DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D090331.2 | NSA/MET/C1 - Temp/RH/wind data questionable | nsatwrC1.b1 | Suspect |
D090331.4 | NSA/MET/C1 - Wind data intermittent | nsatwrC1.b1 | Suspect |
D090630.1 | NSA/MET/C1 - Met data incorrect during calibration | nsatwrC1.b1 | Incorrect |
D090710.1 | NSA/MET/C1 - 2m RH values incorrect | nsatwrC1.b1 | Suspect |
D091014.2 | NSA/TWR/C1 - 40m T/RH Sensor Failure | nsatwrC1.b1 | Incorrect |
D091201.2 | NSA/TWR/C1 - 40m and 20m Data Incorrect | nsatwrC1.b1 | Incorrect |
D100203.2 | NSA/TWR/C1 - 40m level data incorrect | nsatwrC1.b1 | Incorrect |
D100208.14 | NSA/TWR/C1 - Wind sensor data failures | nsatwrC1.b1 | Incorrect |
D110722.2 | NSA/MET/C1 - Wind sensor data missing | nsatwrC1.b1 | Missing |
D110722.3 | NSA/MET/C1 - 20m T/RH sensor failure | nsatwrC1.b1 | Incorrect |
D120806.1 | NSA/TWR/C1 - 40m T/RH sensor noise | nsatwrC1.b1 | Suspect |
D121108.1 | NSA/MET/C1 - 10m wind data not reporting | nsatwrC1.b1 | Incorrect |
D121108.2 | NSA/MET/C1 - 20m T/RH sensor failure | nsatwrC1.b1 | Suspect |
D130702.3 | NSA/MET/C1 - Tower maintenance | nsatwrC1.b1 | Incorrect |
D130717.2 | NSA/MET/C1 - Incorrect 20m wind data | nsatwrC1.b1 | Incorrect |
D130717.3 | NSA/MET/C1 - Incorrect 2m wind data | nsatwrC1.b1 | Incorrect |
D140213.3 | NSA/MET/C1 - Power outage | nsatwrC1.b1 | Incorrect |
D140716.1 | NSA/TWR/C1 - 40m temp/humidity problem | nsatwrC1.b1 | Incorrect |
D140926.5 | NSA/TWR/C1 - 40m wind sensor outage | nsatwrC1.b1 | Missing |
D141010.2 | NSA/TWR/C1 - Reprocessing Notice (RID 1240) | nsatwrC1.b1 | Does not affect quality |
D141010.3 | NSA/TWR/C1 - 2m Temp/RH instrument offline | nsatwrC1.b1 | Missing |
D141106.1 | NSA/MET/C1 - Reprocessing Notice (RID 1252) | nsatwrC1.b1 | Does not affect quality |
D150724.1 | NSA/TWR/C1 - 40m wind data missing | nsatwrC1.b1 | Missing |
D151013.1 | NSA/TWR/C1 - Tower maintenance | nsatwrC1.b1 | Suspect |
D151013.2 | NSA/TWR/C1 - 10m T/RH possible bias | nsatwrC1.b1 | Suspect |
D160622.2 | NSA/TWR/C1 - Wind data missing at 40 meter level | nsatwrC1.b1 | Missing |
D160808.1 | NSA/TWR/C1 - Missing wind data at 40-meter level | nsatwrC1.b1 | Missing |
D160829.1 | NSA/TWR/C1 - 40m wind speed too high | nsatwrC1.b1 | Suspect |
D160923.21 | NSA/TWR/C1 - Instrument contamination | nsatwrC1.b1 | Incorrect |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/18/2008 | 0000 | 09/20/2008 | 2359 | Suspect |
Subject: | NSA/MET/C1 - Temp/RH/wind data questionable |
DataStreams: | nsatwrC1.b1 |
Description: | New wind sensors and new T/RH probes were being installed during this time period. The tower booms were lowered and much of the data collected were not at listed heights nor were the data accurate due to configurations during install. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/01/2008 | 0000 | 12/18/2008 | 2100 | Suspect |
Subject: | NSA/MET/C1 - Wind data intermittent |
DataStreams: | nsatwrC1.b1 |
Description: | There was a loose wire on the serial data multiplexer causing the wind data to become missing during high wind situations. The high winds caused the enclosure to vibrate making the connection intermittent. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/08/2009 | 2244 | 06/11/2009 | 2037 | Incorrect |
Subject: | NSA/MET/C1 - Met data incorrect during calibration |
DataStreams: | nsatwrC1.b1 |
Description: | All met data from the tower booms (temp, RH, winds and derived variables) were incorrect due to the booms being lowered from their measurement heights. Additionally, the scaffolding was located directly adjacent to the booms affecting the wind field and the Temp/RH data. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/13/2009 | 2215 | 07/08/2009 | 2250 | Suspect |
Subject: | NSA/MET/C1 - 2m RH values incorrect |
DataStreams: | nsatwrC1.b1 |
Description: | The new t/rh probe installed during annual calibrations and checks began to exhibit readings that were biased high compared to the Chilled Mirror Hygrometer. In high RH conditions the sensor would consistently report RH values in excess of 105%. Comparisons to the other tower levels also suggested that the 2m level RH data is suspect. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/12/2009 | 2237 | 09/23/2009 | 2259 | Incorrect |
Subject: | NSA/TWR/C1 - 40m T/RH Sensor Failure |
DataStreams: | nsatwrC1.b1 |
Description: | 40m RH data were very noisy after tower maintenance. Following system re-boot, RH data were too high. Sensor was replaced. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/24/2009 | 2328 | 12/09/2009 | 2315 | Incorrect |
Subject: | NSA/TWR/C1 - 40m and 20m Data Incorrect |
DataStreams: | nsatwrC1.b1 |
