| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D041206.1 | SGP/SIRS/E10 - tracker failure | sgpsirs20sE10.a0, sgpsirsE10.00, sgpsirsE10.b1 |
| D050109.3 | SGP/SIRS/E12 - Ice obscured NIP | sgpsirs20sE12.a0, sgpsirsE12.00, sgpsirsE12.b1 |
| D050114.5 | SGP/SIRS/E15 - Failed NIP cable | sgpsirs20sE15.a0, sgpsirsE15.00, sgpsirsE15.b1 |
| D050131.22 | SGP/SIRS/E11 - Ice storm | sgpsirs20sE11.a0, sgpsirsE11.b1 |
| D050131.23 | SGP/SIRS/E15 - Ice storm | sgpsirs20sE15.a0, sgpsirsE15.b1 |
| D050131.24 | SGP/SIRS/E16 - Ice storm | sgpsirs20sE16.a0, sgpsirsE16.b1 |
| D050205.4 | SGP/SIRS/E18 - Possible PSP dome contamination | sgpsirs20sE18.a0, sgpsirsE18.00, sgpsirsE18.b1 |
| D050206.3 | SGP/SIRS/E13 - Monthly Report | sgpsirsE13.b1 |
| D050429.1 | SGP/SIRS/E12 - Reprocess: Incorrect calibrations | sgpsirs20sE12.a0, sgpsirsE12.00, sgpsirsE12.b1 |
| D050601.1 | SGP/SIRS/E13 - Reprocess: incorrect calibrations | sgpsirs20sE13.a0, sgpsirsE13.00, sgpsirsE13.b1 |
| D060403.1 | SGP/SIRS/E11 - failed ventilator fan | sgpsirs20sE11.a0, sgpsirsE11.00, sgpsirsE11.b1 |
| D060630.18 | SGP/SIRS/E10 - Reprocessed: Longwave Calibration error | sgpsirsE10.b1 |
| D060630.19 | SGP/SIRS/E11 - Reprocessed: Longwave Calibration error | sgpsirsE11.b1 |
| D060630.20 | SGP/SIRS/E12 - Reprocessed: Longwave Calibration error | sgpsirsE12.b1 |
| D060630.21 | SGP/SIRS/E13 - Reprocessed: Longwave Calibration error | sgpsirsE13.b1 |
| D060630.22 | SGP/SIRS/E15 - Reprocessed: Longwave Calibration error | sgpsirsE15.b1 |
| D060630.23 | SGP/SIRS/E16 - Reprocessed: Longwave Calibration error | sgpsirsE16.b1 |
| D060630.24 | SGP/SIRS/E18 - Reprocessed: Longwave Calibration error | sgpsirsE18.b1 |
| D060630.25 | SGP/SIRS/E19 - Reprocessed: Longwave Calibration error | sgpsirsE19.b1 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/04/2004 | 1800 | 01/26/2005 | 1600 |
| Subject: | SGP/SIRS/E10 - tracker failure |
| DataStreams: | sgpsirs20sE10.a0, sgpsirsE10.00, sgpsirsE10.b1 |
| Description: | During the night of 11/05-06 2004 the tracker failed at this location. During CM on 12/01, power cycling returned the tracker to service. However, tracker was not properly tracking in the AM. Tracker failed again sometime near 01/01/2005. CM on reloaded the tracker program and realigned the tracker on 01/26/2005 1600GMT. It has been working correctly since this time. |
| Measurements: | sgpsirsE10.b1:
sgpsirsE10.00:
sgpsirs20sE10.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/06/2005 | 0000 | 01/07/2005 | 2359 |
| Subject: | SGP/SIRS/E12 - Ice obscured NIP |
| DataStreams: | sgpsirs20sE12.a0, sgpsirsE12.00, sgpsirsE12.b1 |
| Description: | During the morning hours of 01/06, the direct normal shortwave readings are anomalously low in clear sky conditions, causing very large differences (approaching/exceeding 300 W/m^2) between the downwelling shortwave hemispheric (DSH) readings and the derived downwelling shortwave hemispheric readings. It would appear the NIP window had iced over during the previous days storm. The NIP window appears to have cleared itself by the morning of 2005/01/08. |
| Measurements: | sgpsirsE12.b1:
sgpsirs20sE12.a0:
sgpsirsE12.00:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/09/2005 | 0849 | 01/18/2005 | 1900 |
| Subject: | SGP/SIRS/E15 - Failed NIP cable |
| DataStreams: | sgpsirs20sE15.a0, sgpsirsE15.00, sgpsirsE15.b1 |
| Description: | After the ice storm, the SHORT_DIRECT_NORMAL values were bad or
missing continuously. Corrective Maintenance on 01/18 found
the NIP cable had broken inside the Bendix connector. The NIP
cable was repaired and returned to service. |
| Measurements: | sgpsirsE15.00:
sgpsirsE15.b1:
sgpsirs20sE15.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/05/2005 | 0602 | 01/11/2005 | 1423 |
| Subject: | SGP/SIRS/E11 - Ice storm |
| DataStreams: | sgpsirs20sE11.a0, sgpsirsE11.b1 |
| Description: | Data missing due to ice storm. |
| Measurements: | sgpsirsE11.b1:
sgpsirs20sE11.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/05/2005 | 0202 | 01/09/2005 | 0848 |
| Subject: | SGP/SIRS/E15 - Ice storm |
| DataStreams: | sgpsirs20sE15.a0, sgpsirsE15.b1 |
| Description: | Data missing due to an ice storm. |
| Measurements: | sgpsirsE15.b1:
sgpsirs20sE15.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/05/2005 | 0602 | 01/09/2005 | 1349 |
| Subject: | SGP/SIRS/E16 - Ice storm |
| DataStreams: | sgpsirs20sE16.a0, sgpsirsE16.b1 |
| Description: | Data missing due to ice storm. |
| Measurements: | sgpsirsE16.b1:
sgpsirs20sE16.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/03/2005 | 1200 | 02/15/2005 | 2250 |
| Subject: | SGP/SIRS/E18 - Possible PSP dome contamination |
| DataStreams: | sgpsirs20sE18.a0, sgpsirsE18.00, sgpsirsE18.b1 |
| Description: | Downwelling shortwave hemispheric (DSH) measurements did not agree with derived DSH readings during the morning hours up to 1500GMT each clear day. PM cleaning on 2/16 2250 revealed nothing other than dirty water spots. A dirty or ice covered PSP dome may have been the cause, clearing itself before the PM crew arrived. |
| Measurements: | sgpsirs20sE18.a0:
sgpsirsE18.b1:
sgpsirsE18.00:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/01/2004 | 0000 | 01/01/2005 | 0000 |
| Subject: | SGP/SIRS/E13 - Monthly Report |
| DataStreams: | sgpsirsE13.b1 |
| Description: | :Data quality this site-month is good. The offset for the Global PSP is about -7 W/m^2. The dominant problem here is the daytime 3 component problem. Direct and Diffuse are always too high and Global is too low. The problem occurs around the time that the testing regime switches from twilight to daytime testing regimes or from daytime to twilight. The flags occur in significant numbers on the 1st - 5th, 7th - 20th, 24th - 28th, 30th, and 31st. The failures vary in magnitude and duration. The worst flags for a particular respect to this problem. Global goes below daytime empirical limits on both the 5th and 6th for substantial periods of time. Diffuse also goes below daytime empirical limits on the 6th in the afternoon. Upwelling Longwave is below empirical limits on the 24th. This may not be a problem, as many sites exhibited the same problem on the same night. Exceptionally cold temperatures may be the cause. |
| Measurements: | sgpsirsE13.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/26/2005 | 1726 | 05/03/2005 | 1840 |
| Subject: | SGP/SIRS/E12 - Reprocess: Incorrect calibrations |
| DataStreams: | sgpsirs20sE12.a0, sgpsirsE12.00, sgpsirsE12.b1 |
| Description: | During site corrective maintenance to resolve an Extended Facility data collection problem, the SIRS.E12 datalogger was power cycled (1725 GMT). The datalogger reverted to an old SIRS program with incorrect S/Ns and calibration coefficients for all instruments at this station. The SW data can be recalibrated as follows: First divide value by incorrectly applied cal coeff (first number) then multiply by correct cal coeff (second number) down_short_diffuse_hemisp 107.27 118.68 up_short_hemisp 113.19 127.95 short_direct_normal 120.17 120.52 down_short_hemisp 118.46 102.11 The LW data were recalibrated and reprocessed as part of a larger LW calibration task. The reprocessed data were archived in October 2006. |
| Measurements: | sgpsirsE12.b1:
sgpsirs20sE12.a0:
sgpsirsE12.00:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/25/2005 | 1409 | 06/02/2005 | 2205 |
| Subject: | SGP/SIRS/E13 - Reprocess: incorrect calibrations |
| DataStreams: | sgpsirs20sE13.a0, sgpsirsE13.00, sgpsirsE13.b1 |
| Description: | After a long data gap on 5/25/2005, presumably a power outage, the following datastreams
were showing incorrect values as well as incorrect calibration coefficients in the
datalogger program:
down_long_hemisp_shaded (downwelling PIR instrument)
up_long_hemisp (upwelling PIR instrument)
short_direct_normal (NIP instrument)
The SIRS.E13 datalogger was power cycled (6/2/2005 2200GMT) and the correct program loaded
into the SIRS datalogger and storage module.
