DQRs for Session: 110229 User:anderbergCompleted: 02-01-2008

Data Quality Reports for Session: 110229 User: anderberg Completed: 02/01/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D030301.1	NSA/GNDRAD/C1 - No power to IRT	nsagndrad60sC1.a1, nsagndrad60sC1.b1
D030819.2	NSA/SKYRAD/C1 - IRT failed	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
D030820.1	NSA/SKYRAD/C1 - IRT incorrectly configured	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
D030821.2	NSA/SKYRAD/C1 - IRT incorrect min/max value	nsaskyrad60sC1.b1
D031007.2	NSA/SKYRAD/C1 - IRT measurements during precipitation events	nsaskyrad60sC1.b1
D031216.1	NSA/GNDRAD/C1 - IRT cable failure	nsagndrad60sC1.b1
D031216.2	NSA/GNDRAD/C1 - IRT returned to vendor	nsagndrad60sC1.b1
D040213.4	NSA/SKYRAD/C1 - Downwelling IRT bias	nsaskyrad60sC1.b1
D040421.2	NSA/SKYRAD/C1 - Tracker Inoperative	nsaskyrad60sC1.b1
D040421.3	NSA/SKYRAD/C1 - itermittant IRT bias	nsaskyrad60sC1.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 : D030819.2

Start Date	Start Time	End Date	End Time
04/05/2002	2330	06/27/2002	1920

Subject:	NSA/SKYRAD/C1 - IRT failed
DataStreams:	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
Description:
Measurements:	nsaskyrad60sC1.a1: Sky Infra-Red Temperature(sky_ir_temp) Standard Deviation of Sky Infra Red Temperature(sky_ir_temp_std) Sky Infra Red Temperature Maxima(sky_ir_temp_max) Sky Infra Red Temperature Minima(sky_ir_temp_min) nsaskyrad60sC1.b1: Sky Infra Red Temperature Minima(sky_ir_temp_min) Sky Infra Red Temperature Maxima(sky_ir_temp_max) Standard Deviation of Sky Infra Red Temperature(sky_ir_temp_std) Sky Infra-Red Temperature(sky_ir_temp)

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DQRID : D030820.1

Start Date	Start Time	End Date	End Time
06/27/2002	1920	07/10/2002	1900

Subject:	NSA/SKYRAD/C1 - IRT incorrectly configured
DataStreams:	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
Description:	The IRT was removed for repair and replaced with a spare that was not configured properly. Data are incorrect.
Measurements:	nsaskyrad60sC1.a1: Sky Infra-Red Temperature(sky_ir_temp) Standard Deviation of Sky Infra Red Temperature(sky_ir_temp_std) Sky Infra Red Temperature Maxima(sky_ir_temp_max) Sky Infra Red Temperature Minima(sky_ir_temp_min) nsaskyrad60sC1.b1: Sky Infra Red Temperature Minima(sky_ir_temp_min) Sky Infra Red Temperature Maxima(sky_ir_temp_max) Standard Deviation of Sky Infra Red Temperature(sky_ir_temp_std) Sky Infra-Red Temperature(sky_ir_temp)

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DQRID : D030821.2

Start Date	Start Time	End Date	End Time
04/01/2001	0000	03/03/2003	2359

Subject:	NSA/SKYRAD/C1 - IRT incorrect min/max value
DataStreams:	nsaskyrad60sC1.b1
Description:	The values of valid_min and valid_max for field sky_ir_temp were incorrectly assigned to -49.7 and +50.0 C, respectively. The actual values should be -60 and +40 C.
Measurements:	nsaskyrad60sC1.b1: Sky Infra Red Temperature Minima(sky_ir_temp_min) Sky Infra Red Temperature Maxima(sky_ir_temp_max) Sky Infra-Red Temperature(sky_ir_temp)

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DQRID : D031007.2

Start Date	Start Time	End Date	End Time
04/01/1999	0000	03/28/2003	0200

Subject:	NSA/SKYRAD/C1 - IRT measurements during precipitation events
DataStreams:	nsaskyrad60sC1.b1
Description:	The IRT measurement of sky/cloud temperature was in question during precipitation events because rain or snow could accumulate in the upward-pointed lens barrel. This was corrected by reorienting the IRT to measure the sky temperature as reflected by a gold mirror.
Measurements:	nsaskyrad60sC1.b1: Sky Infra Red Temperature Minima(sky_ir_temp_min) Sky Infra Red Temperature Maxima(sky_ir_temp_max) Standard Deviation of Sky Infra Red Temperature(sky_ir_temp_std) Sky Infra-Red Temperature(sky_ir_temp)

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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 : D040213.4

Start Date	Start Time	End Date	End Time
12/11/2003	1200	01/09/2004	2120

Subject:	NSA/SKYRAD/C1 - Downwelling IRT bias
DataStreams:	nsaskyrad60sC1.b1
Description:	The downwelling IRT was measuring higher sky/cloud temperatures than the AERI. The problem was corrected when the mirror was replaced.
Measurements:	nsaskyrad60sC1.b1: Sky Infra Red Temperature Minima(sky_ir_temp_min) Sky Infra Red Temperature Maxima(sky_ir_temp_max) Standard Deviation of Sky Infra Red Temperature(sky_ir_temp_std) Sky Infra-Red Temperature(sky_ir_temp)

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DQRID : D040421.2

Start Date	Start Time	End Date	End Time
11/10/2003	0000	02/16/2004	0230

Subject:	NSA/SKYRAD/C1 - Tracker Inoperative
DataStreams:	nsaskyrad60sC1.b1
Description:	A blown fuse resulted in the tracker not shading the PIR and B&W and the NIP not following the sun.
Measurements:	nsaskyrad60sC1.b1: Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std) Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max) Downwelling Shortwave Hemispheric Irradiance, 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)

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DQRID : D040421.3

Start Date	Start Time	End Date	End Time
03/28/2003	0200	06/21/2006	0215

Subject:	NSA/SKYRAD/C1 - itermittant IRT bias
DataStreams:	nsaskyrad60sC1.b1
Description:	A problem with the SKYRAD IRT that itermittantly produced a gradual increase in the sky temperature measurement then a sudden correction, as compared to AERI, appears to have been caused by a combination of a failing IR detector, a poor signal cable, a contaminated (with condensation or frost) mirror or lens, and low ambient temperatures. The positive bias was apparently not consistant in either frequency or duration but on days when the unusual behavior is observed, it usually occurred from about 00:00 to 06:00 local time. The instrument was repaired and recalibrated and the signal cable replaced.
Measurements:	nsaskyrad60sC1.b1: Sky Infra Red Temperature Minima(sky_ir_temp_min) Sky Infra Red Temperature Maxima(sky_ir_temp_max) Standard Deviation of Sky Infra Red Temperature(sky_ir_temp_std) Sky Infra-Red Temperature(sky_ir_temp)

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