DQR ID | Subject | Data Streams Affected |
---|---|---|
D051229.1 | SGP/MFRSR/E9 - Missing data | sgpmfrsrE9.b1, sgpmfrsrlangleyE9.c1, sgpmfrsrlangplotE9.c1, sgpmfrsrE9.a0 |
D110418.6 | SGP/MWRHF/C1 - Reprocessed: Rapid drift in 90 GHz noise diode | sgpmwrhfC1.b1 |
D110513.6 | SGP/MFRSR/E6 - Shadowband slipped on motor shaft | sgpmfrsrE6.a0, sgpmfrsrE6.b1, sgpmfrsraod1michE6.c1, sgpmfrsrlangleyE6.c1, sgpmfrsrlangplotE6.c1 |
D110613.2 | SGP/SIRS/E15 - NIP failure | sgpsirs20sE15.a0, sgpsirsE15.b1 |
D110628.2 | SGP/SIRS/C1 - NIP failure | sgpsirs20sC1.a0, sgpsirsC1.b1 |
D110715.1 | SGP/MFRSR/E9 - Heater board failed | sgpmfrsraod1michE9.c1, sgpmfrsrlangleyE9.c1, sgpmfrsrlangplotE9.c1, sgpmfrsrE9.a0, sgpmfrsrE9.b1 |
D110725.2 | SGP/SIRS/E13 - NIP damaged by lightning strike | sgpsirs20sE13.a0, sgpsirsE13.b1 |
D110805.1 | SGP/SIRS/E10 - MUX failure | sgpsirs20sE10.a0, sgpsirsE10.b1 |
D110805.2 | SGP/SIRS/E20 - Upwelling LW incorrect | sgpsirs20sE20.a0, sgpsirsE20.b1 |
D110902.3 | SGP/SIRS/E20 - Downwelling LW incorrect | sgpsirs20sE20.a0, sgpsirsE20.b1 |
D111102.3 | SGP/MFRSR/E6 - Shadowband misalignment | sgpmfrsrE6.a0, sgpmfrsrE6.b1, sgpmfrsraod1michE6.c1, sgpmfrsrlangleyE6.c1, sgpmfrsrlangplotE6.c1 |
D120119.1 | SGP/MFRSR/E9 - Shadowband Misalignment | sgpmfrsrE9.a0, sgpmfrsrE9.b1, sgpmfrsraod1michE9.c1, sgpmfrsrlangleyE9.c1, sgpmfrsrlangplotE9.c1 |
D120302.2 | SGP/SIRS/C1 - Reprocess: Incorrect downwelling longwave calibration coefficient | sgpsirs20sC1.a0, sgpsirsC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/30/2002 | 1637 | 02/06/2002 | 0103 |
03/25/2003 | 1102 | 03/27/2003 | 1653 |
01/05/2005 | 0802 | 01/11/2005 | 1642 |
10/27/2006 | 0005 | 10/31/2006 | 2105 |
01/29/2008 | 1904 | 02/07/2008 | 2205 |
08/02/2003 | 1002 | 08/04/2003 | 1803 |
11/06/2000 | 1103 | 11/20/2000 | 1704 |
12/11/2000 | 0703 | 12/19/2000 | 1704 |
05/27/2001 | 1701 | 06/01/2001 | 1137 |
02/08/2008 | 1705 | 02/11/2008 | 2106 |
02/14/2008 | 2005 | 02/20/2008 | 2205 |
02/21/2008 | 1005 | 03/25/2008 | 1036 |
04/01/2008 | 1559 | 04/08/2008 | 1152 |
04/15/2008 | 1759 | 04/18/2008 | 1454 |
10/30/2009 | 1800 | 11/03/2009 | 1500 |
03/11/2010 | 0400 | 03/14/2010 | 1530 |
03/15/2010 | 1500 | 03/23/2010 | 0830 |
05/10/2010 | 1800 | 05/14/2010 | 1953 |
11/05/2010 | 0805 | 11/10/2010 | 1045 |
04/03/2011 | 2000 | 04/26/2011 | 1430 |
07/12/2011 | 2301 | 09/02/2011 | 1630 |
10/06/2011 | 1731 | 10/12/2011 | 2000 |
02/29/2000 | 0345 | 03/02/2000 | 0105 |
03/02/2000 | 1322 | 03/30/2000 | 1904 |
08/27/2000 | 1303 | 08/29/2000 | 1704 |
02/27/2000 | 1916 | 02/29/2000 | 0304 |
09/10/1999 | 1303 | 09/16/1999 | 1904 |
03/13/1999 | 2303 | 03/15/1999 | 1840 |
05/29/1998 | 2109 | 06/10/1998 | 1710 |
05/01/1998 | 1908 | 05/04/1998 | 1645 |
05/15/1998 | 0906 | 05/17/1998 | 0109 |
Subject: | SGP/MFRSR/E9 - Missing data |
DataStreams: | sgpmfrsrE9.b1, sgpmfrsrlangleyE9.c1, sgpmfrsrlangplotE9.c1, sgpmfrsrE9.a0 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgpmfrsrE9.b1:
sgpmfrsrE9.a0:
sgpmfrsrlangplotE9.c1:
sgpmfrsrlangleyE9.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/18/2011 | 0000 | 09/20/2011 | 2359 |
Subject: | SGP/MWRHF/C1 - Reprocessed: Rapid drift in 90 GHz noise diode |
DataStreams: | sgpmwrhfC1.b1 |
Description: | The noise diode of the 90 GHz channel was showing rapid drifts that affected the accuracy of the calibration. Although the algorithm is designed to follow slow drifts in the noise diode, in this case (because the variation was fast) the computed brightness temperature was probably about 4-5 K colder than it should be. Ingest was modified and data were reprocessed and archived in September 2011 |