Description: | A power distribution problem required us to shut down power to the 40m level. All T/RH were missing and the 40m wind sensor did not have heat to remove any ice build up. All wind data from the 40m level should be viewed critically before use. The 20m T/RH sensor was power spike when the problem occurred causing this sensor to become erratic. See D100302.2 for the continuation of the 40m problem. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/09/2009 | 2316 | 07/18/2011 | 0002 | Incorrect |
Subject: | NSA/TWR/C1 - 40m level data incorrect |
DataStreams: | nsatwrC1.b1 |
Description: | A power distribution problem required us to turn off the 50V DC power to the 40m level. This shutdown the T/RH probe and the heating of the ultrasonic sensor. The wind data is useful at times when there is no icing present. This DQR is a follow on to D091201.2 that was closed when the 20m level T/RH probe was replaced. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/25/2010 | 1420 | 02/05/2010 | 2100 | Incorrect |
Subject: | NSA/TWR/C1 - Wind sensor data failures |
DataStreams: | nsatwrC1.b1 |
Description: | The wind speed and direction values for 2m, 10m and 20m dropped to zero at 14:20 GMT. The cause was a power failure due to failed power line. Power spikes caused the wind sensors to revert to default settings for communications and measurements. The following is a list of dates that the various sensors came back online: 2m wind problem ending on 01/28/2010 @ 2330GMT 20m wind problem ending on 02/04/2010 @ 2230GMT 10m wind problem ending on 02/05/2010 @ 2100GMT 40m winds were already failing and documented in DQPR 2262 and PIF P091030.1. The MET system was also affected and documented in DQPR 2337. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/17/2011 | 0200 | 07/20/2011 | 1823 | Missing |
Subject: | NSA/MET/C1 - Wind sensor data missing |
DataStreams: | nsatwrC1.b1 |
Description: | 2m, 10m, 20m wind sensors went off-line 5/17 due to GFCI tripping caused by failing CMH. The 2m and 20m data wind sensor returned 6/6, but the 10m remained offline until 7/20 as the sensor was damaged. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/21/2010 | 1100 | 07/20/2011 | 1823 | Incorrect |
Subject: | NSA/MET/C1 - 20m T/RH sensor failure |
DataStreams: | nsatwrC1.b1 |
Description: | The 20m temperature and RH were erratic and incorrect resulting in incorrect vapor pressure calculations. The sensor was damaged by voltage spikes on the power lines. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/17/2012 | 1625 | 08/01/2012 | 0259 | Suspect |
Subject: | NSA/TWR/C1 - 40m T/RH sensor noise |
DataStreams: | nsatwrC1.b1 |
Description: | 40m T/RH sensor spiked on 5/17/12, then remained noisy mostly at high humidity. Sensor replacement during tower maintenance on 8/1/12 has resolved the issue. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/26/2012 | 2000 | 10/03/2012 | 2330 | Incorrect |
Subject: | NSA/MET/C1 - 10m wind data not reporting |
DataStreams: | nsatwrC1.b1 |
Description: | 10 meter wind speed and direction data were not reporting after a scheduled power outage took place. Sensor was replaced. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/26/2012 | 1413 | 10/03/2012 | 2330 | Suspect |
Subject: | NSA/MET/C1 - 20m T/RH sensor failure |
DataStreams: | nsatwrC1.b1 |
Description: | The 20 meter temperature, dew point, and humidity data were spiking and reporting high/low in relation to other sensors on the tower. Sensor was replaced. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/26/2013 | 2200 | 06/27/2013 | 2315 | Incorrect |
Subject: | NSA/MET/C1 - Tower maintenance |
DataStreams: | nsatwrC1.b1 |
Description: | Data not representative due to tower instrument maintenance. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/01/2013 | 2258 | 07/11/2013 | 2252 | Incorrect |
Subject: | NSA/MET/C1 - Incorrect 20m wind data |
DataStreams: | nsatwrC1.b1 |
Description: | The 20 meter wind data flatline due to a loss of communication settings. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/11/2013 | 2252 | 07/12/2013 | 1905 | Incorrect |
Subject: | NSA/MET/C1 - Incorrect 2m wind data |
DataStreams: | nsatwrC1.b1 |
Description: | The 2 meter wind data flatlines due to a loss of communication settings. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/06/2014 | 1317 | 02/06/2014 | 1404 | Incorrect |
Subject: | NSA/MET/C1 - Power outage |
DataStreams: | nsatwrC1.b1 |
Description: | Incorrect data due to power outage. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/10/2014 | 1736 | 07/15/2014 | 0007 | Incorrect |
Subject: | NSA/TWR/C1 - 40m temp/humidity problem |
DataStreams: | nsatwrC1.b1 |
