DQR ID | Subject | Data Streams Affected |
---|---|---|
D010504.2 | NSA/MWR/C2 - Missing data | nsamwrlosC2.b1, nsamwrtipC2.a1 |
D080512.1 | NSA/MWR/C1 - Spikes in air temperature readings | nsamwrlosC1.b1, nsamwrtipC1.a1 |
D080512.2 | NSA/MWR/C2 - Possible bias on measurements | nsamwrlosC2.b1, nsamwrtipC2.a1 |
D080623.1 | NSA/MWR/C1 - Missing surface air temperature data | nsamwrlosC1.b1, nsamwrtipC1.a1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/26/1999 | 0003 | 11/02/1999 | 0008 |
11/09/1999 | 0004 | 12/27/1999 | 0008 |
12/28/1999 | 0004 | 01/08/2000 | 0008 |
01/11/2000 | 0004 | 01/20/2000 | 0428 |
03/11/2000 | 0218 | 03/22/2000 | 0449 |
04/16/2000 | 1536 | 04/18/2000 | 0540 |
06/09/2000 | 0605 | 06/12/2000 | 0408 |
09/28/2000 | 0036 | 09/30/2000 | 0132 |
02/03/2001 | 0208 | 02/05/2001 | 0014 |
06/23/2001 | 0000 | 06/25/2001 | 1820 |
07/01/2001 | 2000 | 07/04/2001 | 1745 |
07/15/2001 | 1800 | 07/17/2001 | 1650 |
11/17/2001 | 0300 | 11/28/2001 | 2332 |
01/21/2002 | 2221 | 01/23/2002 | 0417 |
04/02/2002 | 0000 | 04/03/2002 | 0151 |
04/15/2002 | 2324 | 04/17/2002 | 0108 |
07/21/2002 | 1800 | 07/23/2002 | 0448 |
12/18/2002 | 2218 | 01/28/2003 | 2115 |
02/17/2003 | 1842 | 02/25/2003 | 2044 |
09/22/2005 | 1932 | 10/01/2005 | 1700 |
08/28/2006 | 2000 | 04/15/2008 | 1519 |
11/10/2008 | 1900 | 11/13/2008 | 2309 |
03/25/2009 | 1859 | 03/28/2009 | 2033 |
10/22/2009 | 0716 | 11/16/2009 | 1700 |
Subject: | NSA/MWR/C2 - Missing data |
DataStreams: | nsamwrlosC2.b1, nsamwrtipC2.a1 |
Description: | Data are missing and unrecoverable. |
Measurements: | nsamwrlosC2.b1:
nsamwrtipC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/02/2008 | 0000 | 06/04/2008 | 2200 |
Subject: | NSA/MWR/C1 - Spikes in air temperature readings |
DataStreams: | nsamwrlosC1.b1, nsamwrtipC1.a1 |
Description: | During this month there are occasional negative spikes in the Tkair variable. The problem may be corrosion in the temperature sensor or the infiltration of water from melting snow. The dewblower was replaced and a new sensor installed |
Measurements: | nsamwrlosC1.b1:
nsamwrtipC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/15/2008 | 1500 | 11/16/2009 | 1600 |
Subject: | NSA/MWR/C2 - Possible bias on measurements |
DataStreams: | nsamwrlosC2.b1, nsamwrtipC2.a1 |
Description: | This instrument was refurbished at the the vendor's facility in 2008 and then sent to the SGP for side-by-side comparison with another MWR. During the time the instrument was at the SGP, it was noticed that the 23.8-GHz measurements were slightly warmer than those from radiometer SN10 operating at the SGP Central Facility. A comparison with radiosonde measurements confirmed the slight change in the measurements. An explanation of the bias and comparison with radiosonde measurements and radiometer SN 10 is given in the mentor's monthly data review for the month of April 2008. Since there aren't radiosondes at NSA.C2, it is difficult to work around this problem. Based on comparison at the SGP, the bias in the 23.8-GHz channel was quantified to be ~1.5 K. Users can attempt to subtract this amount from the 23.8-GHz measurements. Alternatively, use the retrieved PWV and LWV keeping in mind that there is a possible overestimation of PWV of ~1 mm. On 11/16/2009 after a hardware failure of the radiometer a spare radiometer (SN15) was installed at the site. |
Measurements: | nsamwrlosC2.b1:
nsamwrtipC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/06/2008 | 2200 | 06/20/2008 | 0200 |
Subject: | NSA/MWR/C1 - Missing surface air temperature data |
DataStreams: | nsamwrlosC1.b1, nsamwrtipC1.a1 |
Description: | Some wires in the dewblower were not correctly configured. |
Measurements: | nsamwrlosC1.b1:
nsamwrtipC1.a1:
|