirsE8.00, sgpsirsE8.b1
Description:	Downwelling hemispheric shortwave values drop at about 1500 GMT under clear sky conditions, typically from about 14:00GMT to 16:00GMT. This may be due to a dirty PSP but maintenance on 03/23/04 18:11 GMT revealed no more than typical light dust. The problem was essentially undetectable by 03/31/04 12:00. The time of day that the problem exists appears to be an exagerated PSP cosine response. No obvious reason presents why the problem appeared and then disappeared within this two week period.
Measurements:	sgpsirsE8.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) sgpsirs20sE8.a0: Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile Voltage(inst_global) sgpsirsE8.b1: Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Down-welling unshaded pyranometer voltage(down_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std)

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DQRID : D040329.1

Start Date	Start Time	End Date	End Time
03/21/2004	1200	03/24/2004	0200

Subject:	SGP/SIRS/E21 - Instrument logger time problem, Unknown
DataStreams:	sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
Description:	Values of diffuse hemispheric shortwave radiation differ from derived values by at most 70 Wm^(-2). The incident appears to be isolated to 3/21, 3/22, and 3/23. An estimation of solar noon using downwelling shortwave hemispheric irradiance from the PSP shows solar noon to oocur at around 1845GMT on 3/21. Calculated solar noon occurs at E21 at 1831GMT for 3/21/2004. There appears to be a time discrepancy in the datalogger for these dates. 04/01 is the next date with enough sun to determine solar noon and compare to calculated. The data from this date appears correct. Ronald Reed [rreed@ops.sgp.arm.gov] reports the logger did not receive any reportable time updates during the late March time period. We don't know what happened during these three dates but from 3/24 on data looks acceptable.
Measurements:	sgpsirsE21.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) sgpsirs20sE21.a0: Time offset of tweaks from base_time(time_offset) Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded Pyrgeometer(inst_down_long_shaded_case_resist) Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded Pyrgeometer(inst_down_long_shaded_dome_resist) Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal) Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist) Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile Voltage(inst_global) Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp) Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist) Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) Instantaneous Upwelling Pygeometer Thermopile Voltage(inst_up_long_hemisp_tp) Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp) sgpsirsE21.b1: Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min) Instantaneous Dome Temperature(inst_up_long_dome_temp) Down-welling unshaded pyranometer voltage(down_short_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Time offset of tweaks from base_time(time_offset) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded Pyrgeometer(inst_down_long_shaded_case_temp) Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded Pyrgeometer(inst_down_long_shaded_dome_temp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(up_short_hemisp_std) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard Deviation(down_long_hemisp_shaded_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Instantaneous Case Temperature(inst_up_long_case_temp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard Deviation(up_long_hemisp_std)

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DQRID : D040405.2

Start Date	Start Time	End Date	End Time
03/30/2004	1430	04/06/2004	2100

Subject:	SGP/SIRS/E7 - PSP dome contamination
DataStreams:	sgpsirs20sE7.a0, sgpsirsE7.b1
Description:	Values of hemispheric downwelling shortwave radiation differed from derived values by 45 W/m^2 on 03/30 around 1430 GMT under clear sky conditions due to dirt on the dome. Maintenance reported cleaning heavy dust from dome on 04/06 2030 GMT.
Measurements:	sgpsirs20sE7.a0: Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile Voltage(inst_global) sgpsirsE7.b1: Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Down-welling unshaded pyranometer voltage(down_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)

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DQRID : D040831.2

Start Date	Start Time	End Date	End Time
02/20/2004	1845	04/20/2004	1825

Subject:	SGP/SIRS/E7 - Reprocess: Incorrect shortwave radiometer calibration coefficients
DataStreams:	sgpsirsE7.00, sgpsirsE7.b1
Description:	During the pyrgeometer instrument (PIR) changout 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 each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)108.50 US(corrected) = (US/113.19)110.10 NIP(corrected)= (NIP/120.17)122.26 DS(corrected) = (DS/118.46)122.56
Measurements:	sgpsirsE7.b1: Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Down-welling unshaded pyranometer voltage(down_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(up_short_hemisp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) sgpsirsE7.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D040831.3

