DQR ID | Subject | Data Streams Affected |
---|---|---|
D040126.3 | SGP/SIRS/E21 - False signal | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
D040205.1 | SGP/SIRS/E1/E2/E3/E5/E8 - Snow on Radiometers | sgpsirs20sE1.a0, sgpsirs20sE2.a0, sgpsirs20sE3.a0, sgpsirs20sE5.a0, sgpsirs20sE8.a0, sgpsirsE1.00, sgpsirsE1.b1, sgpsirsE2.00, sgpsirsE2.b1, sgpsirsE3.00, sgpsirsE3.b1, sgpsirsE5.00, sgpsirsE5.b1, sgpsirsE8.00, sgpsirsE8.b1 |
D040226.1 | SGP/SIRS/E9 - PSP dome contamination | sgpsirs20sE9.a0, sgpsirsE9.00, sgpsirsE9.b1 |
D040226.2 | SGP/SIRS/E11 - PSP dome contamination | sgpsirs20sE11.a0, sgpsirsE11.00, sgpsirsE11.b1 |
D040227.2 | SGP/SIRS/E16 - Tracker Misaligned | sgpsirs20sE16.a0, sgpsirsE16.b1 |
D040227.3 | SGP/SIRS/E2 - Reprocess: Incorrect shortwave radiometer calibration coefficients | sgpsirsE2.00, sgpsirsE2.b1 |
D040227.4 | SGP/SIRS/E15 - PSP dome contamination | sgpsirs20sE15.a0, sgpsirsE15.b1 |
D040229.2 | SGP/SIRS/E21 - Shadowband Misalignment | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
D040303.1 | SGP/SIRS/E16 - PSP Dome Contamination | sgpsirs20sE16.a0, sgpsirsE16.b1 |
D040320.1 | SGP/SIRS/E5 - anomalously low NIP readings | sgpsirs20sE5.a0, sgpsirsE5.00, sgpsirsE5.b1 |
D040320.2 | SGP/SIRS/E8 - Possible Contamination of DS PSP instrument | sgpsirs20sE8.a0, sgpsirsE8.00, sgpsirsE8.b1 |
D040322.1 | SGP/SIRS/C1 - Discrepancy between measured and derived downwelling shortwave hemispheric | sgpsirs20sC1.a0, sgpsirsC1.b1 |
D040329.1 | SGP/SIRS/E21 - Instrument logger time problem, Unknown | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
D040405.2 | SGP/SIRS/E7 - PSP dome contamination | sgpsirs20sE7.a0, sgpsirsE7.b1 |
D040420.2 | SGP/SIRS/E5 - Dirt on PSP Dome | sgpsirs20sE5.a0, sgpsirsE5.00, sgpsirsE5.b1 |
D040420.4 | SGP/SIRS/E27 - incorrect tracking | sgpsirs20sE27.a0, sgpsirsE27.00, sgpsirsE27.b1 |
D040615.5 | SGP/SIRS/E12 - Incorrect Times | sgp15swfanalsirs1longE12.c1, sgp1swfanalsirs1longE12.c1, sgpsirs20sE12.a0, sgpsirsE12.00, sgpsirsE12.b1 |
D040621.3 | SGP/SIRS/E7 - Reprocessed: Corrected downwelling longwave calibrations | sgpsirsE7.b1 |
D040712.3 | SGP/SIRS/E24 - NIP shaded near sunrise | sgpsirs20sE24.a0, sgpsirsE24.b1 |
D040831.1 | SGP/SIRS/E1 - Reprocess: Incorrect shortwave radiometer calibration coefficients | sgpsirsE1.00, sgpsirsE1.b1 |
D040831.2 | SGP/SIRS/E7 - Reprocess: Incorrect shortwave radiometer calibration coefficients | sgpsirsE7.00, sgpsirsE7.b1 |
D040831.3 | SGP/SIRS/E8 - Reprocess: Incorrect shortwave radiometer calibration coefficients | sgpsirsE8.00, sgpsirsE8.b1 |
D040831.4 | SGP/SIRS/E10 - Reprocess: Incorrect shortwave radiometer calibration coefficients | sgpsirsE10.00, sgpsirsE10.b1 |
D040831.5 | SGP/SIRS/E11 - Reprocess: Incorrect shortwave radiometer calibration coefficients | sgpsirsE11.00, sgpsirsE11.b1 |
D060630.10 | SGP/SIRS/E2 - Reprocessed: Longwave Calibration error | sgpsirsE2.b1 |
D060630.11 | SGP/SIRS/E3 - Reprocessed: Longwave Calibration error | sgpsirsE3.b1 |
D060630.12 | SGP/SIRS/E4 - Reprocessed: Longwave Calibration error | sgpsirsE4.b1 |
D060630.13 | SGP/SIRS/E5 - Reprocessed: Longwave Calibration error | sgpsirsE5.b1 |
D060630.14 | SGP/SIRS/E6 - Reprocessed: Longwave Calibration error | sgpsirsE6.b1 |
D060630.15 | SGP/SIRS/E7 - Reprocessed: Longwave Calibration error | sgpsirsE7.b1 |
D060630.16 | SGP/SIRS/E8 - Reprocessed: Longwave Calibration error | sgpsirsE8.b1 |
D060630.17 | SGP/SIRS/E9 - Reprocessed: Longwave Calibration error | sgpsirsE9.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 |
D060630.26 | SGP/SIRS/E20 - Reprocessed: Longwave Calibration error | sgpsirsE20.b1 |
D060630.27 | SGP/SIRS/E21 - Reprocessed: Longwave Calibration error | sgpsirsE21.b1 |
D060630.28 | SGP/SIRS/E22 - Reprocessed: Longwave Calibration error | sgpsirsE22.b1 |
D060630.29 | SGP/SIRS/E24 - Reprocessed: Longwave Calibration error | sgpsirsE24.b1 |
