DQRs for Session: 115964 User:egutmannCompleted: 11-24-2008

Data Quality Reports for Session: 115964 User: egutmann Completed: 11/24/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D060309.1	SGP/SIRS/E1 - Reprocess: incorrect calibration coefficients for US (upwelling shortwave) instrument	sgpsirsE1.00, sgpsirsE1.b1
D060331.2	SGP/SIRS/E1 - Intermittantly missing downwelling diffuse	sgpsirs20sE1.a0, sgpsirsE1.00, sgpsirsE1.b1
D060403.4	SGP/SIRS/E20 - Instrument noise problem	sgpsirs20sE20.a0, sgpsirsE20.00, sgpsirsE20.b1
D060405.1	SGP/SIRS/E24 - Reprocess: Incorrect calibration coefficients	sgpsirs20sE24.a0, sgpsirsE24.00, sgpsirsE24.b1
D060424.1	SGP/SIRS/E21 - Roosting birds in field of view	sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
D060523.1	SGP/SIRS/E8 - Instrument cable problem	sgpsirs20sE8.a0, sgpsirsE8.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
D060630.21	SGP/SIRS/E13 - Reprocessed: Longwave Calibration error	sgpsirsE13.b1
D060630.22	SGP/SIRS/E15 - Reprocessed: Longwave Calibration error	sgpsirsE15.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
D060630.9	SGP/SIRS/E1 - Reprocessed: Longwave Calibration error	sgpsirsE1.b1
D060703.1	SGP/SIRS/E3 - Reprocess: Wrong Calibration Coefficients	sgpsirs20sE3.a0, sgpsirsE3.b1
D060718.2	SGP/SIRS/E9 - Tracker Failure	sgpsirs20sE9.a0, sgpsirsE9.00, sgpsirsE9.b1
D061205.2	SGP/SIRS/E24 - Spikes in data	sgpsirs20sE24.a0, sgpsirsE24.b1
D061208.1	SGP/SIRS/E7 - Instrument noise	sgpsirs20sE7.a0, sgpsirsE7.b1
D070320.1	SGP/SIRS/E22 - Reprocess: Incorrect calibration coefficients	sgpsirs20sE22.a0, sgpsirsE22.00, sgpsirsE22.b1
D070411.1	SGP/SIRS/E3 - Instrument leveling and tracker problem	sgpsirs20sE3.a0, sgpsirsE3.b1

DQRID : D060309.1

Start Date	Start Time	End Date	End Time
02/21/2006	2008	03/07/2006	1950

Subject:	SGP/SIRS/E1 - Reprocess: incorrect calibration coefficients for US (upwelling shortwave) instrument
DataStreams:	sgpsirsE1.00, sgpsirsE1.b1
Description:	During the changeover from 4 to 1 coefficient for the PIRs at SIRS/E1 (PIF) the datalogger program was programmed with the wrong calibration coefficient and serial number for the US PSP instrument measuring the Upwelling Hemispheric Shortwave radiation. The calibration coefficient was 114.43 W/m2/mV (instrument 30618F3) when it should have been 104.47W/m2/mV (instrument 29618F3)
Measurements:	sgpsirsE1.b1: Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(up_short_hemisp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) sgpsirsE1.00: null(Raw data stream - documentation not supported)

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DQRID : D060331.2

Start Date	Start Time	End Date	End Time
10/26/2005	1630	04/04/2006	2005

Subject:	SGP/SIRS/E1 - Intermittantly missing downwelling diffuse
DataStreams:	sgpsirs20sE1.a0, sgpsirsE1.00, sgpsirsE1.b1
Description:	Starting on or about 10/26/2005 the downwelling diffuse hemispheric irradiance (Eppley 8-48) instrument had intermittant missing values. Technicians found a loose wire on the instrument connector and repaired it on 4/4/2006. Use global shortwave hemispheric (PSP) component - normal incident component (CosZA*NIP) to calulate diffuse component. Comparison of absolute difference between actual and computed diffuse component values and diffuse standard deviations > 1-2 W/m2 can help filter the noisy diffuse data. There is no standard method.
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: null(Raw data stream - documentation not supported)

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DQRID : D060403.4

Start Date	Start Time	End Date	End Time
08/20/2005	1930	04/12/2006	2040

Subject:	SGP/SIRS/E20 - Instrument noise problem
DataStreams:	sgpsirs20sE20.a0, sgpsirsE20.00, sgpsirsE20.b1
Description:	Afer recovery from lightening strike the upwelling longwave SIRS Eppley PIR (UIR) has had noise on both dome and case thermistor measurements. On 4/12/2006 techs replaced defective j-panel at base of tower.
Measurements:	sgpsirsE20.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max) Instantaneous Case Temperature(inst_up_long_case_temp) Instantaneous Dome Temperature(inst_up_long_dome_temp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) sgpsirs20sE20.a0: Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp) Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist) Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist) sgpsirsE20.00: null(Raw data stream - documentation not supported)

