DQR ID | Subject | Data Streams Affected |
---|---|---|
D010504.2 | NSA/MWR/C2 - Missing data | nsamwrlosC2.b1, nsamwrtipC2.a1 |
D080512.2 | NSA/MWR/C2 - Possible bias on measurements | nsamwrlosC2.b1, nsamwrtipC2.a1 |
D090417.1 | NSA/MWR/C1 - RFI screening test | nsamwrlosC1.b1, nsamwrtipC1.a1 |
D090417.5 | NSA/MWR/C1 - High noise in 23.8-GHz channel | nsamwrlosC1.b1, nsamwrtipC1.a1 |
D090611.1 | NSA/MWR/C1 - Intermittent air temperature readings | nsamwrlosC1.b1, nsamwrtipC1.a1 |
D090611.2 | NSA/MWR/C1 - Air temperature readings missing | nsamwrlosC1.b1, nsamwrtipC1.a1 |
D100224.5 | NSA/MWR/C2 - Radiometer unstable | nsamwrlosC2.b1, nsamwrtipC2.a1 |
D100326.1 | NSA/MWR/C1 - Elevated noise | nsamwrlosC1.b1, nsamwrtipC1.a1 |
D100830.2 | NSA/MWR/C2 - Temperature instability | nsamwrlosC2.b1, nsamwrtipC2.a1 |
D101025.1 | NSA/MWR/C1 - Missing 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 |
---|---|---|---|
04/15/2008 | 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 |
---|---|---|---|
04/15/2009 | 2100 | 04/15/2009 | 2300 |
04/16/2009 | 1715 | 04/16/2009 | 2200 |
Subject: | NSA/MWR/C1 - RFI screening test |
DataStreams: | nsamwrlosC1.b1, nsamwrtipC1.a1 |
Description: | The instrument was covered with a shield to test the effect on the RF interference that is affecting the measurements since February. The test was performed on 4/15 and 4/16 for a few hours. |
Measurements: | nsamwrlosC1.b1:
nsamwrtipC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/13/2009 | 0000 | 10/15/2009 | 1800 |
Subject: | NSA/MWR/C1 - High noise in 23.8-GHz channel |
DataStreams: | nsamwrlosC1.b1, nsamwrtipC1.a1 |
Description: | Starting approximately on February 13 the MWR experienced high level of noise in the 23.8 GHz channel. The spikes became more prominent around Feb 17 and increased after that date as well. The cause of the interference was identified as the nearby MWRP on Oct 13 and the instruments were realigned. |
Measurements: | nsamwrlosC1.b1:
nsamwrtipC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/23/2009 | 0000 | 05/26/2009 | 1900 |
Subject: | NSA/MWR/C1 - Intermittent air temperature readings |
DataStreams: | nsamwrlosC1.b1, nsamwrtipC1.a1 |
Description: | Starting on 5/23 the air temperature readings (tkair) were intermittent and had negative spikes |
Measurements: | nsamwrlosC1.b1:
nsamwrtipC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/26/2009 | 1900 | 06/10/2009 | 2300 |
Subject: | NSA/MWR/C1 - Air temperature readings missing |
DataStreams: | nsamwrlosC1.b1, nsamwrtipC1.a1 |
Description: | The air temperature readings (tkair) dropped on 5/26. The signal was restored on 6/10. |
Measurements: | nsamwrlosC1.b1:
nsamwrtipC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/2010 | 0000 | 01/14/2010 | 2300 |
Subject: | NSA/MWR/C2 - Radiometer unstable |
DataStreams: | nsamwrlosC2.b1, nsamwrtipC2.a1 |
Description: | The radiometer had problems maintaining the thermal stabilization between 1/6 and 1/14. |
Measurements: | nsamwrlosC2.b1:
nsamwrtipC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/10/2010 | 0000 | 02/20/2010 | 2359 |
Subject: | NSA/MWR/C1 - Elevated noise |
DataStreams: | nsamwrlosC1.b1, nsamwrtipC1.a1 |
Description: | The data have high noise levels. |
Measurements: | nsamwrlosC1.b1:
nsamwrtipC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/09/2010 | 0000 | 07/12/2010 | 2300 |
07/28/2010 | 0000 | 07/30/2010 | 2359 |
Subject: | NSA/MWR/C2 - Temperature instability |
DataStreams: | nsamwrlosC2.b1, nsamwrtipC2.a1 |
Description: | There was some temperature instability that could affect the calibration. Although the instability was brief users may find increased noise in the data or a slight deterioration of calibration accuracy during the indicated times. |
Measurements: | nsamwrlosC2.b1:
nsamwrtipC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/08/1998 | 1459 | 02/11/1998 | 2254 |
02/13/1998 | 1359 | 02/22/1998 | 2022 |
03/06/1998 | 1846 | 03/14/1998 | 0200 |
03/15/1998 | 2322 | 03/19/1998 | 0053 |
04/24/1998 | 1838 | 04/29/1998 | 2340 |
05/03/1998 | 1203 | 05/11/1998 | 2137 |
05/30/1998 | 1840 | 06/01/1998 | 1858 |
06/09/1998 | 2338 | 06/16/1998 | 2243 |
07/13/1998 | 0103 | 07/16/1998 | 1816 |
07/18/1998 | 1904 | 07/27/1998 | 2133 |
07/29/1998 | 0828 | 08/03/1998 | 1901 |
08/05/1998 | 0028 | 09/24/1998 | 2042 |
09/24/1998 | 2210 | 11/11/1998 | 1830 |
11/11/1998 | 1831 | 11/18/1998 | 1929 |
01/02/1999 | 0947 | 01/04/1999 | 1756 |
10/11/1999 | 2359 | 10/13/1999 | 2200 |
11/17/1999 | 0043 | 11/19/1999 | 0033 |
01/28/2000 | 1929 | 01/31/2000 | 1754 |
12/22/2000 | 2300 | 01/09/2001 | 2233 |
03/28/2001 | 2359 | 04/01/2001 | 0001 |
08/09/2001 | 0000 | 08/13/2001 | 0000 |
08/15/2001 | 0000 | 08/20/2001 | 0000 |
12/30/2001 | 2359 | 01/01/2002 | 0000 |
02/14/2002 | 2159 | 02/25/2002 | 2009 |
02/27/2002 | 0700 | 03/02/2002 | 0100 |
04/25/2002 | 1855 | 05/08/2002 | 2138 |
05/08/2002 | 2144 | 05/23/2002 | 1925 |
08/19/2002 | 1656 | 08/21/2002 | 1925 |
12/05/2002 | 2253 | 12/08/2002 | 2120 |
06/29/2003 | 1630 | 07/01/2003 | 2233 |
08/09/2003 | 0459 | 08/11/2003 | 1807 |
02/10/2004 | 0845 | 02/17/2004 | 0156 |
07/10/2004 | 2255 | 07/12/2004 | 1918 |
08/05/2005 | 1952 | 09/01/2005 | 1945 |
09/22/2005 | 0545 | 09/27/2005 | 2357 |
02/25/2006 | 0811 | 02/27/2006 | 1827 |
09/17/2009 | 2241 | 09/20/2009 | 1734 |
09/27/2010 | 0254 | 10/01/2010 | 1924 |
Subject: | NSA/MWR/C1 - Missing data |
DataStreams: | nsamwrlosC1.b1, nsamwrtipC1.a1 |
Description: | Data are missing and unrecoverable. |
Measurements: | nsamwrlosC1.b1:
nsamwrtipC1.a1:
|