DQRs for Session: 110826 User:anderbergCompleted: 03-03-2008

Data Quality Reports for Session: 110826 User: anderberg Completed: 03/03/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D041206.1	SGP/SIRS/E10 - tracker failure	sgpsirs20sE10.a0, sgpsirsE10.00, sgpsirsE10.b1
D050106.4	SGP/SIRS/C1 - Reprocess: UIR/DIR Incorrect calibration coefficients	sgpsirsC1.00, sgpsirsC1.b1
D050205.1	SGP/SIRS/E1 - broken cable on DSDH (aka DD) measurment instrument - Eppley 8-48.	sgpsirs20sE1.a0, sgpsirsE1.00, sgpsirsE1.b1
D050206.2	SGP/SIRS/C1 - Monthly Summary	sgpsirsC1.b1
D050206.3	SGP/SIRS/E13 - Monthly Report	sgpsirsE13.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
D060630.8	SGP/SIRS/C1 - Reprocessed: Longwave Calibration error	sgpsirsC1.b1
D060630.9	SGP/SIRS/E1 - Reprocessed: Longwave Calibration error	sgpsirsE1.b1

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:	sgpsirs20sE10.a0, sgpsirsE10.00, sgpsirsE10.b1
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, Pyrgeometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Shortwave Direct Normal Irradiance, Pyrgeometer(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, Pyheliometer Thermopile Voltage(inst_direct_normal)

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DQRID : D050106.4

Start Date	Start Time	End Date	End Time
09/27/2004	1429	01/07/2005	1623

Subject:	SGP/SIRS/C1 - Reprocess: UIR/DIR Incorrect calibration coefficients
DataStreams:	sgpsirsC1.00, sgpsirsC1.b1
Description:	It appears the datalogger program at SIRS/C1 was automatically updated, unbeknownst to anyone, on 9/27/20041423GMT with an older program with incorrect UIR and DIR calibration coefficients. The correct and incorrect cal coeffs for the UIR and DIR pyrgeometers during this DQR period were: incorrectUIR correctUIR K0 -12.84 -13.00 K1 .2250 0.2573 K2 1.024 1.024 K3 -1.9280 -1.8050 incorrectDIR correctDIR K0 -13.15 -26.89 K1 0.2374 0.2967 K2 1.0260 1.0560 K3 -2.478 -3.3080
Measurements:	sgpsirsC1.b1: Instantaneous Case Temperature(inst_up_long_case_temp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard Deviation(down_long_hemisp_shaded_std) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Instantaneous Dome Temperature(inst_up_long_dome_temp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard Deviation(up_long_hemisp_std) Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded Pyrgeometer(inst_down_long_shaded_dome_temp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded Pyrgeometer(inst_down_long_shaded_case_temp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min) sgpsirsC1.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D050205.1

Start Date	Start Time	End Date	End Time
12/30/2004	2100	02/08/2005	2055

Subject:	SGP/SIRS/E1 - broken cable on DSDH (aka DD) measurment instrument - Eppley 8-48.
DataStreams:	sgpsirs20sE1.a0, sgpsirsE1.00, sgpsirsE1.b1
Description:	Occasionally, the downwelling shortwave diffuse hemispheric (DSDH) readings spike to unreasonably low levels, causing derived downwelling shortwave hemispheric (DSH) readings to spike well below the actual DSH readings. Technicians repaired the DSDH instument (an Eppley 8-48) cable on 02/08/2005 2055GMT. There have been no dropouts since that time.
Measurements:	sgpsirs20sE1.a0: Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) sgpsirsE1.b1: 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) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) sgpsirsE1.00: Raw data stream - documentation not supported(Raw data stream - documentation not supported)

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DQRID : D050206.2

Start Date	Start Time	End Date	End Time
12/01/2004	0000	01/01/2005	0000

Subject:	SGP/SIRS/C1 - Monthly Summary
DataStreams:	sgpsirsC1.b1
Description:	dominant problem here is the daytime 3 component problem. Direct and Diffuse are always too high and Global is too low. The problem occurs around the time that the testing regime switches from twilight to daytime testing regimes or from daytime to twilight. The flags occur in significant numbers on the 1st - 5th, 8th - 20th, 24th - 28th, 30th, and 31st. The failures vary in magnitude and duration. The worst flags for a particular day is typically high level yellow, with respect to this problem. Global goes below daytime empirical limits on both the 5th and 6th for substantial periods of time. Diffuse also goes below daytime empirical limits on the 6th in the evening. Upwelling Longwave is below empirical limits on the 24th. This may not be a problem, as many sites exhibited the same problem on the same night. Exceptionally cold temperatures may be the cause. Direct also exceeds its daytime empirical limit on the 1st, 4th, 10th, 13th, 14th, and 20th. This occurs at the changeover from medium to high air mass and does not last for longer than 30 minutes.
Measurements:	sgpsirsC1.b1: Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Down-welling unshaded pyranometer voltage(down_short_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)

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DQRID : D050206.3

Start Date	Start Time	End Date	End Time
12/01/2004	0000	01/01/2005	0000

Subject:	SGP/SIRS/E13 - Monthly Report
DataStreams:	sgpsirsE13.b1
Description:	:Data quality this site-month is good. The offset for the Global PSP is about -7 W/m^2. The dominant problem here is the daytime 3 component problem. Direct and Diffuse are always too high and Global is too low. The problem occurs around the time that the testing regime switches from twilight to daytime testing regimes or from daytime to twilight. The flags occur in significant numbers on the 1st - 5th, 7th - 20th, 24th - 28th, 30th, and 31st. The failures vary in magnitude and duration. The worst flags for a particular respect to this problem. Global goes below daytime empirical limits on both the 5th and 6th for substantial periods of time. Diffuse also goes below daytime empirical limits on the 6th in the afternoon. Upwelling Longwave is below empirical limits on the 24th. This may not be a problem, as many sites exhibited the same problem on the same night. Exceptionally cold temperatures may be the cause.
Measurements:	sgpsirsE13.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Down-welling unshaded pyranometer voltage(down_short_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)

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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 : D060630.8

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