DQR ID | Subject | Data Streams Affected |
---|---|---|
D021111.1 | NSA/SKYRAD/C1 - Unshaded PIR data unreasonable | nsaskyrad60sC1.a1 |
D021111.14 | NSA/SKYRAD/C1 - Shaded PIR data unreasonable | nsaskyrad60sC1.a1 |
D021111.16 | NSA/SKYRAD/C1 - Shaded PIR data unreasonable | nsaskyrad60sC1.a1 |
D021111.17 | NSA/SKYRAD/C1 - Unshaded and Shaded PIR data bad | nsaskyrad60sC1.a1 |
D021111.22 | NSA/SKYRAD/C1 - PIR data suspect | nsaskyrad60sC1.a1 |
D021111.23 | NSA/SKYRAD/C1 - Shaded PIR data incorrect | nsaskyrad60sC1.a1 |
D021111.3 | NSA/SKYRAD/C1 - Spikes in Unshaded PIR data | nsaskyrad60sC1.a1 |
D021111.4 | NSA/SKYRAD/C1 - Discontinuity in Unshaded PIR data | nsaskyrad60sC1.a1 |
D030510.2 | NSA/SKYRAD/C1 - IRT measurements during precipitation events | nsaskyrad60sC1.a1 |
D041027.8 | NSA/MFR10M/C1 - No data collected during winter | nsamfr10mC1.a0, nsamfr10mC1.b1 |
D080825.1 | NSA/SKYRAD/C1 - IRT signal bias | nsaskyrad60sC1.a1 |
D990924.2 | NSA/SKYRAD/C1 - Reprocess: IRT insufficiently heated | nsaskyrad60sC1.a1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/12/1999 | 2200 | 01/12/1999 | 2230 |
01/17/1999 | 0500 | 01/17/1999 | 0730 |
01/24/1999 | 1200 | 01/24/1999 | 1400 |
02/13/1999 | 0700 | 02/13/1999 | 2359 |
02/19/1999 | 0545 | 02/20/1999 | 1030 |
02/20/1999 | 2115 | 02/21/1999 | 0200 |
Subject: | NSA/SKYRAD/C1 - Unshaded PIR data unreasonable |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | Periods of very large negative values. Negative readings of thermistors caused concurrent calculation in logger of temperature to fail. |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/12/1999 | 2200 | 01/12/1999 | 2230 |
01/17/1999 | 0500 | 01/17/1999 | 0730 |
01/24/1999 | 1200 | 01/24/1999 | 1400 |
02/13/1999 | 0700 | 02/13/1999 | 2359 |
02/19/1999 | 0545 | 02/20/1999 | 1030 |
02/20/1999 | 2115 | 02/21/1999 | 0200 |
Subject: | NSA/SKYRAD/C1 - Shaded PIR data unreasonable |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | Periods of very large negative values. Negative readings of thermistors causes concurrent calculation in logger of temperature to fail. |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/11/1998 | 2225 | 12/11/1998 | 2235 |
12/15/1998 | 1800 | 12/15/1998 | 1810 |
12/16/1998 | 1810 | 12/16/1998 | 1815 |
02/16/1999 | 1945 | 02/16/1999 | 2010 |
02/17/1999 | 2145 | 02/17/1999 | 2200 |
03/02/1999 | 1825 | 03/02/1999 | 1835 |
03/09/1999 | 1830 | 03/09/1999 | 1840 |
03/10/1999 | 0340 | 03/10/1999 | 0350 |
Subject: | NSA/SKYRAD/C1 - Shaded PIR data unreasonable |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | There was a 10-25 W/m2 spike in data probably due to operator working around instrument or cleaning it. |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/17/1999 | 1700 | 01/17/1999 | 1815 |
Subject: | NSA/SKYRAD/C1 - Unshaded and Shaded PIR data bad |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | Large unreasonable spikes and some missing data points. Cause of problem unknown. |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/14/1998 | 0000 | 02/04/1999 | 2359 |
Subject: | NSA/SKYRAD/C1 - PIR data suspect |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | The PIR unshaded and the PIR shaded have a persistent offset between them, ranging from 0 to 10 W/m2. It is particularly apparent during clear sky. The line of sight of the PIRd is obstructed making it difficult to assess the problem. The instrument was moved to its proper location in early February. The problem seems to have resolved itself with the move. |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/11/1999 | 0000 | 02/11/1999 | 2359 |