D060630.30 | SGP/SIRS/E27 - Reprocessed: Longwave Calibration error | sgpsirsE27.b1 |
D060630.8 | SGP/SIRS/C1 - Reprocessed: Longwave Calibration error | sgpsirsC1.b1 |
D060630.9 | SGP/SIRS/E1 - Reprocessed: Longwave Calibration error | sgpsirsE1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/19/2003 | 0000 | 02/26/2004 | 2359 |
Subject: | SGP/SIRS/E21 - False signal |
DataStreams: | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
Description: | During clear-sky conditions, downwelling shortwave values spike downward approximately 50 to 200 W/m^2 around 22:15 UTC for about 15 minutes. This problem occurs at about the same time for the same duration each day during the indicated period of the year. This effect is due to a shadow from the Rotating Bird Deterrent (RBD) installed earlier in the year to prevent extensive bird droppings at the site. The RBD is installed at such a location that it will partially shade the downwelling shortwave PSP from 19 October to 23 February of the year. |
Measurements: | sgpsirsE21.00:
sgpsirs20sE21.a0:
sgpsirsE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/02/2004 | 1200 | 02/02/2004 | 2000 |
Subject: | SGP/SIRS/E1/E2/E3/E5/E8 - Snow on Radiometers |
DataStreams: | sgpsirs20sE1.a0, sgpsirs20sE2.a0, sgpsirs20sE3.a0, sgpsirs20sE5.a0, sgpsirs20sE8.a0, sgpsirsE1.00, sgpsirsE1.b1, sgpsirsE2.00, sgpsirsE2.b1, sgpsirsE3.00, sgpsirsE3.b1, sgpsirsE5.00, sgpsirsE5.b1, sgpsirsE8.00, sgpsirsE8.b1 |
Description: | A large discrepancy between the measured values of downwelling hemispheric shortwave radiation and the derived values occurred on 2/02 at the listed sites. The difference is on the order of 200 Wm^(-2) at E2 and to a lesser extent at the other affected stations. This problem most likely resulted from a previous day or night snow/ice accumulation on the Direct(NIP), Downwelling Sortwave(PSP) and/or Downwelling Diffuse(8-48) instruments. During the morning hours of 02/02, Approx 1300-2000GMT, snow/ice was covering one or more of these three instruments resulting in faulty readings and incorrect derived downwelling shortwave values as well. Instrument readings indicate the problem resolved itself later in the day through normal meltoff. |
Measurements: | sgpsirs20sE5.a0:
sgpsirsE2.b1:
sgpsirsE1.00:
sgpsirsE2.00:
sgpsirs20sE3.a0:
sgpsirsE3.b1:
sgpsirs20sE1.a0:
sgpsirsE8.00:
sgpsirsE3.00:
sgpsirsE5.b1:
sgpsirsE1.b1:
sgpsirsE5.00:
sgpsirs20sE2.a0:
sgpsirs20sE8.a0:
sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/20/2004 | 1600 | 02/23/2004 | 0500 |
Subject: | SGP/SIRS/E9 - PSP dome contamination |
DataStreams: | sgpsirs20sE9.a0, sgpsirsE9.00, sgpsirsE9.b1 |
Description: | Measured values of diffuse shortwave downwelling radiation fluctuated below derived values of downwelling shortwave radiation by 50 W/m^2 during the afternoon hours under clear conditions. SMOS precipitation and wind speed data reveals rain and wind the night before on 02/20/03 0100 GMT probably contaminated the PSP dome with dirt. Precipitation of .25mm on 02/23/04 0300 seems to have effectively cleared the PSP dome since PSP data on 02/24/04 compares correctly to direct and diffuse components. |
Measurements: | sgpsirs20sE9.a0:
sgpsirsE9.b1:
sgpsirsE9.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/20/2004 | 1500 | 03/01/2004 | 1300 |
Subject: | SGP/SIRS/E11 - PSP dome contamination |
DataStreams: | sgpsirs20sE11.a0, sgpsirsE11.00, sgpsirsE11.b1 |
Description: | Measured values of diffuse shortwave downwelling radiation fluctuated below derived values of downwelling shortwave radiation during the afternoon hours under clear conditions, probably due to a dirty PSP dome. SMOS precipitation and wind speed data reveal rain and wind on 02/19/03 at 2300 GMT probably contaminated the PSP dome with dirt. Precipitation of .4mm on 02/29/04 1400 seems to have effectively cleared the PSP dome since PSP data on 03/01/04 compares correctly to direct and diffuse components. |
