DQRs for Session: 180378 User:sbiraudCompleted: 10-11-2016

Data Quality Reports for Session: 180378 User: sbiraud Completed: 10/11/2016

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D120524.1	SGP/SIRS/E21 - NIP data intermittently missing or incorrect	sgpsirsE21.b1	Incorrect
D140905.7	SGP/SIRS/E21 - Instrument problem	sgpsirsE21.b1	Incorrect
D141118.2	SGP/SIRS/E21 - Solar tracker not operating	sgpsirsE21.b1	Incorrect
D150214.3	SGP/SIRS/E21 - Instrument noise	sgpsirsE21.b1	Suspect
D150923.1	SGP/SIRS/E21 - Power failure, data missing	sgpsirsE21.b1	Missing
D151201.2	SGP ALL INSTRUMENTS - Icing Event	sgpsirsE21.b1	Does not affect quality
D160104.7	SGP Site Power Outage Due to Winter Storm	sgpsirsE21.b1	Does not affect quality

DQRID : D120524.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
03/08/2012	0030	04/30/2012	1430	Incorrect
05/01/2012	0000	05/16/2012	1740	Incorrect

Subject:	SGP/SIRS/E21 - NIP data intermittently missing or incorrect
DataStreams:	sgpsirsE21.b1
Description:	The short_direct_normal data was showing negative values (<-50 W/m^2)(during first time range) and missing value (-9999)(during second time range) each day a little after sunrise. Primarily between the hours of 11:00 - 14:00 GMT. Site Ops repaired a broken wire in the NIP cable and data appeared OK after the repair. NIP data are not recoverable. Users can calculate short_direct normal component using: short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle)
Measurements:	sgpsirsE21.b1: short_direct_normal_std Irradiance, shortwave, direct normal, pyrheliometer, mifkba(short_direct_normal_min) Shortwave Direct Normal Irradiance(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)

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DQRID : D140905.7

Start Date	Start Time	End Date	End Time	Data Quality Metric
07/08/2014	2301	08/21/2014	1845	Incorrect

Subject:	SGP/SIRS/E21 - Instrument problem
DataStreams:	sgpsirsE21.b1
Description:	The solar tracker was not functioning during the affected time range resulting in incorrect data.
Measurements:	sgpsirsE21.b1: down_short_diffuse_hemisp_std short_direct_normal_std Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, maxima(down_short_diffuse_hemisp_max) Irradiance, shortwave, direct normal, pyrheliometer, mifkba(short_direct_normal_min) Shortwave Direct Normal Irradiance(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer(down_short_diffuse_hemisp) Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, minima(down_short_diffuse_hemisp_min)

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DQRID : D141118.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
10/30/2014	2235	11/13/2014	0000	Incorrect

Subject:	SGP/SIRS/E21 - Solar tracker not operating
DataStreams:	sgpsirsE21.b1
Description:	The solar tracker was not functioning during the affected time range, resulting in incorrect data.
Measurements:	sgpsirsE21.b1: down_short_diffuse_hemisp_std short_direct_normal_std Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, maxima(down_short_diffuse_hemisp_max) Irradiance, shortwave, direct normal, pyrheliometer, mifkba(short_direct_normal_min) Shortwave Direct Normal Irradiance(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer(down_short_diffuse_hemisp) Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, minima(down_short_diffuse_hemisp_min)

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DQRID : D150214.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/11/2015	0200	01/22/2015	1745	Suspect

Subject:	SGP/SIRS/E21 - Instrument noise
DataStreams:	sgpsirsE21.b1
Description:	Upwelling LW intermittent minor signal noise occurring during affected time period.
Measurements:	sgpsirsE21.b1: up_long_hemisp_std Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp) Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) Upwelling longwave hemispheric net infrared(up_long_netir) inst_up_long_case_temp inst_up_long_dome_temp

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DQRID : D150923.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
08/19/2015	1100	08/31/2015	1615	Missing
09/18/2015	1530	09/21/2015	1900	Missing