Subject: | NSA/SKYRAD/C1 - Shaded PIR data incorrect |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | There were two sudden increases (about 50-100 W/m2) at 23:00 and 24:00. |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/01/1998 | 2200 | 12/01/1998 | 2359 |
01/28/1999 | 0145 | 01/28/1999 | 0200 |
03/02/1999 | 1820 | 03/02/1999 | 1835 |
03/10/1999 | 1740 | 03/10/1999 | 1750 |
03/13/1999 | 1745 | 03/13/1999 | 1755 |
Subject: | NSA/SKYRAD/C1 - Spikes in Unshaded PIR data |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | There was a 10-25 W/m2 spike in data probably due to operator working around instrument or cleaning it. |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/03/1999 | 2300 | 02/03/1999 | 2310 |
Subject: | NSA/SKYRAD/C1 - Discontinuity in Unshaded PIR data |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | There was a sudden increase in irradiance (from 140 to 190 W/m2) at 02/03/99 23:00. |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/14/1998 | 2330 | 03/03/2003 | 2359 |
Subject: | NSA/SKYRAD/C1 - IRT measurements during precipitation events |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | The IRT measurement of sky/cloud temperature was in question during precipitation events because rain or snow could accumulate in the upward-pointed lens barrel. This was corrected by reorienting the IRT to measure the sky temperature as reflected by a gold mirror. |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/16/1998 | 2336 | 03/15/1999 | 1858 |
11/18/1999 | 0213 | 02/03/2000 | 0119 |
11/01/2000 | 1849 | 03/13/2001 | 0249 |
11/08/2001 | 0106 | 03/14/2002 | 0105 |
11/07/2002 | 2302 | 04/17/2003 | 0002 |
11/18/2003 | 1903 | 04/01/2004 | 2002 |
11/08/2004 | 2302 | 02/18/2005 | 1802 |
11/29/2005 | 1802 | 03/15/2006 | 0002 |
11/20/2006 | 2302 | 03/26/2007 | 1605 |
10/30/2007 | 2000 | 03/06/2008 | 1502 |
Subject: | NSA/MFR10M/C1 - No data collected during winter |
DataStreams: | nsamfr10mC1.a0, nsamfr10mC1.b1 |
Description: | The sun does not rise above the horizon at the NSA sites between November and January each year. During this time period, the MFR instruments are removed and returned to PNNL for maintenance and calibration. The instruments are generally re-installed in March. |
Measurements: | nsamfr10mC1.b1:
nsamfr10mC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/09/1998 | 0330 | 06/17/1999 | 2327 |
Subject: | NSA/SKYRAD/C1 - IRT signal bias |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | Additional heat tape that was installed around the IRT appears to have produced a negative bias of about 10 deg (at a sky temperature of -30C). This was corrected when the heat tape was replaced with thermostatically-controlled 75W heaters (that were still insufficient in maintaining the IRT above freezing - D990924.2). |
Measurements: | nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/14/1998 | 0130 | 12/21/2000 | 1925 |
Subject: | NSA/SKYRAD/C1 - Reprocess: IRT insufficiently heated |
DataStreams: | nsaskyrad60sC1.a1 |
Description: | IRT had insufficient heating to maintain an internal reference temperature above 0 degrees C. Measurements of sky temperature were over-estimated when instrument was below freezing. Data will be reprocessed, but users can correct data using the following correction factor: If T_reference < -5?C, then IRT_corrected = (IRT_original - 32.993K)/0.87238 where T_reference can be estimated with the ambient temperature (e.g. inst_down_long_hemisp_dome_temp or inst_down_long_dome_temp) |
Measurements: | nsaskyrad60sC1.a1:
|