Measurements: | sgpsirsE11.b1:
sgpsirsE11.00:
sgpsirs20sE11.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/06/2004 | 2200 | 02/18/2004 | 1605 |
Subject: | SGP/SIRS/E16 - Tracker Misaligned |
DataStreams: | sgpsirs20sE16.a0, sgpsirsE16.b1 |
Description: | Direct Normal Shortwave (NIP) values may be reduced by tracker misalignment (tracker clock slow by 2 minutes 10 sec on 2/18/04). Downwelling Diffuse (DD) values may be increased by the tracker misalignment. Error amounts can not be accurately quantified. |
Measurements: | sgpsirsE16.b1:
sgpsirs20sE16.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/12/2004 | 1612 | 03/25/2004 | 1600 |
Subject: | SGP/SIRS/E2 - Reprocess: Incorrect shortwave radiometer calibration coefficients |
DataStreams: | sgpsirsE2.00, sgpsirsE2.b1 |
Description: | During the pyrgeometer instrument (PIR) changout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements were : downwelling diffuse (DD), upwelling shortwave(US), direct normal (NIP) and downwelling shortwave(DS) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)*118.11 US(corrected) = (US/113.19)*118.21 NIP(corrected)= (NIP/120.17)*119.08 DS(corrected) = (DS/118.46)*117.33 |
Measurements: | sgpsirsE2.b1:
sgpsirsE2.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/20/2004 | 1900 | 02/29/2004 | 1700 |
Subject: | SGP/SIRS/E15 - PSP dome contamination |
DataStreams: | sgpsirs20sE15.a0, sgpsirsE15.b1 |
Description: | PSP dome was dirty. Afternoon values of downwelling shortwave radiation were less than derived values by about 50 W/m^2. PSP values compare well to derived PSP values after precip event on 02/29/04 1300-1600 GMT. Maintenance on 03/02 1713 GMT revealed no unusual contamination. Precip on 02/29 likely effectively cleaned the PSP dome. |
Measurements: | sgpsirsE15.b1:
sgpsirs20sE15.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/20/2004 | 1300 | 03/03/2004 | 1300 |
Subject: | SGP/SIRS/E21 - Shadowband Misalignment |
DataStreams: | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
Description: | The NIP reported values close to zero and downwelling shortwave global and diffuse were equivalent due to tracker failure. Maintenance replaced tracker 2/27, but couldn't replace instruments until 03/02 2000 GMT due to bird poop contamination. |
Measurements: | sgpsirsE21.00:
sgpsirs20sE21.a0:
sgpsirsE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/06/2004 | 2200 | 02/18/2004 | 1605 |
Subject: | SGP/SIRS/E16 - PSP Dome Contamination |
DataStreams: | sgpsirs20sE16.a0, sgpsirsE16.b1 |
Description: | Downwelling Shortwave (DS) values near 22:00 GMT during clear skys are lower than expected due to contamination of pyranometer dome. A dime-sized spot of dirt was found on the southwest portion of the pyranometer dome. DS values for cloudy conditions during this period are also suspect, but the amount of irradiance reduction are not significant. |
Measurements: | sgpsirsE16.b1:
sgpsirs20sE16.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/17/2004 | 1843 | 03/28/2004 | 0300 |
Subject: | SGP/SIRS/E5 - anomalously low NIP readings |
DataStreams: | sgpsirs20sE5.a0, sgpsirsE5.00, sgpsirsE5.b1 |
Description: | Direct normal (NIP instrument) irradiance readings fall anomalously on 3/17 18:43GMT to less than half the expected values during clear sky conditions. NIP readings returned to normal on 3/28/04 12:00. Maintenance on 3/29/04 19:48 revealed no unusual contaminents. Precipitation on 3/27 (measured by the SMOS system) probably cleared the NIP window of contaminents before scheduled maintenance. |
Measurements: | sgpsirsE5.b1:
sgpsirs20sE5.a0:
sgpsirsE5.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/15/2004 | 1500 | 03/31/2004 | 1200 |
Subject: | SGP/SIRS/E8 - Possible Contamination of DS PSP instrument |
