DQR ID | Subject | Data Streams Affected |
---|---|---|
D061128.1 | NSA/METTWR/C2 - 2m Temp/RH sensor blocked with snow | nsamettwr2hC2.b1 |
D061128.2 | NSA/METTWR/C1 - Wind direction sensor frozen | nsamettwr4hC1.b1 |
D061213.2 | NSA/METTWR/C1 - 40m wind sensor heater failure | nsamettwr4hC1.b1 |
D070226.1 | NSA/METTWR/C1 - 40m Wind Direction Data Suspect | nsamettwr4hC1.b1 |
D070529.1 | NSA/METTWR/C1 - 20m RH Data Questionable | nsamettwr4hC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/27/2006 | 0608 | 11/27/2006 | 2226 |
Subject: | NSA/METTWR/C2 - 2m Temp/RH sensor blocked with snow |
DataStreams: | nsamettwr2hC2.b1 |
Description: | The 2m RH, Dew Point and Vapor Pressure values are incorrect due to the intake of the aspirated shield being blocked with snow and ice. The RH% values are artificially larger than the 5m and Chilled Mirror values. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/24/2006 | 2336 | 11/27/2006 | 0253 |
Subject: | NSA/METTWR/C1 - Wind direction sensor frozen |
DataStreams: | nsamettwr4hC1.b1 |
Description: | After a power outage the 40m wind direction sensor was frozen. Data from this sensor was not representative of the true winds. |
Measurements: | nsamettwr4hC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/01/2006 | 0000 | 05/22/2007 | 2347 |
Subject: | NSA/METTWR/C1 - 40m wind sensor heater failure |
DataStreams: | nsamettwr4hC1.b1 |
Description: | The 40m wind direction became frozen at times. The values from the sensor were flat-lined (stdev = 0) much of the time and did not match sensors from other levels. |
Measurements: | nsamettwr4hC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/20/2006 | 0030 | 11/27/2006 | 0254 |
12/08/2006 | 0125 | 12/14/2006 | 2229 |
12/16/2006 | 1545 | 12/21/2006 | 1105 |
12/23/2006 | 1612 | 01/18/2007 | 2357 |
01/20/2007 | 1357 | 01/29/2007 | 2140 |
Subject: | NSA/METTWR/C1 - 40m Wind Direction Data Suspect |
DataStreams: | nsamettwr4hC1.b1 |
Description: | The 40m wind direction data was suspect due to icing on the vane or a failing shafter heater or a combination of both. The affected data can be easily seen on comparison plots with other levels data or by checking the standard deviation of the 40m wind direction. Any standard deviation of less than 0.10 degrees for the 40m level suggest a sluggish/ice affected sensor. |
Measurements: | nsamettwr4hC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/18/2006 | 0000 | 05/22/2007 | 2330 |
Subject: | NSA/METTWR/C1 - 20m RH Data Questionable |
DataStreams: | nsamettwr4hC1.b1 |
Description: | The 20m RH data was questionable at times. When the data appeared to be poor was when the 2m and 20m agreed better than the 20m and the 40m and/or 10m. |
Measurements: | nsamettwr4hC1.b1:
|