DQRs for Session: 144068 User:yunyanCompleted: 08-01-2012

Data Quality Reports for Session: 144068 User: yunyan Completed: 08/01/2012

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D120126.7	SGP/QCRAD/E1 - Tracker malfunction	sgpqcrad1longE1.c2, sgpqcrad1longE1.s2
D120126.8	SGP/QCRAD/E1 - Tracker malfunction	sgpqcrad1longE1.c2, sgpqcrad1longE1.s2
D120416.8	SGP/QCRAD/E27 - Tracker failure	sgpqcrad1longE27.c1, sgpqcrad1longE27.c2, sgpqcrad1longE27.s1, sgpqcrad1longE27.s2
D120420.6	SGP/QCRAD/C1 - SW direct normal data drop out	sgpqcrad1longC1.c1, sgpqcrad1longC1.c2, sgpqcrad1longC1.s1, sgpqcrad1longC1.s2
D120420.7	SGP/QCRAD/C1 - Failed upwelling SW cable	sgpqcrad1longC1.c1, sgpqcrad1longC1.c2, sgpqcrad1longC1.s1, sgpqcrad1longC1.s2
D120510.26	SGP/QCRAD/E6 - Tc/Td noisy	sgpqcrad1longE6.c1, sgpqcrad1longE6.c2, sgpqcrad1longE6.s1, sgpqcrad1longE6.s2
D120510.27	SGP/QCRAD/E7 - Tc/Td bad/missing/noisy	sgpqcrad1longE7.c1, sgpqcrad1longE7.c2, sgpqcrad1longE7.s1, sgpqcrad1longE7.s2
D120510.29	SGP/QCRAD/E19 - Noisy Tc/Td	sgpqcrad1longE19.c1, sgpqcrad1longE19.c2, sgpqcrad1longE19.s1, sgpqcrad1longE19.s2

DQRID : D120126.7

Start Date	Start Time	End Date	End Time
08/07/2001	1300	10/23/2001	2359
01/13/2009	1602	01/20/2009	2359
02/21/2009	0445	03/04/2009	2359
05/15/2009	1130	10/14/2009	2359

Subject:	SGP/QCRAD/E1 - Tracker malfunction
DataStreams:	sgpqcrad1longE1.c2, sgpqcrad1longE1.s2
Description:	The solar tracker was inoperative during these time periods indicating that the shortwave direct normal, the shortwave diffuse, and possibly the downwelling longwave irradiance are inaccurate. This also impacts the best estimate value because the sum of direct and diffuse cannot be used, and some tests can't be applied to the data. Some problems documented in instrument DQRs: D090520.1 & D090121.1
Measurements:	sgpqcrad1longE1.s2: Best Estimate Global Downwelling Shortwave Hemispheric Irradiance(BestEstimate_down_short_hemisp) Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) sgpqcrad1longE1.c2: Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) Best Estimate Global Downwelling Shortwave Hemispheric Irradiance(BestEstimate_down_short_hemisp)

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DQRID : D120126.8

Start Date	Start Time	End Date	End Time
08/07/2001	1300	10/23/2001	2359
01/13/2009	1602	01/20/2009	2359
02/21/2009	0445	03/04/2009	2359
05/15/2009	1130	10/14/2009	2359

Subject:	SGP/QCRAD/E1 - Tracker malfunction
DataStreams:	sgpqcrad1longE1.c2, sgpqcrad1longE1.s2
Description:	The solar tracker was inoperative during these time periods indicating that the shortwave direct normal, the shortwave diffuse, and possibly the downwelling longwave irradiance are inaccurate. This also impacts the best estimate value because the sum of direct and diffuse cannot be used, and some tests can't be applied to the data. Some problems documented in instrument DQRs: D090520.1 & D090121.1
Measurements:	sgpqcrad1longE1.s2: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) sgpqcrad1longE1.c2: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)

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DQRID : D120416.8

Start Date	Start Time	End Date	End Time
05/20/2009	1649	12/04/2009	2215

Subject:	SGP/QCRAD/E27 - Tracker failure
DataStreams:	sgpqcrad1longE27.c1, sgpqcrad1longE27.c2, sgpqcrad1longE27.s1, sgpqcrad1longE27.s2
Description:	Possible main power problem made may have caused the tracker to fail. Attempts to restart the old tracker, subsequent replacement and lack of spares contributed to incorrect data from the NIP (short_direct_normal datastream) and 8-48 (down_short_diffuse_hemisp datastream) until the time of site decommissioning. This facility was decommissioned and maintenance efforts ceased 10/1/2009. The instrument was removed from service 12/04/2009. Documented in instrument DQR D090609.1
Measurements:	sgpqcrad1longE27.c1: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Best Estimate Global Downwelling Shortwave Hemispheric Irradiance(BestEstimate_down_short_hemisp) sgpqcrad1longE27.c2: Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Best Estimate Global Downwelling Shortwave Hemispheric Irradiance(BestEstimate_down_short_hemisp) sgpqcrad1longE27.s2: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) Best Estimate Global Downwelling Shortwave Hemispheric Irradiance(BestEstimate_down_short_hemisp) sgpqcrad1longE27.s1: Best Estimate Global Downwelling Shortwave Hemispheric Irradiance(BestEstimate_down_short_hemisp) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)