Start Date	Start Time	End Date	End Time
02/10/2004	1825	04/20/2004	1825

Subject:	SGP/SIRS/E8 - Reprocess: Incorrect shortwave radiometer calibration coefficients
DataStreams:	sgpsirsE8.00, sgpsirsE8.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 each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)116.37 US(corrected) = (US/113.19)121.78 NIP(corrected)= (NIP/120.17)122.47 DS(corrected) = (DS/118.46)122.34
Measurements:	sgpsirsE8.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) sgpsirsE8.b1: Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(up_short_hemisp_std) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) Down-welling unshaded pyranometer voltage(down_short_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)

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DQRID : D060630.10

Start Date	Start Time	End Date	End Time
02/12/2004	1630	02/23/2005	1615

Subject:	SGP/SIRS/E2 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE2.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 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 instanteous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in September 2006.
Measurements:	sgpsirsE2.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

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DQRID : D060630.11

Start Date	Start Time	End Date	End Time
03/10/2004	1715	02/08/2006	1730

Subject:	SGP/SIRS/E3 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE3.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in March 2004. 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:	sgpsirsE3.b1: Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

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DQRID : D060630.12

Start Date	Start Time	End Date	End Time
03/10/2004	1720	02/22/2006	1615

Subject:	SGP/SIRS/E4 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE4.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in March 2004. 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 October 2006.
Measurements:	sgpsirsE4.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

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DQRID : D060630.13

Start Date	Start Time	End Date	End Time
03/10/2004	2030	02/22/2006	1817

Subject:	SGP/SIRS/E5 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE5.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in March 2004. 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 October 2006.
Measurements:	sgpsirsE5.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

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DQRID : D060630.14

Start Date	Start Time	End Date	End Time
03/11/2004	1610	02/09/2006	1553

Subject:	SGP/SIRS/E6 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE6.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in March 2004. 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 October 2006.
Measurements:	sgpsirsE6.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

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DQRID : D060630.15

Start Date	Start Time	End Date	End Time
02/20/2004	2000	02/07/2006	2005

Subject:	SGP/SIRS/E7 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE7.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 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 October 2006.
Measurements:	sgpsirsE7.b1: Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

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DQRID : D060630.16

Start Date	Start Time	End Date	End Time
02/10/2004	1845	02/21/2006	1840

Subject:	SGP/SIRS/E8 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE8.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 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 instanteous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in September 2006.
Measurements:	sgpsirsE8.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, 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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DQRID : D060630.17

Start Date	Start Time	End Date	End Time
12/17/2003	1640	02/07/2006	1730

Subject:	SGP/SIRS/E9 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE9.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 instanteous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsE9.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

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DQRID : D060630.26

Start Date	Start Time	End Date	End Time
07/23/2003	2100	02/15/2006	2030

Subject:	SGP/SIRS/E20 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE20.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in July 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 November 2006.
Measurements:	sgpsirsE20.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

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DQRID : D060630.27

Start Date	Start Time	End Date	End Time
07/23/2003	1520	02/15/2006	1515

Subject:	SGP/SIRS/E21 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE21.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in July 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 November 2006.
Measurements:	sgpsirsE21.b1: Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

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DQRID : D060630.28

Start Date	Start Time	End Date	End Time
07/23/2003	1830	02/15/2006	1741

Subject:	SGP/SIRS/E22 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE22.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in July 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:	sgpsirsE22.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

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DQRID : D060630.29

Start Date	Start Time	End Date	End Time
07/24/2003	1640	02/16/2006	1705

Subject:	SGP/SIRS/E24 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE24.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in July 2004. 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 October 2006.
Measurements:	sgpsirsE24.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

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DQRID : D060630.30

Start Date	Start Time	End Date	End Time
05/16/2003	0002	02/15/2006	1750

Subject:	SGP/SIRS/E27 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE27.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in May 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 October 2006.
Measurements:	sgpsirsE27.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

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