DQRs for Session: 111876 User:ql_dataCompleted: 05-09-2008

Data Quality Reports for Session: 111876 User: ql_data Completed: 05/09/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D030301.1	NSA/GNDRAD/C1 - No power to IRT	nsagndrad60sC1.a1, nsagndrad60sC1.b1
D031216.1	NSA/GNDRAD/C1 - IRT cable failure	nsagndrad60sC1.b1
D031216.2	NSA/GNDRAD/C1 - IRT returned to vendor	nsagndrad60sC1.b1
D040919.1	NSA/GNDRAD/C1 - IRT power failure	nsagndrad60sC1.b1
D060209.4	NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors	nsagndrad20sC1.a0, nsagndrad60sC1.b1, nsagndradC1.00
D060630.39	NSA/GNDRAD/C1 - Reprocess: Longwave Calibration error	nsagndrad60sC1.b1
D071025.3	NSA/GNDRAD/C1 - Reprocessed: Incorrect calibration coefficient	nsagndrad20sC1.a0, nsagndrad60sC1.b1

DQRID : D030301.1

Start Date	Start Time	End Date	End Time
09/24/2002	1725	11/16/2002	0003

Subject:	NSA/GNDRAD/C1 - No power to IRT
DataStreams:	nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:	The data logger failed to supply power to the IRT.
Measurements:	nsagndrad60sC1.b1: Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) Effective Surface (Skin) Temperature(sfc_ir_temp) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std) nsagndrad60sC1.a1: Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Effective Surface (Skin) Temperature(sfc_ir_temp) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D031216.1

Start Date	Start Time	End Date	End Time
05/27/2003	1400	09/11/2003	1906

Subject:	NSA/GNDRAD/C1 - IRT cable failure
DataStreams:	nsagndrad60sC1.b1
Description:	The IRT signal became very noisy and the problem was traced to the cable (after the instrument was returned to the vendor for diagnosis). The problem started occurring when ice surrounding the cable began to melt. The cable was repaired and the instrument reinstalled.
Measurements:	nsagndrad60sC1.b1: Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) Effective Surface (Skin) Temperature(sfc_ir_temp) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D031216.2

Start Date	Start Time	End Date	End Time
09/11/2003	1906	10/15/2003	0015

Subject:	NSA/GNDRAD/C1 - IRT returned to vendor
DataStreams:	nsagndrad60sC1.b1
Description:	The IRT was returned to the vendor for diagnosis. It was found to be operating as expected and the signal noise problem was traced to the cable. The cable was repaired and the instrument reinstalled.
Measurements:	nsagndrad60sC1.b1: Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) Effective Surface (Skin) Temperature(sfc_ir_temp) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D040919.1

Start Date	Start Time	End Date	End Time
09/15/2004	0000	09/22/2004	0552

Subject:	NSA/GNDRAD/C1 - IRT power failure
DataStreams:	nsagndrad60sC1.b1
Description:	After performing corrective maintenance which involved turning off power to the GNDRAD instruments and data logger, power to the IRT was not restored. The problem was corrected by replacing the data logger.
Measurements:	nsagndrad60sC1.b1: Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) Effective Surface (Skin) Temperature(sfc_ir_temp) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D060209.4

Start Date	Start Time	End Date	End Time
02/07/2006	0910	02/07/2006	2350

Subject:	NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors
DataStreams:	nsagndrad20sC1.a0, nsagndrad60sC1.b1, nsagndradC1.00
Description:	During the power outage the upwelling global measurement from the PSP instrument shows a slight increase from -5 to +0 W/m2. This is due to removal of thermal offsets induced by the AC heater during the power outage. This heater is installed within the PSP ventilator - it is necessary for the NSA/C1 climate. The upwelling longwave PIR instrument is unaffected due to case and dome temperature corrections. The IRT is AC powered and was not operational during this time period.
Measurements:	nsagndradC1.00: null(Raw data stream - documentation not supported) nsagndrad20sC1.a0: Instantaneous Surface Infra-Red Signal(inst_sfc_ir_signal) nsagndrad60sC1.b1: Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min) Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Surface Infra-Red Temperature Minima(sfc_ir_temp_min) Effective Surface (Skin) Temperature(sfc_ir_temp) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(up_short_hemisp_std) Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp) Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D060630.39

Start Date	Start Time	End Date	End Time
11/04/2004	1600	12/21/2005	1855

Subject:	NSA/GNDRAD/C1 - Reprocess: Longwave Calibration error
DataStreams:	nsagndrad60sC1.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 are being reprocessing to remove the calibration bias. Note, this also affected standard deviation, maximum and minimum data fields.
Measurements:	nsagndrad60sC1.b1: Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

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DQRID : D071025.3

Start Date	Start Time	End Date	End Time
10/04/2007	0130	10/25/2007	2149

Subject:	NSA/GNDRAD/C1 - Reprocessed: Incorrect calibration coefficient
DataStreams:	nsagndrad20sC1.a0, nsagndrad60sC1.b1
Description:	Installed Gndrad PSP (upwelling shortwave hemispheric irradiance) had calibration coefficient RS applied when it should have used Rsc. ARM is using IR corrected coefficients Rsc@45 and CFc@45 for PSPs deployed at all facilities. PSP #32012F3 should use RSc@45=109.39 and not Rs@45=110.97. Reprocessed to correct upwelling shortwave hemispheric irradiance (US) by: US(new) = (US(old) / 110.97 ) * 109.39 Reprocessing completed March 2008.
Measurements:	nsagndrad20sC1.a0: Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp) nsagndrad60sC1.b1: Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) 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)

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