DataStreams: | sgpsirs20sE8.a0, sgpsirsE8.00, sgpsirsE8.b1 |
Description: | Downwelling hemispheric shortwave values drop at about 1500 GMT under clear sky conditions, typically from about 14:00GMT to 16:00GMT. This may be due to a dirty PSP but maintenance on 03/23/04 18:11 GMT revealed no more than typical light dust. The problem was essentially undetectable by 03/31/04 12:00. The time of day that the problem exists appears to be an exagerated PSP cosine response. No obvious reason presents why the problem appeared and then disappeared within this two week period. |
Measurements: | sgpsirsE8.00:
sgpsirs20sE8.a0:
sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/18/2004 | 1500 | 06/10/2004 | 2000 |
Subject: | SGP/SIRS/C1 - Discrepancy between measured and derived downwelling shortwave hemispheric |
DataStreams: | sgpsirs20sC1.a0, sgpsirsC1.b1 |
Description: | Measured values of downwelling hemispheric shortwave radiation were up to 40 W/m^2 higher than derived values during the afternoon hours. Analysis reveals that this is likely an artifact of the cosine response of the particular installed PSP coupled with typical uncertainties of this set of installed radiometers. That is, this particular instrument cluster seems to be producing cumulative errors on the high side of accepted values. The PSP contains the most uncertainty in measurement at this station. Users should use a derived value for the downwelling shortwave hemispheric irradiance (DS). Where DS = diffuse component + direct normal * cos(SZA) component described in the SIRS handbook Sec 7.2 available at: http://www.arm.gov/publications/tech_reports/handbooks/sirs_handbook.pdf |
Measurements: | sgpsirsC1.b1:
sgpsirs20sC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/21/2004 | 1200 | 03/24/2004 | 0200 |
Subject: | SGP/SIRS/E21 - Instrument logger time problem, Unknown |
DataStreams: | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
Description: | Values of diffuse hemispheric shortwave radiation differ from derived values by at most 70 Wm^(-2). The incident appears to be isolated to 3/21, 3/22, and 3/23. An estimation of solar noon using downwelling shortwave hemispheric irradiance from the PSP shows solar noon to oocur at around 1845GMT on 3/21. Calculated solar noon occurs at E21 at 1831GMT for 3/21/2004. There appears to be a time discrepancy in the datalogger for these dates. 04/01 is the next date with enough sun to determine solar noon and compare to calculated. The data from this date appears correct. Ronald Reed [rreed@ops.sgp.arm.gov] reports the logger did not receive any reportable time updates during the late March time period. We don't know what happened during these three dates but from 3/24 on data looks acceptable. |
Measurements: | sgpsirsE21.00:
sgpsirs20sE21.a0:
sgpsirsE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/30/2004 | 1430 | 04/06/2004 | 2100 |
Subject: | SGP/SIRS/E7 - PSP dome contamination |
DataStreams: | sgpsirs20sE7.a0, sgpsirsE7.b1 |
Description: | Values of hemispheric downwelling shortwave radiation differed from derived values by 45 W/m^2 on 03/30 around 1430 GMT under clear sky conditions due to dirt on the dome. Maintenance reported cleaning heavy dust from dome on 04/06 2030 GMT. |
Measurements: | sgpsirs20sE7.a0:
sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/11/2004 | 1200 | 05/05/2004 | 1645 |
Subject: | SGP/SIRS/E5 - Dirt on PSP Dome |
DataStreams: | sgpsirs20sE5.a0, sgpsirsE5.00, sgpsirsE5.b1 |
Description: | The PSP dome was dirty. The magnitude of differences from derived vs. measured values of downwelling shortwave were about 75 W/m^2. Preventative maintenance on 4/21 cleaned instruments but they became dirty again immediately afterward and continued to be so until the next PM on 5/5. |
Measurements: | sgpsirsE5.b1:
sgpsirs20sE5.a0:
sgpsirsE5.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/14/2004 | 1700 | 09/15/2004 | 1650 |
10/27/2004 | 1500 | 11/05/2004 | 1900 |
Subject: | SGP/SIRS/E27 - incorrect tracking |
DataStreams: | sgpsirs20sE27.a0, sgpsirsE27.00, sgpsirsE27.b1 |
Description: | The solar tracker at E27 was not functioning properly. The problem affected tracker mounted instruments: downwelling diffuse 8-48 and direct normal pyrheliometer NIP. After tracker adjustment on 4/14/2004 1700GMT the tracker stopped tracking properly during afternoon hours. Attempts to correct tracker operation throughout the failure period resulted in variations on incorrect tracker operation. No replacement tracker was available. After adjustment on 9/15/2004 the tracker problem was resolved. It is unclear what, other than typical az and zen tracker software changes by field techs, corrected the problem. This problem period corresponds to the first time range specified (4/14 to 9/15). On 10/27/2004 a replacement tracker was installed at E27. Technical difficulties kept tracker out of service until 11/05/2004. The replacement tracker at E27 was put into serice by the field techs on 11/05/2004 1830GMT. The tracker has been tracking correctly since this time. This problem period corresponds to the second time range (10/27 to 11/05). |
Measurements: | sgpsirsE27.00:
sgpsirsE27.b1:
sgpsirs20sE27.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/19/2004 | 2212 | 03/10/2004 | 2247 |
Subject: | SGP/SIRS/E12 - Incorrect Times |
DataStreams: | sgp15swfanalsirs1longE12.c1, sgp1swfanalsirs1longE12.c1, sgpsirs20sE12.a0, sgpsirsE12.00, sgpsirsE12.b1 |
Description: | The ntpd server (time adjustment) stopped working on Feb. 19th at 22:12:16 GMT, and the clock was corrected by -5600.177269 seconds on March 10th at 22:47 GMT. The recorded times for observations are off by amounts ranging from 0 seconds on Feb. 19th to 5600 seconds on March 10th. |
Measurements: | sgp1swfanalsirs1longE12.c1:
sgpsirsE12.b1:
sgp15swfanalsirs1longE12.c1:
sgpsirs20sE12.a0:
sgpsirsE12.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/20/2004 | 1825 | 06/29/2004 | 1915 |
Subject: | SGP/SIRS/E7 - Reprocessed: Corrected downwelling longwave calibrations |
DataStreams: | sgpsirsE7.b1 |
Description: | While attempting to correct calibration coefficients (see D040831.2) a new datalogger program was loaded which applied the wrong serial number and calibration coefficients to the downwelling longwave measurement. The data were reprocessed in September 2006 with the correct downwelling longwave calibrations and archived on 20061003. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/17/2003 | 1200 | 05/20/2003 | 1300 |
07/26/2003 | 1300 | 09/06/2003 | 1200 |
04/08/2004 | 1200 | 05/20/2004 | 1300 |
07/26/2004 | 1300 | 09/06/2004 | 1200 |
Subject: | SGP/SIRS/E24 - NIP shaded near sunrise |
DataStreams: | sgpsirs20sE24.a0, sgpsirsE24.b1 |
Description: | The NIP is shaded by the EF laptop computer enclosure near sunrise during parts of the Spring and Summer. This has occurred from 04/08 to 05/20 and from 07/26 to 09/06 every year since 2001 and will occur during these date ranges in the future as well. The shading occurs for a few minutes each day between 1200 and 1300 GMT depending on the time of the year. For the early dates, shading occurs a little after 1200 GMT and by 05/20 shading happens nearer to 1300 GMT. In late July the shading occurs near 1300 GMT and closer to 1200 GMT by 09/06. |
Measurements: | sgpsirs20sE24.a0:
sgpsirsE24.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/10/2004 | 2050 | 04/20/2004 | 2015 |
Subject: | SGP/SIRS/E1 - Reprocess: Incorrect shortwave radiometer calibration coefficients |
DataStreams: | sgpsirsE1.00, sgpsirsE1.b1 |