Measurements: | sgpmwrhfC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/09/2011 | 1200 | 04/26/2011 | 1800 |
Subject: | SGP/MFRSR/E6 - Shadowband slipped on motor shaft |
DataStreams: | sgpmfrsrE6.a0, sgpmfrsrE6.b1, sgpmfrsraod1michE6.c1, sgpmfrsrlangleyE6.c1, sgpmfrsrlangplotE6.c1 |
Description: | Sometime before sunrise on 20110409 the shadowband slipped on the motor shaft. Do not use data covered by this DQR. |
Measurements: | sgpmfrsrE6.a0:
sgpmfrsrlangleyE6.c1:
sgpmfrsrE6.b1:
sgpmfrsraod1michE6.c1:
sgpmfrsrlangplotE6.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/11/2011 | 1900 | 05/02/2011 | 1513 |
06/17/2011 | 1100 | 06/28/2011 | 1600 |
Subject: | SGP/SIRS/E15 - NIP failure |
DataStreams: | sgpsirs20sE15.a0, sgpsirsE15.b1 |
Description: | The short_direct_normal (NIP instrument) cable failed during this time period. Data are not recoverable. Users can derive an estimate of direct normal values using the following formula: short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle) |
Measurements: | sgpsirs20sE15.a0:
sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/12/2011 | 0000 | 06/24/2011 | 1740 |
Subject: | SGP/SIRS/C1 - NIP failure |
DataStreams: | sgpsirs20sC1.a0, sgpsirsC1.b1 |
Description: | The short_direct_normal (NIP instrument) cable failed during this time period. Data are not recoverable. Users can derive an estimate of direct normal values using the following formula: short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle) |
Measurements: | sgpsirs20sC1.a0:
sgpsirsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/24/2011 | 2200 | 06/06/2011 | 2000 |
Subject: | SGP/MFRSR/E9 - Heater board failed |
DataStreams: | sgpmfrsraod1michE9.c1, sgpmfrsrlangleyE9.c1, sgpmfrsrlangplotE9.c1, sgpmfrsrE9.a0, sgpmfrsrE9.b1 |
Description: | The heater board failed. Do not use data covered by this DQR. |
Measurements: | sgpmfrsrE9.b1:
sgpmfrsrE9.a0:
sgpmfrsraod1michE9.c1:
sgpmfrsrlangplotE9.c1:
sgpmfrsrlangleyE9.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/12/2011 | 0539 | 06/14/2011 | 1556 |
Subject: | SGP/SIRS/E13 - NIP damaged by lightning strike |
DataStreams: | sgpsirs20sE13.a0, sgpsirsE13.b1 |
Description: | Apparent lightning strike in the instrument cluster area resulted in a failed NIP. The SIRS was due for calibration change outs so the US, DS, DD and NIP were replaced. The updated program was loaded at approximately 1730 GMT. An estimate of direct normal values can be derived using the following formula: short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle) |
Measurements: | sgpsirs20sE13.a0:
sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/18/2010 | 0933 | 06/22/2011 | 1713 |
Subject: | SGP/SIRS/E10 - MUX failure |
DataStreams: | sgpsirs20sE10.a0, sgpsirsE10.b1 |
Description: | Starting on 7/18/2010 there were periodic large dropouts in the downwelling shortwave hemipsheric data eventually leading to failures in all other SIRS data throughout the specified time range. Subsequent and extensive corrective maintenance was ongoing until 6/22/2011 when all measurement problems were resolved. Due to the extensive data disruption during this time range all data from this station is suspect. For shortwave datastreams,however, data review reveals that the VAP qcrad1longE10.c1 and s1 datastreams have accurately flagged and removed suspect shortwave data and provides the user the most accurate values available for short_direct_normal, down_short_diffuse and down_short_hemisp. The user is referred to the best estimate data in the s1 datastream. Longwave data after 8/18/2010 1800GMT is known to be biased from 0 to +20 W/m2. The user is advised to not use the down_long_hemisp_shaded and up_long_hemisp datastreams in any form from 8/18/2010 to 6/22/2011. The sgpqcradlong1E10 datastreams do not effectively flag potentially bad data. |