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DQRID : D120420.6

Start Date	Start Time	End Date	End Time
06/18/2009	1751	07/31/2009	1645

Subject:	SGP/QCRAD/C1 - SW direct normal data drop out
DataStreams:	sgpqcrad1longC1.c1, sgpqcrad1longC1.c2, sgpqcrad1longC1.s1, sgpqcrad1longC1.s2
Description:	NIP cable had failed during this time period. Short_direct_normal data are not recoverable during this time period. However, it can be reconstructed using the following formula for each one minute data: short_direct_normal = (down_short_hemisp-down_short_diffuse_hemisp)/cos(zenith angle) Documented in instrument DQR D090623.1
Measurements:	sgpqcrad1longC1.c1: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) sgpqcrad1longC1.c2: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) sgpqcrad1longC1.s2: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) sgpqcrad1longC1.s1: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)

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DQRID : D120420.7

Start Date	Start Time	End Date	End Time
06/20/2010	0414	06/30/2010	1442

Subject:	SGP/QCRAD/C1 - Failed upwelling SW cable
DataStreams:	sgpqcrad1longC1.c1, sgpqcrad1longC1.c2, sgpqcrad1longC1.s1, sgpqcrad1longC1.s2
Description:	The upwelling shortwave hemispheric (up_short_hemisp) data were missing or incorrect due to a bad cable. Cable was replaced on 6/30 and the problem was resolved. Documented in instrument DQR D100701.1
Measurements:	sgpqcrad1longC1.c1: Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) sgpqcrad1longC1.c2: Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) sgpqcrad1longC1.s2: Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) sgpqcrad1longC1.s1: Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)

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DQRID : D120510.26

Start Date	Start Time	End Date	End Time
11/29/2006	0000	03/18/1999	1500
05/19/1999	2200	05/27/1999	2000
06/09/2010	0900	06/12/2010	1700
08/17/2010	0600	08/24/2010	0000

Subject:	SGP/QCRAD/E6 - Tc/Td noisy
DataStreams:	sgpqcrad1longE6.c1, sgpqcrad1longE6.c2, sgpqcrad1longE6.s1, sgpqcrad1longE6.s2
Description:	Case and dome temperatures for longwave fluxes are noisy during this period corresponding to additional noise in the longwave fluxes. No instrument DQRs exist documenting this problem.
Measurements:	sgpqcrad1longE6.c2: LWupTc Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) LWupTd LWdnTc Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) LWdnTd sgpqcrad1longE6.c1: LWupTd LWupTc Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) LWdnTc LWdnTd Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) sgpqcrad1longE6.s1: LWupTd LWupTc Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) LWdnTd LWdnTc sgpqcrad1longE6.s2: Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) LWupTd LWdnTc LWdnTd LWupTc

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DQRID : D120510.27

Start Date	Start Time	End Date	End Time
03/04/1997	0000	03/20/1997	1700
05/19/1999	1300	06/08/1999	2000
08/14/2000	1000	04/26/2001	1700
05/31/2009	2300	01/27/2010	1500

Subject:	SGP/QCRAD/E7 - Tc/Td bad/missing/noisy
DataStreams:	sgpqcrad1longE7.c1, sgpqcrad1longE7.c2, sgpqcrad1longE7.s1, sgpqcrad1longE7.s2
Description:	Case and dome temperatures for longwave fluxes are missing, bad, or noisy during this period corresponding to additional noise in the longwave fluxes. Some checks to the longwave fluxes cannot be performed when Tc/Td are missing. No instrument DQRs exist documenting this problem.
Measurements:	sgpqcrad1longE7.s2: LWupTd LWupTc Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) LWdnTc LWdnTd sgpqcrad1longE7.s1: LWupTd LWupTc Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) LWdnTd LWdnTc sgpqcrad1longE7.c1: LWupTc LWdnTd LWdnTc LWupTd Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) sgpqcrad1longE7.c2: Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) LWupTc LWupTd LWdnTc LWdnTd Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)

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DQRID : D120510.29

Start Date	Start Time	End Date	End Time
09/25/2002	0000	10/11/2002	1800
09/22/2010	0000	10/10/2010	0100

Subject:	SGP/QCRAD/E19 - Noisy Tc/Td
DataStreams:	sgpqcrad1longE19.c1, sgpqcrad1longE19.c2, sgpqcrad1longE19.s1, sgpqcrad1longE19.s2
Description:	Case and dome temperatures for longwave fluxes are sporadically noisy during these periods corresponding to additional noise in the longwave fluxes. No instrument DQRs exist documenting this problem.
Measurements:	sgpqcrad1longE19.c1: LWdnTc LWdnTd LWupTc LWupTd Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) sgpqcrad1longE19.c2: Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) LWdnTc LWdnTd Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) LWupTd LWupTc sgpqcrad1longE19.s1: LWdnTd LWdnTc Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) LWupTd LWupTc sgpqcrad1longE19.s2: LWupTc Irradiance, longwave, downwelling, hemispheric(down_long_hemisp) LWupTd Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) LWdnTc LWdnTd

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