DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D100629.1 | SGP/MET/E20 - Rain Gauge Cable Chewed by Rodents | sgpmetE20.b1 | Incorrect |
D110105.2 | SGP/MET/E11 - Intermittent incorrect windspeed | sgpmetE11.b1 | Suspect |
D110621.1 | SGP/MET/E11 - Wind speed incorrect | sgpmetE11.b1 | Incorrect |
D140108.1 | SGP/MET/E11/E15/E21/E31/E33/E34/E35/E36/E37/E38/E9 - Ice on wind sensors | sgpmetE11.b1 | Suspect |
D150311.15 | SGP/MET/E11 - Data logger issue resulted in incorrect data | sgpmetE11.b1 | Incorrect |
D150311.16 | SGP/MET/E11 - Missing data due to hardware problem | sgpmetE11.b1 | Missing |
D150327.1 | SGP/MET/E11 - Collection problem caused missing data | sgpmetE11.b1 | Missing |
D151201.2 | SGP ALL INSTRUMENTS - Icing Event | sgpmetE11.b1 | Does not affect quality |
D160104.7 | SGP Site Power Outage Due to Winter Storm | sgpmetE11.b1 | Does not affect quality |
D160108.3 | SGP/MET/E11 - Missing Data | sgpmetE11.b1 | Missing |
D160203.3 | SGP/MET/E11 - False tips in high winds | sgpmetE11.b1 | Does not affect quality |
D160805.1 | SGP/MET/E11 - Tipping bucket rain gauge clogged | sgpmetE11.b1 | Incorrect |
D160923.7 | SGP/MET/E11 - Missing data | sgpmetE11.b1 | Missing |
D170123.1 | SGP/MET/E11/E13/E15/E21/E31/E32/E33/E34/E35/E36/E37/E38/E39/E40/E41/E9 - Ice storm affected winds | sgpmetE11.b1 | Incorrect |
D170221.5 | SGP/MET/STAMP/All - Freezing Rain Event | sgpmetE11.b1 | Does not affect quality |
D170320.12 | SGP/MET/E11 - Temperature/humidity sensor failed a field calibration check | sgpmetE11.b1 | Does not affect quality |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/26/2010 | 0000 | 06/21/2010 | 2021 | Incorrect |
Subject: | SGP/MET/E20 - Rain Gauge Cable Chewed by Rodents |
DataStreams: | sgpmetE20.b1 |
Description: | The rain gauge cable was damaged by rodents. At the beginning of the time period, the data was falsely indicating nearly constant precipitation. Later it was falsely reporting no precipitation during a large rain event. Data are not recoverable. |
Measurements: | sgpmetE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/20/2010 | 1900 | 11/01/2010 | 1539 | Suspect |
Subject: | SGP/MET/E11 - Intermittent incorrect windspeed |
DataStreams: | sgpmetE11.b1 |
Description: | Starting on 10/20 the wind speed values intermittently flatlined. Site operations reseated cable on 11/1. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/14/2011 | 0724 | 05/18/2011 | 0130 | Incorrect |
Subject: | SGP/MET/E11 - Wind speed incorrect |
DataStreams: | sgpmetE11.b1 |
Description: | Starting on 05/14 the wind speed values at E11 intermittently flat-lined. The connections were reseated 5/18. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/21/2013 | 0000 | 12/25/2013 | 2359 | Suspect |
Subject: | SGP/MET/E11/E15/E21/E31/E33/E34/E35/E36/E37/E38/E9 - Ice on wind sensors |
DataStreams: | sgpmetE11.b1 |
Description: | Wind data was affected by ice buildup on the sensors. Data during this period should be used with caution. Exact times of sensor thaw are unknown. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/27/2015 | 1704 | 02/27/2015 | 2100 | Incorrect |
Subject: | SGP/MET/E11 - Data logger issue resulted in incorrect data |
DataStreams: | sgpmetE11.b1 |
Description: | Data logger voltage dropped too low due to a battery problem. This caused incorrect temperature, relative humidity, vapor pressure, and atmospheric pressure data during this time. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/27/2015 | 2100 | 03/06/2015 | 0338 | Missing |
Subject: | SGP/MET/E11 - Missing data due to hardware problem |
DataStreams: | sgpmetE11.b1 |
Description: | No data available during this period due to a hardware/communication issue. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/11/2015 | 1718 | 03/11/2015 | 1859 | Missing |
