Data Quality Report

Data Quality Report for Order ID: 187710
User ID: dodde2 Date completed: 2017-09-13

All DQRs

DQR ID	Subject	Affected Data Streams	Data Quality Metric
D160104.7	SGP Site Power Outage Due to Winter Storm	sgpirt200msE13.a1	Note
D161021.2	SGP/IRT/C1 - 25M power failure	sgpirt25m20sC1.a0	Incorrect
D140324.4	SGP/IRT/C1 - Over ranging near local solar noon	sgpirt25mC1.b1	Note
D130211.1	SGP/IRT/C1 - 10m IRT ground surface temperature	sgpirt10mC1.b1	Note
D130501.1	SGP/IRT/C1 - 25m IRT ground surface temperature	sgpirt25mC1.b1	Note
D160617.2	SGP/IRT/C1 - 25m upwelling IRT	sgpirt25mC1.b1	Suspect
D151218.3	SGP/IRT/C1 - Datalogger power	sgpirt10mC1.b1	Missing
D130924.4	SGP/IRT/C1 - Degraded hardware	sgpirt25mC1.b1	Incorrect

DQR ID: D160104.7 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2015-12-26	00:00:00	2016-01-01	23:59:59	Note

Subject:	SGP Site Power Outage Due to Winter Storm
Affected Datastreams:	sgpirt200msE13.a1
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	qc_time (Quality check results on field: Time offset from midnight) up_short_hemisp (Upwelling Shortwave Hemispheric Irradiance, Pyranometer) inst_up_long_dome_temp (Instantaneous Dome Temperature) time_offset (Time offset from base_time) up_long_hemisp_std (Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Standard Deviation) sfc_ir_temp_max (Surface Infra-Red Temperature Maxima) sfc_ir_temp_min (Surface Infra-Red Temperature, Minima) up_long_hemisp_min (Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima) up_short_hemisp_std (Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation) lon (East longitude) sfc_ir_temp_std (Surface Infra-Red Temperature, Standard Deviation) sfc_ir_temp_min (Surface Infra-Red Temperature Minima) inst_up_long_hemisp (Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer) up_long_netir (Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer) qc_up_short_hemisp_max (Quality check results on field: Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima) logger_temp (Logger Temperature) time (Time offset from midnight) base_time (Base time in Epoch) inst_up_long_case_temp (Instantaneous Case Temperature) sfc_ir_temp (Surface Infra-Red Temperature) qc_up_short_hemisp (Quality check results on field: Upwelling Shortwave Hemispheric Irradiance, Pyranometer) qc_up_long_hemisp_max (Quality check results on field: Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima) qc_up_long_hemisp_min (Quality check results on field: Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima) lat (North latitude) qc_up_short_hemisp_min (Quality check results on field: Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima) inst_sfc_ir_temp (Instantaneous Surface Infra-red Temperature) inst_up_short_hemisp (Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer) alt (Altitude above mean sea level) qc_up_long_hemisp (Quality check results on field: Upwelling Longwave Hemispheric Irradiance, Pyrgeometer) up_short_hemisp_max (Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima) up_long_hemisp_max (Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima) up_short_hemisp_min (Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima) up_long_hemisp (Upwelling Longwave Hemispheric Irradiance, Pyrgeometer) internal_voltage (Battery Voltage) sfc_ir_temp_max (Surface Infra-Red Temperature, Maxima)

DQR ID: D161021.2 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2016-10-07	11:30:00	2016-10-20	15:27:00	Incorrect

Subject:	SGP/IRT/C1 - 25M power failure
Affected Datastreams:	sgpirt25m20sC1.a0
Description	The power supply for the 25M IRT failed and was replaced.
Measurements	sfc_ir_temp (Surface Infra-Red Temperature) sfc_ir_temp_min (Surface Infra-Red Temperature Minima) sfc_ir_temp_max (Surface Infra-Red Temperature Maxima) sfc_ir_temp_min (Surface Infra-Red Temperature, Minima) sfc_ir_temp_max (Surface Infra-Red Temperature, Maxima) inst_sfc_ir_temp (Instantaneous Surface Infra-red Temperature) sfc_ir_temp_std (Surface Infra-Red Temperature, Standard Deviation)

DQR ID: D140324.4 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2001-09-28	00:00:00	2014-03-20	15:33:00	Note

Subject:	SGP/IRT/C1 - Over ranging near local solar noon
Affected Datastreams:	sgpirt25mC1.b1
Description	The PSP did not measure up_short_hemisp values greater than 295.5 W/m^2 due to an error in the voltage range used in the CR10X datalogger program. This occurred only in the winter during periods when there was bright snow at the base of the 25-m tower. Periods of over ranging around local solar noon have been replaced with missing_value indicator.
Measurements	up_short_hemisp_max (Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima) up_short_hemisp_std (Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation) up_short_hemisp (Upwelling Shortwave Hemispheric Irradiance, Pyranometer) up_short_hemisp_min (Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima)

DQR ID: D130211.1 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2012-11-11	07:50:00	2013-02-08	15:25:00	Note