Measurements: | sgpsirsE10.b1:
sgpsirs20sE10.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/02/2011 | 2142 | 06/15/2011 | 1900 |
Subject: | SGP/SIRS/E20 - Upwelling LW incorrect |
DataStreams: | sgpsirs20sE20.a0, sgpsirsE20.b1 |
Description: | The UIR signal (up_long_hemisp datastream) had connection and cabling problems during the time period specified. Site ops personnel replaced the Multiplexer on 6/15/2011 at 19:00 resolving the problem. |
Measurements: | sgpsirsE20.b1:
sgpsirs20sE20.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/16/2011 | 2100 | 07/13/2011 | 1811 |
Subject: | SGP/SIRS/E20 - Downwelling LW incorrect |
DataStreams: | sgpsirs20sE20.a0, sgpsirsE20.b1 |
Description: | The downwelling longwave hemispheric shaded (down_long_hemisp_shaded ) values periodically were missing or incorrect. Connections on the Multiplexer were reseated on 7/13/2011 at 18:11 resolving the problem. |
Measurements: | sgpsirsE20.b1:
sgpsirs20sE20.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/31/2011 | 1800 | 08/16/2011 | 2359 |
Subject: | SGP/MFRSR/E6 - Shadowband misalignment |
DataStreams: | sgpmfrsrE6.a0, sgpmfrsrE6.b1, sgpmfrsraod1michE6.c1, sgpmfrsrlangleyE6.c1, sgpmfrsrlangplotE6.c1 |
Description: | A shading issue was impacting the data between 1800 UTC and 2359 UTC each day. Do not use data between those times. Data other times during the day are OK. |
Measurements: | sgpmfrsrE6.a0:
sgpmfrsrlangleyE6.c1:
sgpmfrsrE6.b1:
sgpmfrsraod1michE6.c1:
sgpmfrsrlangplotE6.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/19/2011 | 1115 | 10/06/2011 | 1730 |
Subject: | SGP/MFRSR/E9 - Shadowband Misalignment |
DataStreams: | sgpmfrsrE9.a0, sgpmfrsrE9.b1, sgpmfrsraod1michE9.c1, sgpmfrsrlangleyE9.c1, sgpmfrsrlangplotE9.c1 |
Description: | A shading problem began 20110619. Between the start date and 20110621 @ 1400 UTC the shadowband is not shading at all. An attempt was made to adjust the band on 20110621. This partially fixed the problem, with the hours from 1800 UTC to sunset affected. The morning data are OK after the attempted fix on 20110621. On 20110712 the instrument stopped functioning. |
Measurements: | sgpmfrsrE9.b1:
sgpmfrsrE9.a0:
sgpmfrsraod1michE9.c1:
sgpmfrsrlangplotE9.c1:
sgpmfrsrlangleyE9.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/14/2011 | 1730 | 01/04/2012 | 2045 |
Subject: | SGP/SIRS/C1 - Reprocess: Incorrect downwelling longwave calibration coefficient |
DataStreams: | sgpsirs20sC1.a0, sgpsirsC1.b1 |
Description: | Calibration coefficient for downwelling longwave was incorrect for the specified period. To correct the one minute data b1 datastream follow the procedure below: 1) Obtain the following variables from the 20s datastream for each one minute of the affected time range: inst_down_long_shaded_dome_resist (Rd) inst_down_long_shaded_case_resist (Rc) inst_down_long_hemisp_shaded_tp (tpDIR_mV) 2) using the 20s tp voltage in mV convert to uV. tpDIR[uV] = inst_down_long_hemisp_shaded_tp[mV]*1000[uV/mV] 3) For each 20s data entry convert Rd and Rc to temperature Td =1/ (a0 + (a1*LN (Rd*1000) + (a2*LN (Rd*1000)^3))) Tc = 1/ (a0 + (a1*LN (Rc*1000) + (a2*LN (Rc*1000)^3))) where a0 = 0.0010295 a1 = 0.0002391 a2 = 0.0000001568 4) Apply for each 20s data entry: (correct k1=0.2762) WinDIR(W/m2)= [0.2762*tpDIR] + Sigma*Tc^4 -4*Sigma*(Td^4 - Tc^4) where, Sigma = 5.6704E-8 (Stefan-Boltzman Const) 5) Generate new 1 minute average from the 3 20-second measurements |
Measurements: | sgpsirs20sC1.a0:
sgpsirsC1.b1:
|