DQR ID | Subject | Data Streams Affected |
---|---|---|
D030312.10 | SGP/MWR/C1 - Intermittent Negative Sky Brightness Temperatures | sgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.a1, sgpmwrlosC1.b1 |
D030609.1 | NSA/MFR10M/C2 - Head temp out of tolerance | nsamfr10mC2.00, nsamfr10mC2.b1 |
D030922.4 | SGP/SIRS/E27 - Tracker Misalignment | sgpsirs20sE27.a0, sgpsirsE27.00, sgpsirsE27.b1 |
D031016.1 | SGP/OKM/X1 - Station Change | sgp05okmX1.a1, sgp05okmX1.b1, sgp15okmX1.a1, sgp15okmX1.b1, sgpokmX1.01 |
D031020.3 | SGP/SIRS/E18 - Instrument noise problem | sgpsirs20sE18.a0, sgpsirsE18.00, sgpsirsE18.b1 |
D040223.6 | SGP/OKM/X1 - Overview of Automated Data Quality - January 2003 | sgp05okmX1.a1, sgp05okmX1.b1, sgp15okmX1.a1, sgp15okmX1.b1 |
D040420.4 | SGP/SIRS/E27 - incorrect tracking | sgpsirs20sE27.a0, sgpsirsE27.00, sgpsirsE27.b1 |
D040824.2 | TWP/SMET/C2 - Incorrect rainrate equation used. | twpsmet60sC2.b1 |
D040831.3 | SGP/SIRS/E8 - Reprocess: Incorrect shortwave radiometer calibration coefficients | sgpsirsE8.00, sgpsirsE8.b1 |
D041027.11 | NSA/NIMFR/C1 - No data collected during winter | nsanimfrC1.a0, nsanimfrC1.b1 |
D041028.2 | NSA/MFR10M/C2 - No data collected during winter | nsamfr10mC2.a0, nsamfr10mC2.b1 |
D041222.24 | NSA/MFR10M/C2 - Incorrect global metadata sensor_location | nsamfr10mC2.b1 |
D050106.4 | SGP/SIRS/C1 - Reprocess: UIR/DIR Incorrect calibration coefficients | sgpsirsC1.00, sgpsirsC1.b1 |
D050206.2 | SGP/SIRS/C1 - Monthly Summary | sgpsirsC1.b1 |
D050303.1 | SGP/SIRS/E2 - Reprocessed: Incorrect DIR calibration coefficients | sgpsirs20sE2.a0, sgpsirsE2.00, sgpsirsE2.b1 |
D050322.2 | TWP/SMET/C2 - Upper wind direction sensor failure | twpsmet60sC2.b1 |
D050502.16 | SGP/SIRS/E22 - SWFANAL Data description error | sgp15swfanalsirs1longE22.c1, sgp1swfanalsirs1longE22.c1 |
D050502.2 | SGP/SIRS/C1 - SWFANAL Data description error | sgp15swfanalsirs1longC1.c1, sgp1swfanalsirs1longC1.c1 |
D050722.1 | SGP/MWR/C1 - REPROCESS - Revised Retrieval Coefficients | sgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1, sgpqmemwrcolC1.c1 |
D060425.1 | SGP/EBBR/E27 - Sensible and Latent Heat Fluxes Incorrect | sgp15ebbrE27.b1, sgp30ebbrE27.b1, sgp5ebbrE27.b1 |
D060508.2 | SGP/EBBR/E8 - Sensible and Latent Heat Flux Suspect | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D060509.1 | TWP/GNDRAD/C3 - IRT failed | twpgndrad60sC3.b1 |
D060614.2 | TWP/SMET/C2 - Temp/RH probe failure | twpsmet60sC2.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 |
D060630.21 | 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 |
D060802.1 | SGP/SWATS/E12 - T_rise higher than QC checks | sgpswatsE12.b1 |
D060817.4 | NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa | nsamettwr4hC1.b1 |
D060818.1 | NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa | nsamettwr2hC2.b1 |
D061011.2 | TWP/SMET/C1 - Reprocess: Tipping bucket rain gauge added | twpsmet60sC1.b1 |
D061011.3 | TWP/SMET/C2 - Reprocess: Tipping bucket rain gauge added | twpsmet60sC2.b1 |
D061011.4 | TWP/SMET/C3 - Reprocess: Tipping bucket rain gauge added | twpsmet60sC3.b1 |
D061121.2 | SGP/SIRS/C1 - Upwelling SW cable problem | sgpsirs20sC1.a0, sgpsirsC1.00, sgpsirsC1.b1 |
D070130.2 | SGP/SIRS/E18 - Noise in upwelling longwave data | sgpsirs20sE18.a0, sgpsirsE18.b1 |
D070306.1 | SGP/SIRS/C1 - Reprocess: Incorrect calibration coefficients | sgpsirs20sC1.a0, sgpsirsC1.00, sgpsirsC1.b1 |
D070320.1 | SGP/SIRS/E22 - Reprocess: Incorrect calibration coefficients | sgpsirs20sE22.a0, sgpsirsE22.00, sgpsirsE22.b1 |
D070413.1 | NSA/METTWR/C1 - PWS Data Questionable | nsamettwr4hC1.b1 |
D070424.1 | SGP/SIRS/C1 - Upwelling LW cable problems | sgpsirs20sC1.a0, sgpsirsC1.00, sgpsirsC1.b1 |