Description: | During the pyrgeometer instrument (PIR) changout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were : downwelling diffuse (8-48), upwelling shortwave(PSP), direct normal (NIP) and downwelling shortwave (PSP) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)*109.01 US(corrected) = (US/113.19)*111.47 NIP(corrected)= (NIP/120.17)*114.82 DS(corrected) = (DS/118.46)*116.51 |
Measurements: | sgpsirsE1.b1:
sgpsirsE1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/20/2004 | 1845 | 04/20/2004 | 1825 |
Subject: | SGP/SIRS/E7 - Reprocess: Incorrect shortwave radiometer calibration coefficients |
DataStreams: | sgpsirsE7.00, sgpsirsE7.b1 |
Description: | During the pyrgeometer instrument (PIR) changout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were : downwelling diffuse (8-48), upwelling shortwave(PSP), direct normal (NIP) and downwelling shortwave (PSP) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)*108.50 US(corrected) = (US/113.19)*110.10 NIP(corrected)= (NIP/120.17)*122.26 DS(corrected) = (DS/118.46)*122.56 |
Measurements: | sgpsirsE7.b1:
sgpsirsE7.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/10/2004 | 1825 | 04/20/2004 | 1825 |
Subject: | SGP/SIRS/E8 - Reprocess: Incorrect shortwave radiometer calibration coefficients |
DataStreams: | sgpsirsE8.00, sgpsirsE8.b1 |
Description: | During the pyrgeometer instrument (PIR) changeout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were: downwelling diffuse (8-48), upwelling shortwave (PSP), direct normal (NIP) and downwelling shortwave (PSP) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)*116.37 US(corrected) = (US/113.19)*121.78 NIP(corrected)= (NIP/120.17)*122.47 DS(corrected) = (DS/118.46)*122.34 |
Measurements: | sgpsirsE8.00:
sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/20/2004 | 1630 | 04/21/2004 | 1425 |
Subject: | SGP/SIRS/E10 - Reprocess: Incorrect shortwave radiometer calibration coefficients |
DataStreams: | sgpsirsE10.00, sgpsirsE10.b1 |
Description: | During the pyrgeometer instrument (PIR) changeout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were: downwelling diffuse (8-48), upwelling shortwave (PSP), direct normal (NIP) and downwelling shortwave (PSP) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For SGP/SIRS/E10 and each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)*114.63 US(corrected) = (US/113.19)*117.46 NIP(corrected)= (NIP/120.17)*119.26 DS(corrected) = (DS/118.46)*122.78 |
Measurements: | sgpsirsE10.b1:
sgpsirsE10.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/17/2004 | 1741 | 05/05/2004 | 0000 |
Subject: | SGP/SIRS/E11 - Reprocess: Incorrect shortwave radiometer calibration coefficients |
DataStreams: | sgpsirsE11.00, sgpsirsE11.b1 |
Description: | During the pyrgeometer instrument (PIR) changeout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were: downwelling diffuse (8-48), upwelling shortwave (PSP), direct normal (NIP) and downwelling shortwave (PSP) Field tech reports the datalogger program was corrected on 4/27/04. Archive data review shows this was not the case and the corrected datalogger program was uploaded sometime late day 5/4/04. The end date for this DQR was chosen to be 5/5/04 0000 the first full day of the correct datalogger program. Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)*123.27 US(corrected) = (US/113.19)*127.75 NIP(corrected)= (NIP/120.17)*126.69 DS(corrected) = (DS/118.46)*126.56 |
Measurements: | sgpsirsE11.b1:
sgpsirsE11.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/12/2004 | 1630 | 02/23/2005 | 1615 |
Subject: | SGP/SIRS/E2 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE2.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 instanteous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in September 2006. |
Measurements: | sgpsirsE2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/10/2004 | 1715 | 02/08/2006 | 1730 |