Subject:	SGP/SIRS/E21 - Power failure, data missing
DataStreams:	sgpsirsE21.b1
Description:	System power supply failure. Data missing.
Measurements:	sgpsirsE21.b1: down_short_diffuse_hemisp_std up_short_hemisp_std Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer(down_short_diffuse_hemisp) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Upwelling longwave hemispheric net infrared(up_long_netir) down_long_hemisp_shaded_std inst_up_long_case_temp base_time North latitude(lat) Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, maxima(down_short_diffuse_hemisp_max) up_long_hemisp_std Irradiance, longwave, downwelling, hemispheric, shaded pyrgeometer(down_long_hemisp_shaded) Altitude above mean sea level(alt) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling shortwave hemispheric irradiance, pyranometer(down_short_hemisp) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) down_short_hemisp_std Downwelling longwave hemispheric net infrared(down_long_netir) inst_up_long_dome_temp short_direct_normal_std inst_down_long_shaded_dome_temp Irradiance, shortwave, direct normal, pyrheliometer, mifkba(short_direct_normal_min) inst_down_long_shaded_case_temp Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp) vBatt Upwelling shortwave hemispheric irradiance, pyranometer(up_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(down_short_hemisp_max) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Irradiance, shortwave, downwelling, hemispheric, pyranometer, mifkba(down_short_hemisp_min) Shortwave Direct Normal Irradiance(short_direct_normal) time_offset Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max) Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, minima(down_short_diffuse_hemisp_min) East longitude(lon)

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DQRID : D151201.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/27/2015	0000	11/30/2015	2359	Does not affect quality

Subject:	SGP ALL INSTRUMENTS - Icing Event
DataStreams:	sgpsirsE21.b1
Description:	An icing event (winter storm Cara) passed slowly through the area during this time frame. Instruments at the SGP may have been affected by ice accumulation.
Measurements:	sgpsirsE21.b1: down_short_diffuse_hemisp_std up_short_hemisp_std Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer(down_short_diffuse_hemisp) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Upwelling longwave hemispheric net infrared(up_long_netir) down_long_hemisp_shaded_std inst_up_long_case_temp up_long_hemisp_std Irradiance, longwave, downwelling, hemispheric, shaded pyrgeometer(down_long_hemisp_shaded) Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, maxima(down_short_diffuse_hemisp_max) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Downwelling shortwave hemispheric irradiance, pyranometer(down_short_hemisp) Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) down_short_hemisp_std Downwelling longwave hemispheric net infrared(down_long_netir) inst_up_long_dome_temp short_direct_normal_std inst_down_long_shaded_dome_temp Irradiance, shortwave, direct normal, pyrheliometer, mifkba(short_direct_normal_min) inst_down_long_shaded_case_temp Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp) vBatt Upwelling shortwave hemispheric irradiance, pyranometer(up_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(down_short_hemisp_max) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Irradiance, shortwave, downwelling, hemispheric, pyranometer, mifkba(down_short_hemisp_min) Shortwave Direct Normal Irradiance(short_direct_normal) Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max) Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, minima(down_short_diffuse_hemisp_min)

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DQRID : D160104.7

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/26/2015	0000	01/01/2016	2359	Does not affect quality

Subject:	SGP Site Power Outage Due to Winter Storm
DataStreams:	sgpsirsE21.b1
Description:	On Saturday and Sunday, December 26 and 27th a powerful winter storm (Goliath) brought sleet and freezing rain to much of Oklahoma with wind gusts of 45 MPH at times. The result was very very slick roads and mass power outages. The SGP central facility lost power at 8:55 PM CDT on Sunday, December 27th. The power was restored on 7:56 PM CDT on Wednesday, December 30th Site Emergency procedures were activated and Technicians drained water out of instrument reservoirs and other measures as needed, early Monday morning. On Wednesdays as roads and power started was restored to much of the areas east of I-35 , Site Technicians performed maintenance on several Extended Facilities. During this period, data are potentially missing, incorrect, or suspect. Carefully inspect the data before use.
Measurements:	sgpsirsE21.b1: down_short_diffuse_hemisp_std up_short_hemisp_std Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer(down_short_diffuse_hemisp) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Upwelling longwave hemispheric net infrared(up_long_netir) down_long_hemisp_shaded_std inst_up_long_case_temp base_time North latitude(lat) Irradiance, longwave, downwelling, hemispheric, shaded pyrgeometer(down_long_hemisp_shaded) up_long_hemisp_std Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, maxima(down_short_diffuse_hemisp_max) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Altitude above mean sea level(alt) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Downwelling shortwave hemispheric irradiance, pyranometer(down_short_hemisp) Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) down_short_hemisp_std inst_up_long_dome_temp Downwelling longwave hemispheric net infrared(down_long_netir) short_direct_normal_std inst_down_long_shaded_dome_temp Irradiance, shortwave, direct normal, pyrheliometer, mifkba(short_direct_normal_min) inst_down_long_shaded_case_temp Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp) Upwelling shortwave hemispheric irradiance, pyranometer(up_short_hemisp) vBatt Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(down_short_hemisp_max) Irradiance, shortwave, downwelling, hemispheric, pyranometer, mifkba(down_short_hemisp_min) Shortwave Direct Normal Irradiance(short_direct_normal) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max) time_offset Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max) Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, minima(down_short_diffuse_hemisp_min) East longitude(lon)

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