D070521.1 | SGP/SMOS/E7 - Wind sensor binding at low wind speeds | sgp1440smosE7.b1, sgp1smosE7.b1, sgp30smosE7.b1 |
D070717.1 | SGP/RL/C1 - Invalid liquid water channel data | sgprlC1.a0 |
D070718.1 | SGP/SIRS/E5 - Intermittent missing upwelling longwave data | sgpsirs20sE5.a0, sgpsirsE5.b1 |
D070829.1 | SGP/SWATS/E4 - Failure of T_rise channel | sgpswatsE4.b1 |
D070917.2 | TWP/AERI/C2 - Reprocess: Incorrect lat/lon/alt | twpaerich1C2.b1, twpaerich2C2.b1, twpaeriengineerC2.b1, twpaerilblcloudsC2.c1, twpaerirawC2.00, twpaerisummaryC2.b1 |
D071025.1 | NSA/SKYRAD/C1 - Reprocessed: Incorrect calibration coefficient | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
D071115.1 | SGP/EBBR/E20 - Reprocess: Wind Direction 65 Degrees Low | sgp15ebbrE20.b1, sgp30ebbrE20.b1, sgp5ebbrE20.b1 |
D071220.1 | SGP/SIRS/E11 - Failed ventilator fans | sgpsirs20sE11.a0, sgpsirsE11.b1 |
D071221.2 | SGP/SIRS/E18 - Instrument noise problem | sgpsirs20sE18.a0, sgpsirsE18.b1 |
D080423.1 | TWP/AERI/C3 - Reprocess: Incorrect lat/lon/alt | twpaerich1C3.b1, twpaerich2C3.b1, twpaeriengineerC3.b1, twpaerisummaryC3.b1 |
D080424.2 | SGP/AERI/E14 - Reprocess: Incorrect altitude reported | sgpaerich1E14.b1, sgpaerich2E14.b1, sgpaeriengineerE14.b1, sgpaerisummaryE14.b1 |
D080627.1 | SGP/SIRS/E21 - Ventilator Fan Failure | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
D080630.1 | NSA/SKYRAD/C1 - Tracker inoperative | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
D080703.10 | SGP/MFRSR/En - Incorrect alltime units | sgpmfrsrE10.b1, sgpmfrsrE11.b1, sgpmfrsrE12.b1, sgpmfrsrE15.b1, sgpmfrsrE16.b1, sgpmfrsrE18.b1, sgpmfrsrE19.b1, sgpmfrsrE2.b1, sgpmfrsrE22.b1, sgpmfrsrE24.b1, sgpmfrsrE27.b1, sgpmfrsrE3.b1, sgpmfrsrE4.b1, sgpmfrsrE5.b1, sgpmfrsrE6.b1, sgpmfrsrE7.b1, sgpmfrsrE8.b1, sgpmfrsrE9.b1 |
D951005.4 | SGP/MWR/C1 - Valid LWP > 1mm excluded from 5 min avgs | sgp5mwravgC1.c1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/17/1999 | 1800 | 07/31/2002 | 2034 |
Subject: | SGP/MWR/C1 - Intermittent Negative Sky Brightness Temperatures |
DataStreams: | sgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.a1, sgpmwrlosC1.b1 |
Description: | Several related and recurring problems with the SGP MWRs have been reported dating back to 1999. These problems were due to the occurrence of blackbody signals (in counts) that were half of those expected. The symptoms included noisy data (especially at Purcell), spikes in the data (especially at Vici), negative brightness temperatures, and apparent loss of serial communication between the computer and the radiometer, which results in a self-termination of the MWR program (especially at the CF). Because these all initially appeared to be hardware-related problems, the instrument mentor and SGP site operations personnel (1) repeatedly cleaned and replaced the fiber optic comm. components, (2) swapped radiometers, (3) sent radiometers back to Radiometrics for evaluation (which has not revealed any instrument problems), and (4) reconfigured the computer's operating system. Despite several attempts to isolate and correct it, the problem persisted. It became apparent that some component of the Windows98 configuration conflicted with the DOS-based MWR program or affected the serial port or the contents of the serial port buffer. This problem was finally corrected by upgrading the MWR software with a new Windows-compatible program. |
Measurements: | sgp5mwravgC1.c1:
sgpmwrlosC1.b1:
sgp1mwravgC1.c1:
sgpmwrlosC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/03/2003 | 0000 | 07/02/2003 | 2102 |
Subject: | NSA/MFR10M/C2 - Head temp out of tolerance |