03/15/2015 | 1421 | 03/15/2015 | 1859 | Missing |
03/14/2015 | 0100 | 03/14/2015 | 2359 | Missing |
03/13/2015 | 0411 | 03/13/2015 | 1759 | Missing |
03/16/2015 | 0000 | 03/23/2015 | 1644 | Missing |
Subject: | SGP/MET/E11 - Collection problem caused missing data |
DataStreams: | sgpmetE11.b1 |
Description: | A data collection problem caused periods of missing data for the times indicated. Between 3/16 and 3/23, there are short instances of active data, but these values should be used with discretion. |
Measurements: | sgpmetE11.b1:
|
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: | sgpmetE11.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: | sgpmetE11.b1:
|
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: | sgpmetE11.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: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/28/2015 | 0400 | 01/05/2016 | 1533 | Missing |
Subject: | SGP/MET/E11 - Missing Data |
DataStreams: | sgpmetE11.b1 |
Description: | The site computer went down following an ice storm that caused a power outage. The met data was missing for an extended period. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/28/1995 | 0000 | 02/01/2016 | 1725 | Does not affect quality |
Subject: | SGP/MET/E11 - False tips in high winds |
DataStreams: | sgpmetE11.b1 |
Description: | The TBRG's were mounted at a height that made them prone to vibrations caused by high winds which may have caused false tips. The end date of this DQR indicates when the rain gauge was lowered to mitigate these effects. Effects on the total precipitation amounts are assumed to be negligible. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/29/2016 | 0700 | 08/04/2016 | 1720 | Incorrect |
Subject: | SGP/MET/E11 - Tipping bucket rain gauge clogged |
DataStreams: | sgpmetE11.b1 |
Description: | Debris was found obstructing the rain gauge funnel. Precipitation data are incorrect during this time. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/07/2016 | 1504 | 09/08/2016 | 1506 | Missing |
Subject: | SGP/MET/E11 - Missing data |
DataStreams: | sgpmetE11.b1 |
Description: | Data are missing for an unknown reason. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/14/2017 | 0000 | 01/16/2017 | 2359 | Incorrect |
Subject: | SGP/MET/E11/E13/E15/E21/E31/E32/E33/E34/E35/E36/E37/E38/E39/E40/E41/E9 - Ice storm |
DataStreams: | sgpmetE11.b1 |
Description: | An ice storm impaired the wind sensor mechanics during this time. At most sites, winds flatlined for a large part of 1/15. Data from 1/14 - 1/16 may not be accurate. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/13/2017 | 1000 | 01/16/2017 | 1200 | Does not affect quality |
Subject: | SGP/MET/STAMP/All - Freezing Rain Event |
DataStreams: | sgpmetE11.b1 |
Description: | A freezing rain event potentially affected some of the STAMP and MET tipping bucket rain gauges. The rain accumulation amounts generally agree (2 exceptions noted below) but the timing and rate of precipitation may disagree at times between the STAMP and MET. Instruments at E33 and E39 were found to differ more than the expected uncertainty and will be covered in additional DQRs if a problem is found. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/10/2007 | 0000 | 04/07/2009 | 2359 | Does not affect quality |
Subject: | SGP/MET/E11 - Temperature/humidity sensor failed a field calibration check |
DataStreams: | sgpmetE11.b1 |
Description: | The temperature/humidity sensor was not calibrated annually during this time. The temperature failed a field calibration check on 10/10/2007 (read high), but passed subsequent checks until replacement on 4/7/2009. In general, the relative humidity may have been subject to drift during this time. The manufacturer characterizes sensor drift at <1% / year. |
Measurements: | sgpmetE11.b1:
|