Description: | A problem with the temp/humidity sensor at the 40m level caused incorrect data to be recorded. Between 5/10/14 and 5/16/14, dew point, relative humidity, and vapor pressure data are occasionally incorrect (vastly different when compared with other levels). Beginning 6/5/14, the data go missing entirely until a sensor exchange occurred on 7/15/2014. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/05/2014 | 2100 | 09/25/2014 | 2150 | Missing |
Subject: | NSA/TWR/C1 - 40m wind sensor outage |
DataStreams: | nsatwrC1.b1 |
Description: | Wind direction and speed at the 40 meter level are missing during this time due to incorrect sensor configuration. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/01/2014 | 2011 | 10/04/2014 | 2022 | Does not affect quality |
Subject: | NSA/TWR/C1 - Reprocessing Notice (RID 1240) |
DataStreams: | nsatwrC1.b1 |
Description: | See below for details of reprocessing that was completed on 20150626. Original DQR category: 4 (Red, Incorrect). ----------------------------------------------------------- The 10m temperature and relative humidity fields are swapped during this time (and corresponding standard deviation fields). The 40m temperature and relative humidity fields are swapped during this time (and corresponding standard deviation fields). The raw data will be corrected and reprocessed to fix this issue. The 10m and 40m error codes are incorrect and will not be fixed. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/01/2014 | 2215 | 10/04/2014 | 0056 | Missing |
Subject: | NSA/TWR/C1 - 2m Temp/RH instrument offline |
DataStreams: | nsatwrC1.b1 |
Description: | A broken wire caused missing data from the 2m temp/relative humidity sensor during this time. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/05/2014 | 2100 | 11/06/2014 | 2052 | Does not affect quality |
Subject: | NSA/MET/C1 - Reprocessing Notice (RID 1252) |
DataStreams: | nsatwrC1.b1 |
Description: | See below for details of reprocessing that was completed on 20150109. Original DQR category: 4 (Red, Incorrect). ----------------------------------------------------------- The wind direction data are 30 degrees too high due to an alignment/offset problem during this time. Problem affects all 4 tower levels in the nsatwrC1.b1 datastream, as well as the wind direction data in the nsametC1.b1 datastream. Data will be reprocessed for correction. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/17/2015 | 2130 | 07/23/2015 | 2123 | Missing |
Subject: | NSA/TWR/C1 - 40m wind data missing |
DataStreams: | nsatwrC1.b1 |
Description: | There was a communication problem with the 40m wind sensor. Data are missing during the indicated time period. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/16/2015 | 1840 | 09/16/2015 | 2335 | Suspect |
10/09/2015 | 2030 | 10/09/2015 | 2130 | Suspect |
Subject: | NSA/TWR/C1 - Tower maintenance |
DataStreams: | nsatwrC1.b1 |
Description: | Tower was lowered for annual T/RH sensor exchanges. Data may not be representative of conditions at stardard heights. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/16/2015 | 1840 | 10/09/2015 | 2130 | Suspect |
Subject: | NSA/TWR/C1 - 10m T/RH possible bias |
DataStreams: | nsatwrC1.b1 |
Description: | A calibration check showed questionable agreement of relative humidity with the test probe. The sensor was replaced with a newly calibrated unit. 10m relative humidity values are suspect during this time. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/18/2016 | 1605 | 06/22/2016 | 1644 | Missing |
Subject: | NSA/TWR/C1 - Wind data missing at 40 meter level |
DataStreams: | nsatwrC1.b1 |
Description: | 40 meter wind sensor lost configuration settings resulting in missing data. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/28/2016 | 1947 | 08/08/2016 | 1833 | Missing |
Subject: | NSA/TWR/C1 - Missing wind data at 40-meter level |
DataStreams: | nsatwrC1.b1 |
Description: | The wind sensor at the 40-meter level lost communication resulting in missing data. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/08/2016 | 1830 | 08/26/2016 | 2346 | Suspect |
Subject: | NSA/TWR/C1 - 40m wind speed too high |
DataStreams: | nsatwrC1.b1 |
Description: | The 40 meter wind speed data is higher than expected during this time. |
Measurements: | nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/05/2016 | 0000 | 09/22/2016 | 0053 | Incorrect |
Subject: | NSA/TWR/C1 - Instrument contamination |
DataStreams: | nsatwrC1.b1 |
Description: | Probable sensor contamination caused dew point and relative humidity readings to be much lower than expected at the 40 meter level. |
Measurements: | nsatwrC1.b1:
|