DataStreams: | nsamfr10mC2.00, nsamfr10mC2.b1 |
Description: | Beginning on 06/03, the 415 nm channel appears to be erratic or noisy at times, which does not coincide with the other channels. Maintenance on 07/02 corrected this problem. head_temp readings occasionally spike or are erratic, especially between 1500 and 2000 UTC. On 06/17, head_temp readings became ambient due to a bad signal cable connection. Maintenance on 07/02 ended this problem as well. Due to the head_temp readings becoming largely out of tolerance, all channel readings should be considered questionable, especially after 06/17. |
Measurements: | nsamfr10mC2.00:
nsamfr10mC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/14/2003 | 1200 | 10/15/2003 | 1730 |
Subject: | SGP/SIRS/E27 - Tracker Misalignment |
DataStreams: | sgpsirs20sE27.a0, sgpsirsE27.00, sgpsirsE27.b1 |
Description: | Suntracker failed at this facility. The suntracker was reset on 9/17, but this only temporarily fixed the problem and the tracker began failing again 9/18. Tracker was reset and realigned on 10/15/03 17:30GMT and has been operating properly since. |
Measurements: | sgpsirsE27.00:
sgpsirsE27.b1:
sgpsirs20sE27.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/1994 | 0000 | 09/28/2003 | 2359 |
Subject: | SGP/OKM/X1 - Station Change |
DataStreams: | sgp05okmX1.a1, sgp05okmX1.b1, sgp15okmX1.a1, sgp15okmX1.b1, sgpokmX1.01 |
Description: | The Mesonet station near Marshall was moved on September 25, 2003 to improve accessiblity for the Mesonet technicians who visit and maintain the site. The new site has the code MRSH. It replaces the old Marshall site that had the code MARS. Since the latitude and longitude of the stations are included in the cdf file, users of these data should not have a problem. |
Measurements: | sgp15okmX1.b1:
sgp05okmX1.b1:
sgp05okmX1.a1:
sgp15okmX1.a1:
sgpokmX1.01:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/2003 | 1000 | 10/20/2003 | 0000 |
Subject: | SGP/SIRS/E18 - Instrument noise problem |
DataStreams: | sgpsirs20sE18.a0, sgpsirsE18.00, sgpsirsE18.b1 |
Description: | Upwelling longwave data was somewhat noisy during this period. There was a direct relation to the case and dome thermistor measurements for the upwelling longwave PIR (UIR). Data quality does not appear to be greatly affected overall, though instantaneous values had greater than usual variability. The noise disappeared on 10/19. |
Measurements: | sgpsirs20sE18.a0:
sgpsirsE18.b1:
sgpsirsE18.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/2003 | 0000 | 01/31/2003 | 2359 |
Subject: | SGP/OKM/X1 - Overview of Automated Data Quality - January 2003 |
DataStreams: | sgp05okmX1.a1, sgp05okmX1.b1, sgp15okmX1.a1, sgp15okmX1.b1 |
Description: | Below is a link to an overview from Janet Martinez, the Mesonet QA manager of the automated quality assurance results for the January 2003 Oklahoma Mesonet Data. http://www.db.arm.gov/~pcdmgr/post_script_attachments/sgpokmqaX1.a1.20030101.000000.htm |
Measurements: | sgp15okmX1.b1:
sgp05okmX1.b1:
sgp05okmX1.a1:
sgp15okmX1.a1:
|
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 |
---|---|---|---|
07/07/2004 | 0137 | 08/17/2004 | 2157 |
Subject: | TWP/SMET/C2 - Incorrect rainrate equation used. |
DataStreams: | twpsmet60sC2.b1 |
Description: | There are two different Optical Raingages in use at the TWP sites. The incorrect equation was used at this site. The incorrect equation is (25*(V^1.87)) - 0.15. The correct equation is (20*(V^2)) - 0.05. The correct equation was installed. |
Measurements: | twpsmet60sC2.b1:
|
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 |
---|---|---|---|
11/16/1998 | 2336 | 03/16/1999 | 2042 |