Subject:	SGP/IRT/C1 - 10m IRT ground surface temperature
Affected Datastreams:	sgpirt10mC1.b1
Description	The 10m IRT was measuring lower ground surface temperature than the 25m IRT. The lens was cleaned on 12/19/2012 and replaced on 2/8/2013 but the difference in temperature appears to be due to the seasonal difference in surface cover - tall grass vesus bare soil.
Measurements	sfc_ir_temp (Surface Infra-Red Temperature) sfc_ir_temp_min (Surface Infra-Red Temperature Minima) sfc_ir_temp_max (Surface Infra-Red Temperature Maxima) sfc_ir_temp_min (Surface Infra-Red Temperature, Minima) sfc_ir_temp_max (Surface Infra-Red Temperature, Maxima) sfc_ir_temp_std (Surface Infra-Red Temperature, Standard Deviation)

DQR ID: D130501.1 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2012-11-11	07:50:00	2013-02-08	19:57:00	Note

Subject:	SGP/IRT/C1 - 25m IRT ground surface temperature
Affected Datastreams:	sgpirt25mC1.b1
Description	The 10m IRT was measuring lower ground surface temperature than the 25m IRT. The 25m lens was cleaned on 12/24/2012 and replaced on 2/8/2013 but the difference in temperature appears to be due to the seasonal difference in surface cover - tall grass vesus bare soil.
Measurements	sfc_ir_temp (Surface Infra-Red Temperature) sfc_ir_temp_min (Surface Infra-Red Temperature Minima) sfc_ir_temp_max (Surface Infra-Red Temperature Maxima) sfc_ir_temp_min (Surface Infra-Red Temperature, Minima) sfc_ir_temp_max (Surface Infra-Red Temperature, Maxima) sfc_ir_temp_std (Surface Infra-Red Temperature, Standard Deviation)

DQR ID: D160617.2 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2016-06-14	18:00:00	2016-06-15	20:25:00	Suspect

Subject:	SGP/IRT/C1 - 25m upwelling IRT
Affected Datastreams:	sgpirt25mC1.b1
Description	The SE tower carriages were lowered for installation of new tower cameras. These measurements were taken while the carriages were near ground level.
Measurements	inst_up_long_case_temp (Instantaneous Case Temperature) sfc_ir_temp (Surface Infra-Red Temperature) up_short_hemisp (Upwelling Shortwave Hemispheric Irradiance, Pyranometer) inst_up_long_dome_temp (Instantaneous Dome Temperature) sfc_ir_temp_min (Surface Infra-Red Temperature Minima) up_long_hemisp_std (Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Standard Deviation) sfc_ir_temp_max (Surface Infra-Red Temperature Maxima) inst_up_long_hemisp (Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer) up_long_netir (Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer) sfc_ir_temp_min (Surface Infra-Red Temperature, Minima) up_short_hemisp_max (Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima) up_long_hemisp_min (Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima) up_short_hemisp_std (Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation) up_short_hemisp_min (Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima) up_long_hemisp_max (Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima) up_long_hemisp (Upwelling Longwave Hemispheric Irradiance, Pyrgeometer) sfc_ir_temp_max (Surface Infra-Red Temperature, Maxima) inst_sfc_ir_temp (Instantaneous Surface Infra-red Temperature) sfc_ir_temp_std (Surface Infra-Red Temperature, Standard Deviation) inst_up_short_hemisp (Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer)

DQR ID: D151218.3 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2015-12-02	05:35:00	2015-12-03	19:04:59	Missing
2015-12-03	21:00:00	2015-12-04	15:17:59	Missing

Subject:	SGP/IRT/C1 - Datalogger power
Affected Datastreams:	sgpirt10mC1.b1
Description	The datalogger lost power and was replaced.
Measurements	sfc_ir_temp (Surface Infra-Red Temperature) alt (Altitude above mean sea level) sfc_ir_temp_min (Surface Infra-Red Temperature Minima) time_offset (Time offset from base_time) sfc_ir_temp_max (Surface Infra-Red Temperature Maxima) base_time (Base time in Epoch) sfc_ir_temp_min (Surface Infra-Red Temperature, Minima) lat (North latitude) internal_voltage (Battery Voltage) logger_temp (Logger Temperature) lon (East longitude) time (Time offset from midnight) sfc_ir_temp_max (Surface Infra-Red Temperature, Maxima) sfc_ir_temp_std (Surface Infra-Red Temperature, Standard Deviation)

DQR ID: D130924.4 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2012-10-26	00:00:00	2013-09-19	15:00:00	Incorrect

Subject:	SGP/IRT/C1 - Degraded hardware
Affected Datastreams:	sgpirt25mC1.b1
Description	The surface temperature from the 25m IRT was ~10K less than measured from the PIR. The lens was replaced on 2/8/2013 but there was still a bias. The problem was corrected when the IRT (and that at 10m) was upgraded to a newer model. It may be possible to determine the calibration offset, using the PIR as reference, and correct the surface temperature measurements.
Measurements	sfc_ir_temp (Surface Infra-Red Temperature) sfc_ir_temp_min (Surface Infra-Red Temperature Minima) sfc_ir_temp_max (Surface Infra-Red Temperature Maxima) sfc_ir_temp_min (Surface Infra-Red Temperature, Minima) sfc_ir_temp_max (Surface Infra-Red Temperature, Maxima) inst_sfc_ir_temp (Instantaneous Surface Infra-red Temperature) sfc_ir_temp_std (Surface Infra-Red Temperature, Standard Deviation)