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DQRID : D060405.1

Start Date	Start Time	End Date	End Time
02/16/2006	1705	04/13/2006	1715

Subject:	SGP/SIRS/E24 - Reprocess: Incorrect calibration coefficients
DataStreams:	sgpsirs20sE24.a0, sgpsirsE24.00, sgpsirsE24.b1
Description:	During the PIR coefficient change from 4/coeffs to 1/coeff, the downwelling diffuse hemispheric instrument (Eppley 8-48) coefficient was inadvertently changed to 122.85 and should have been 112.85 W/m2/mV. Perform the following calculation to correct the data, DD=downwelling diffuse instrument: DD(new)[W/m2]=( DD(old)[W/m2]/122.85[W/m2\mV] )* 112.85[W/m2/mV]
Measurements:	sgpsirsE24.00: null(Raw data stream - documentation not supported) sgpsirs20sE24.a0: Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) sgpsirsE24.b1: Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)

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DQRID : D060424.1

Start Date	Start Time	End Date	End Time
04/07/2006	1200	05/31/2006	1700

Subject:	SGP/SIRS/E21 - Roosting birds in field of view
DataStreams:	sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
Description:	The RBDD (Rotating Bird Deterrent Device) installed at E21 to prevent turkey vultures from roosting on the instrument boom failed resulting in noisy NIP (Short Direct Normal) and PSP (Short Global Hemispheric) data and a spike occurring around 2230 UTC everyday due to obstruction of the field of view. Problem is intermittant due to moving birds. Use data with discretion. Follow ARM (DQMS3) flag recommendations for QC flags 02 or 03 found in section 5.1.4 of the SIRS handbook: http://www.arm.gov/publications/tech_reports/handbooks/sirs_handbook.pdf
Measurements:	sgpsirsE21.00: null(Raw data stream - documentation not supported) sgpsirs20sE21.a0: Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile Voltage(inst_global) Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal) sgpsirsE21.b1: Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Down-welling unshaded pyranometer voltage(down_short_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) 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, Standard Deviation(down_short_hemisp_std)

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DQRID : D060523.1

Start Date	Start Time	End Date	End Time
05/22/2006	1300	05/30/2006	2020

Subject:	SGP/SIRS/E8 - Instrument cable problem
DataStreams:	sgpsirs20sE8.a0, sgpsirsE8.b1
Description:	The short_direct_normal, down_short_diffuse_hemisp and up_short_hemisp data are missing or are spiking to negative numbers. On 20060530, technicians discovered cows had chewed on the instrument cables.
Measurements:	sgpsirs20sE8.a0: Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp) Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal) 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) 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, 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 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 : D060630.11

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 : D060630.21

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 : D060630.26

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 : D060630.9

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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DQRID : D060703.1

Start Date	Start Time	End Date	End Time
06/14/2006	1612	07/12/2006	1830

Subject:	SGP/SIRS/E3 - Reprocess: Wrong Calibration Coefficients
DataStreams:	sgpsirs20sE3.a0, sgpsirsE3.b1
Description:	No data were collected from 6/7/2006 0000 to 6/14/2006 1612 due to hardware problems. When data resumed on 6/14, ALL calibration coefficients and serial numbers were for different instruments possibly due to incorrect program loaded on storage module. Correct program reloaded by PM/CM techs on 7/12 1830GMT Shortwave data can be corrected with a simple multiplier as shown below. Longwave data must be reprocessed from temperature and netIR data. The data can be recalibrated as follows: First divide value by incorrectly applied cal coeff (first number) then multiply by correct cal coeff (second number). down_short_diffuse_hemisp 109.52 110.31 up_short_hemisp 111.61 109.80 short_direct_normal 115.73 118.82 down_short_hemisp 122.47 117.34 up_long_netir 0.26525 0.2564 down_long_netir 0.27173 0.2695 Reapply cal coeffs below using up_long_netIR(uV), inst_up_long_dome_temp(K), inst_up_long_dome_temp(K) using procedure described in SIRS instrument manual. up_long_hemisp k0 0.00 W/m^2 k1 0.2564 W/(m^2uV) k2 1.00 unitless k3 -4.00 unitless kr 0.000 K/uV Reapply cal coeffs below using down_long_netIR(uV),inst_down_long_dome_temp (K),inst_down_long_dome_temp(K). down_long_hemisp_shaded k0 0.00 W/m^2 k1 0.2695 W/(m^2uV) k2 1.00 unitless k3 -4.00 unitless kr 0.000 K/uV
Measurements:	sgpsirs20sE3.a0: Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp) Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile Voltage(inst_global) Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal) Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded Pyrgeometer(inst_down_long_shaded_case_resist) Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist) Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp) Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded Pyrgeometer(inst_down_long_shaded_dome_resist) 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 Pyrgeometer Thermopile(inst_up_long_hemisp_tp) sgpsirsE3.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min) Instantaneous Case Temperature(inst_up_long_case_temp) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Instantaneous Dome Temperature(inst_up_long_dome_temp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded Pyrgeometer(inst_down_long_shaded_case_temp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard Deviation(down_long_hemisp_shaded_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard Deviation(up_long_hemisp_std) 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) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(up_short_hemisp_std) Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded Pyrgeometer(inst_down_long_shaded_dome_temp) Down-welling unshaded pyranometer voltage(down_short_hemisp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)

