DQRs for Session: 110361 User:bartformanCompleted: 02-08-2008

Data Quality Reports for Session: 110361 User: bartforman Completed: 02/08/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D040322.1	SGP/SIRS/C1 - Discrepancy between measured and derived downwelling shortwave hemispheric	sgpsirs20sC1.a0, sgpsirsC1.b1
D040420.4	SGP/SIRS/E27 - incorrect tracking	sgpsirs20sE27.a0, sgpsirsE27.00, sgpsirsE27.b1
D040601.1	SGP/SIRS/E21 - Dirt on dome	sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
D040608.3	SGP/SIRS/E15 - NIP cable failure results in missing data	sgpsirs20sE15.a0, sgpsirsE15.00, sgpsirsE15.b1
D040621.3	SGP/SIRS/E7 - Reprocessed: Corrected downwelling longwave calibrations	sgpsirsE7.b1
D040706.1	SGP/SIRS/E22 - Failed NIP sensor cable	sgpsirs20sE22.a0, sgpsirsE22.00, sgpsirsE22.b1
D040903.1	SGP/SIRS/E11 - Reprocessed: Incorrect upwelling longwave calibrations	sgpsirsE11.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
D060630.18	SGP/SIRS/E10 - Reprocessed: Longwave Calibration error	sgpsirsE10.b1
D060630.19	SGP/SIRS/E11 - Reprocessed: Longwave Calibration error	sgpsirsE11.b1
D060630.20	SGP/SIRS/E12 - Reprocessed: Longwave Calibration error	sgpsirsE12.b1
D060630.21	SGP/SIRS/E13 - Reprocessed: Longwave Calibration error	sgpsirsE13.b1
D060630.22	SGP/SIRS/E15 - Reprocessed: Longwave Calibration error	sgpsirsE15.b1
D060630.23	SGP/SIRS/E16 - Reprocessed: Longwave Calibration error	sgpsirsE16.b1
D060630.24	SGP/SIRS/E18 - Reprocessed: Longwave Calibration error	sgpsirsE18.b1
D060630.25	SGP/SIRS/E19 - Reprocessed: Longwave Calibration error	sgpsirsE19.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
D060630.8	SGP/SIRS/C1 - Reprocessed: Longwave Calibration error	sgpsirsC1.b1
D060630.9	SGP/SIRS/E1 - Reprocessed: Longwave Calibration error	sgpsirsE1.b1

DQRID : D040322.1

Start Date	Start Time	End Date	End Time
03/18/2004	1500	06/10/2004	2000

Subject:	SGP/SIRS/C1 - Discrepancy between measured and derived downwelling shortwave hemispheric
DataStreams:	sgpsirs20sC1.a0, sgpsirsC1.b1
Description:	Measured values of downwelling hemispheric shortwave radiation were up to 40 W/m^2 higher than derived values during the afternoon hours. Analysis reveals that this is likely an artifact of the cosine response of the particular installed PSP coupled with typical uncertainties of this set of installed radiometers. That is, this particular instrument cluster seems to be producing cumulative errors on the high side of accepted values. The PSP contains the most uncertainty in measurement at this station. Users should use a derived value for the downwelling shortwave hemispheric irradiance (DS). Where DS = diffuse component + direct normal * cos(SZA) component described in the SIRS handbook Sec 7.2 available at: http://www.arm.gov/publications/tech_reports/handbooks/sirs_handbook.pdf
Measurements:	sgpsirsC1.b1: Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Down-welling unshaded pyranometer voltage(down_short_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) sgpsirs20sC1.a0: Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile Voltage(inst_global) Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal)

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DQRID : D040420.4

Start Date	Start Time	End Date	End Time
04/14/2004	1700	09/15/2004	1650
10/27/2004	1500	11/05/2004	1900

Subject:	SGP/SIRS/E27 - incorrect tracking
DataStreams:	sgpsirs20sE27.a0, sgpsirsE27.00, sgpsirsE27.b1
Description:	The solar tracker at E27 was not functioning properly. The problem affected tracker mounted instruments: downwelling diffuse 8-48 and direct normal pyrheliometer NIP. After tracker adjustment on 4/14/2004 1700GMT the tracker stopped tracking properly during afternoon hours. Attempts to correct tracker operation throughout the failure period resulted in variations on incorrect tracker operation. No replacement tracker was available. After adjustment on 9/15/2004 the tracker problem was resolved. It is unclear what, other than typical az and zen tracker software changes by field techs, corrected the problem. This problem period corresponds to the first time range specified (4/14 to 9/15). On 10/27/2004 a replacement tracker was installed at E27. Technical difficulties kept tracker out of service until 11/05/2004. The replacement tracker at E27 was put into serice by the field techs on 11/05/2004 1830GMT. The tracker has been tracking correctly since this time. This problem period corresponds to the second time range (10/27 to 11/05).
Measurements:	sgpsirsE27.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) sgpsirsE27.b1: Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) 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) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) sgpsirs20sE27.a0: Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal)