The data during this time range can be recalibrated as follows:
First divide value by incorrectly applied cal coeff (first number) then multiply by
correct cal coeff (second number)
short_direct_normal 120.28 124.58
up_long_netir 0.2386 0.2595
down_long_netir 0.3052 0.2304
Reapply cal coeffs below using up_long_netIR(uV), inst_up_long_dome_temp(K),
inst_up_long_dome_temp(K) using procedure described in SIRS instrument manual.
up_long_hemisp
k0 -18.3400 W/m^2\n,
k1 0.2595 W/(m^2*uV)\n,
k2 1.0380 unitless\n,
k3 -2.7420 unitless\n,
kr 0.0007044 K/uV\n,
Reapply cal coeffs below using down_long_netIR(uV),inst_down_long_dome_temp
(K),inst_down_long_dome_temp(K).
down_long_hemisp_shaded
k0 -11.6300 W/m^2\n,
k1 0.2304 W/(m^2*uV)\n,
k2 1.0190 unitless\n,
k3 -2.4230 unitless\n,
kr 0.0007044 K/uV\n, |
| Measurements: | sgpsirsE13.b1:
sgpsirs20sE13.a0:
sgpsirsE13.00:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/01/2005 | 0000 | 04/04/2006 | 1545 |
| Subject: | SGP/SIRS/E11 - failed ventilator fan |
| DataStreams: | sgpsirs20sE11.a0, sgpsirsE11.00, sgpsirsE11.b1 |
| Description: | E11 downwelling hemispheric shortwave instrument (Eppley PSP) has shown larger and larger nighttime offsets (from -5 to -10 W/m2) since October. A failed ventilator fan was discovered during PM and replaced on 4/4/2006. |
| Measurements: | sgpsirsE11.b1:
sgpsirsE11.00:
sgpsirs20sE11.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/20/2004 | 1730 | 02/07/2006 | 2130 |
| Subject: | SGP/SIRS/E10 - Reprocessed: Longwave Calibration error |
| DataStreams: | sgpsirsE10.b1 |
| Description: | Modified pyrgeometer calibration procedures were implemented beginning in February 2004.
These modified procedures introduced a calibration bias in the longwave data. The previous
procedures were re-implemented at all sites between December 2005 and February 2006 to
restore proper calibrations.
The data collected while the incorrect procedures were in place have been reprocessed to
remove the calibration bias. The reprocessed 60 second averaged data are based on 3
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.
Still, these data are considered far superior to the originally processed data. The
reprocessed data were archived in August 2006. |
| Measurements: | sgpsirsE10.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/17/2004 | 1753 | 02/14/2006 | 2016 |
| Subject: | SGP/SIRS/E11 - Reprocessed: Longwave Calibration error |
| DataStreams: | sgpsirsE11.b1 |
| Description: | Modified pyrgeometer calibration procedures were implemented beginning in February 2004. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in August 2006. |
| Measurements: | sgpsirsE11.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/22/2003 | 1640 | 02/14/2006 | 1710 |
| Subject: | SGP/SIRS/E12 - Reprocessed: Longwave Calibration error |
| DataStreams: | sgpsirsE12.b1 |
| Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
| Measurements: | sgpsirsE12.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/11/2003 | 1935 | 02/16/2006 | 1905 |
| Subject: | SGP/SIRS/E13 - Reprocessed: Longwave Calibration error |
| DataStreams: | sgpsirsE13.b1 |
| Description: | Modified pyrgeometer calibration procedures were implemented beginning in December 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
| Measurements: | sgpsirsE13.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/22/2003 | 1650 | 02/14/2006 | 1806 |
| Subject: | SGP/SIRS/E15 - Reprocessed: Longwave Calibration error |
| DataStreams: | sgpsirsE15.b1 |
| Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
| Measurements: | sgpsirsE15.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/23/2003 | 1605 | 02/15/2006 | 1533 |
| Subject: | SGP/SIRS/E16 - Reprocessed: Longwave Calibration error |
| DataStreams: | sgpsirsE16.b1 |
| Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
| Measurements: | sgpsirsE16.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/22/2003 | 2200 | 02/14/2006 | 2100 |
| Subject: | SGP/SIRS/E18 - Reprocessed: Longwave Calibration error |
| DataStreams: | sgpsirsE18.b1 |
| Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
| Measurements: | sgpsirsE18.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/24/2003 | 1600 | 02/16/2006 | 1558 |
| Subject: | SGP/SIRS/E19 - Reprocessed: Longwave Calibration error |
| DataStreams: | sgpsirsE19.b1 |
| Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
| Measurements: | sgpsirsE19.b1:
|