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DQRID : D060718.2

Start Date	Start Time	End Date	End Time
07/12/2006	1100	07/21/2006	1635

Subject:	SGP/SIRS/E9 - Tracker Failure
DataStreams:	sgpsirs20sE9.a0, sgpsirsE9.00, sgpsirsE9.b1
Description:	On July 12th the SIRS tracker failed to wake up that morning. On the 21st of July CM repaired the tracker.
Measurements:	sgpsirs20sE9.a0: Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile Voltage(inst_direct_normal) Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer Thermopile Voltage(inst_diffuse) sgpsirsE9.b1: Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal) 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, Maxima(short_direct_normal_max) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) sgpsirsE9.00: null(Raw data stream - documentation not supported)

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DQRID : D061205.2

Start Date	Start Time	End Date	End Time
11/29/2006	0600	12/05/2006	1830

Subject:	SGP/SIRS/E24 - Spikes in data
DataStreams:	sgpsirs20sE24.a0, sgpsirsE24.b1
Description:	The down_short_hemisp, down_long_hemisp, and upwelling_longwave showed large spikes (an order of magnitude) in data. Problem corrected itself on 12/5 before the site visit on 12/7. It is not known why the problem did not return but instruments affected were on the multiplexer. Maintenance reports it was not replaced.
Measurements:	sgpsirs20sE24.a0: Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded Pyrgeometer(inst_down_long_shaded_dome_resist) Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp) Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile Voltage(inst_global) Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp) Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp) Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist) Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded Pyrgeometer(inst_down_long_shaded_case_resist) Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist) sgpsirsE24.b1: Instantaneous Dome Temperature(inst_up_long_dome_temp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min) 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) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std) 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, Maxima(up_long_hemisp_max) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard Deviation(down_long_hemisp_shaded_std) 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) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded Pyrgeometer(inst_down_long_shaded_case_temp) Instantaneous Case Temperature(inst_up_long_case_temp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

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DQRID : D061208.1

Start Date	Start Time	End Date	End Time
10/31/2006	0600	12/12/2006	2105

Subject:	SGP/SIRS/E7 - Instrument noise
DataStreams:	sgpsirs20sE7.a0, sgpsirsE7.b1
Description:	Beginning around 10/31, the E7 UIR experienced an increasingly noisy signal. The thermopile signal was noisy, but case and dome thermistors are well behaved. Maintenance reseated the UIR cable connections on 12/12/2006 which effectively eliminated the UIR noise. The thermopile data from the upwelling pyrgeometer is noisy with resulting irradiance variations of up to 5 W/m2, but doesn't appear to have a bias.
Measurements:	sgpsirs20sE7.a0: Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp) Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist) Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist) sgpsirsE7.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard Deviation(up_long_hemisp_std) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp) Instantaneous Dome Temperature(inst_up_long_dome_temp) Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min) Instantaneous Case Temperature(inst_up_long_case_temp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

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DQRID : D070320.1

Start Date	Start Time	End Date	End Time
07/06/2006	1722	04/12/2007	1810

Subject:	SGP/SIRS/E22 - Reprocess: Incorrect calibration coefficients
DataStreams:	sgpsirs20sE22.a0, sgpsirsE22.00, sgpsirsE22.b1
Description:	NIP (short_direct_normal) 29541E6 had an incorrect calibration coefficient in the logger program. 128.97 should have been 126.67 [W/m2/mV].
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: null(Raw data stream - documentation not supported)

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DQRID : D070411.1

Start Date	Start Time	End Date	End Time
10/23/2006	0000	04/18/2007	1820

Subject:	SGP/SIRS/E3 - Instrument leveling and tracker problem
DataStreams:	sgpsirs20sE3.a0, sgpsirsE3.b1
Description:	Asymmetry between measured downwelling shortwave and derived downwelling shortwave hemispheric in the afternoon began late in fall and became more apparent as the sun moved higher in spring. This can happen when the PSP is unlevel or when the NIP is not tracking well. The PSP level was corrected and the clock on tracker was reset. Mentor suspects PSP was unlevel during this time range causing the discrepancy in measured vs. calculated downwelling shortwave hemispheric data.
Measurements:	sgpsirs20sE3.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) sgpsirsE3.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, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard Deviation(down_short_hemisp_std) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std) 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, Ventilated Pyranometer, Minima(down_short_hemisp_min) Down-welling unshaded pyranometer voltage(down_short_hemisp) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)

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