Subject: | SGP/SIRS/E3 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE3.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in March 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: | sgpsirsE3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/10/2004 | 1720 | 02/22/2006 | 1615 |
Subject: | SGP/SIRS/E4 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE4.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in March 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 October 2006. |
Measurements: | sgpsirsE4.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/10/2004 | 2030 | 02/22/2006 | 1817 |
Subject: | SGP/SIRS/E5 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE5.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in March 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 October 2006. |
Measurements: | sgpsirsE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/11/2004 | 1610 | 02/09/2006 | 1553 |
Subject: | SGP/SIRS/E6 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE6.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in March 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 October 2006. |
Measurements: | sgpsirsE6.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/20/2004 | 2000 | 02/07/2006 | 2005 |
Subject: | SGP/SIRS/E7 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE7.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 October 2006. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/10/2004 | 1845 | 02/21/2006 | 1840 |
Subject: | SGP/SIRS/E8 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE8.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 instanteous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in September 2006. |
Measurements: | sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/17/2003 | 1640 | 02/07/2006 | 1730 |
Subject: | SGP/SIRS/E9 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE9.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 instanteous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE9.b1:
|
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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/23/2003 | 2100 | 02/15/2006 | 2030 |
Subject: | SGP/SIRS/E20 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE20.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 November 2006. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/23/2003 | 1520 | 02/15/2006 | 1515 |
Subject: | SGP/SIRS/E21 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE21.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 November 2006. |
Measurements: | sgpsirsE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/23/2003 | 1830 | 02/15/2006 | 1741 |
Subject: | SGP/SIRS/E22 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE22.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 August 2006. |
Measurements: | sgpsirsE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/24/2003 | 1640 | 02/16/2006 | 1705 |
Subject: | SGP/SIRS/E24 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE24.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 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 October 2006. |
Measurements: | sgpsirsE24.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/16/2003 | 0002 | 02/15/2006 | 1750 |
Subject: | SGP/SIRS/E27 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE27.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in May 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: | sgpsirsE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/11/2003 | 1950 | 02/16/2006 | 1901 |
Subject: | SGP/SIRS/C1 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsC1.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: | sgpsirsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/10/2004 | 2055 | 02/21/2006 | 2007 |
Subject: | SGP/SIRS/E1 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE1.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 October 2006. |
Measurements: | sgpsirsE1.b1:
|