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DQRID : D040601.1

Start Date	Start Time	End Date	End Time
05/28/2004	1500	06/09/2004	1342

Subject:	SGP/SIRS/E21 - Dirt on dome
DataStreams:	sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
Description:	Measured downwelling shortwave values differed from calculated (direct + diffuse) by +/-100 W/m^2 in the afternoon. Pattern of differences is indicative of a dirty downwelling shortwave dome. Maintenance on 6/9 cleaned water spots on the dome. Other downwelling instruments may have also been dirty during this period.
Measurements:	sgpsirsE21.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) sgpsirs20sE21.a0: Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal) Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile Voltage(inst_global) sgpsirsE21.b1: Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) 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) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) 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, Minima(short_direct_normal_min)

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DQRID : D040608.3

Start Date	Start Time	End Date	End Time
06/03/2004	1122	06/08/2004	1700

Subject:	SGP/SIRS/E15 - NIP cable failure results in missing data
DataStreams:	sgpsirs20sE15.a0, sgpsirsE15.00, sgpsirsE15.b1
Description:	The NIP began reporting -9999 (missing) for all direct normal downwelling shortwave radiation. Maintenance 6/8 revealed a broken cable. Cable was repaired and NIP data returned to normal.
Measurements:	sgpsirsE15.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported) sgpsirsE15.b1: Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) sgpsirs20sE15.a0: Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal)

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DQRID : D040621.3

Start Date	Start Time	End Date	End Time
04/20/2004	1825	06/29/2004	1915

Subject:	SGP/SIRS/E7 - Reprocessed: Corrected downwelling longwave calibrations
DataStreams:	sgpsirsE7.b1
Description:	While attempting to correct calibration coefficients (see D040831.2) a new datalogger program was loaded which applied the wrong serial number and calibration coefficients to the downwelling longwave measurement. The data were reprocessed in September 2006 with the correct downwelling longwave calibrations and archived on 20061003.
Measurements:	sgpsirsE7.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard Deviation(down_long_hemisp_shaded_std) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)

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DQRID : D040706.1

Start Date	Start Time	End Date	End Time
06/30/2004	0156	07/07/2004	1800

Subject:	SGP/SIRS/E22 - Failed NIP sensor cable
DataStreams:	sgpsirs20sE22.a0, sgpsirsE22.00, sgpsirsE22.b1
Description:	The suntracker was driven past it optical limit switch and pulled the direct normal (NIP) instrument cable from its connector.
Measurements:	sgpsirs20sE22.a0: Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal) sgpsirsE22.b1: 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(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) sgpsirsE22.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D040903.1

Start Date	Start Time	End Date	End Time
05/04/2004	0000	06/22/2004	1855

Subject:	SGP/SIRS/E11 - Reprocessed: Incorrect upwelling longwave calibrations
DataStreams:	sgpsirsE11.b1
Description:	Incorrect calibration coefficients were applied to the upwelling longwave measurements due to an error in the instrument configuration file. The data have been reprocessed to apply corrected calibrations. The reprocessed data were archived in August 2006.
Measurements:	sgpsirsE11.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard Deviation(up_long_hemisp_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 : D060630.18

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 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 August 2006.
Measurements:	sgpsirsE10.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 : D060630.19

Start Date	Start Time	End Date	End Time
02/17/2004	1753	02/14/2006	2016

Subject:	SGP/SIRS/E11 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE11.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 August 2006.
Measurements:	sgpsirsE11.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 : D060630.20

Start Date	Start Time	End Date	End Time
07/22/2003	1640	02/14/2006	1710

Subject:	SGP/SIRS/E12 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE12.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 October 2006.
Measurements:	sgpsirsE12.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 : D060630.21

Start Date	Start Time	End Date	End Time
12/11/2003	1935	02/16/2006	1905

Subject:	SGP/SIRS/E13 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE13.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 October 2006.
Measurements:	sgpsirsE13.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 : D060630.22

Start Date	Start Time	End Date	End Time
07/22/2003	1650	02/14/2006	1806

Subject:	SGP/SIRS/E15 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE15.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 October 2006.
Measurements:	sgpsirsE15.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

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DQRID : D060630.23

Start Date	Start Time	End Date	End Time
07/23/2003	1605	02/15/2006	1533

Subject:	SGP/SIRS/E16 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE16.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 October 2006.
Measurements:	sgpsirsE16.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 : D060630.24

Start Date	Start Time	End Date	End Time
07/22/2003	2200	02/14/2006	2100

Subject:	SGP/SIRS/E18 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE18.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 October 2006.
Measurements:	sgpsirsE18.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

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DQRID : D060630.25

Start Date	Start Time	End Date	End Time
07/24/2003	1600	02/16/2006	1558

Subject:	SGP/SIRS/E19 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE19.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 October 2006.
Measurements:	sgpsirsE19.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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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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DQRID : D060630.8

Start Date	Start Time	End Date	End Time
12/11/2003	1950	02/16/2006	1901

Subject:	SGP/SIRS/C1 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsC1.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 October 2006.
Measurements:	sgpsirsC1.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

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DQRID : D060630.9

Start Date	Start Time	End Date	End Time
02/10/2004	2055	02/21/2006	2007

Subject:	SGP/SIRS/E1 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE1.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:	sgpsirsE1.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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END OF DATA