11/18/1999 | 0250 | 02/03/2000 | 0048 |
11/01/2000 | 1802 | 04/25/2001 | 2328 |
11/06/2001 | 2310 | 03/15/2002 | 0210 |
11/07/2002 | 1903 | 03/06/2003 | 1502 |
11/17/2003 | 2303 | 04/06/2004 | 1702 |
11/08/2004 | 2302 | 02/17/2005 | 2002 |
11/28/2005 | 2303 | 03/14/2006 | 2002 |
11/20/2006 | 2202 | 03/20/2007 | 0002 |
10/31/2007 | 0003 | 03/06/2008 | 1502 |
Subject: | NSA/NIMFR/C1 - No data collected during winter |
DataStreams: | nsanimfrC1.a0, nsanimfrC1.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: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/02/2001 | 2233 | 03/21/2002 | 2333 |
04/27/2002 | 2203 | 03/18/2003 | 2101 |
11/11/2003 | 2003 | 04/04/2004 | 0402 |
11/17/2004 | 2202 | 02/16/2005 | 2020 |
11/25/2005 | 1902 | 03/14/2006 | 2202 |
11/21/2006 | 2202 | 02/25/2007 | 2302 |
11/24/2007 | 2000 | 02/03/2008 | 0302 |
Subject: | NSA/MFR10M/C2 - No data collected during winter |
DataStreams: | nsamfr10mC2.a0, nsamfr10mC2.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: | nsamfr10mC2.a0:
nsamfr10mC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/19/2003 | 0000 | 08/13/2003 | 2359 |
Subject: | NSA/MFR10M/C2 - Incorrect global metadata sensor_location |
DataStreams: | nsamfr10mC2.b1 |
Description: | During the time period specified, the global metadata attribute sensor_location was incorrectly reported as 60m. The correct value is 10m. |
Measurements: | nsamfr10mC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/27/2004 | 1429 | 01/07/2005 | 1623 |
Subject: | SGP/SIRS/C1 - Reprocess: UIR/DIR Incorrect calibration coefficients |
DataStreams: | sgpsirsC1.00, sgpsirsC1.b1 |
Description: | It appears the datalogger program at SIRS/C1 was automatically updated, unbeknownst to anyone, on 9/27/20041423GMT with an older program with incorrect UIR and DIR calibration coefficients. The correct and incorrect cal coeffs for the UIR and DIR pyrgeometers during this DQR period were: incorrectUIR correctUIR K0 -12.84 -13.00 K1 .2250 0.2573 K2 1.024 1.024 K3 -1.9280 -1.8050 incorrectDIR correctDIR K0 -13.15 -26.89 K1 0.2374 0.2967 K2 1.0260 1.0560 K3 -2.478 -3.3080 |
Measurements: | sgpsirsC1.b1:
sgpsirsC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/01/2004 | 0000 | 01/01/2005 | 0000 |
Subject: | SGP/SIRS/C1 - Monthly Summary |
DataStreams: | sgpsirsC1.b1 |
Description: | 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, 8th - 20th, 24th - 28th, 30th, and 31st. The failures vary in magnitude and duration. The worst flags for a particular day is typically high level yellow, with 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 evening. 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. Direct also exceeds its daytime empirical limit on the 1st, 4th, 10th, 13th, 14th, and 20th. This occurs at the changeover from medium to high air mass and does not last for longer than 30 minutes. |
Measurements: | sgpsirsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/10/2005 | 1620 | 03/10/2005 | 1600 |
Subject: | SGP/SIRS/E2 - Reprocessed: Incorrect DIR calibration coefficients |
DataStreams: | sgpsirs20sE2.a0, sgpsirsE2.00, sgpsirsE2.b1 |
Description: | During the DIR/UIR instrument changeout on 2/10/2005 the new datalogger program contained incorrect calibration coefficients for the DIR instrument. The program was corrected on 3/10/2005. These data were reprocessed and archived in September 2006. |
Measurements: | sgpsirsE2.b1:
sgpsirsE2.00:
sgpsirs20sE2.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/09/2005 | 2300 | 04/17/2005 | 0332 |
Subject: | TWP/SMET/C2 - Upper wind direction sensor failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | After replacement on 03/03/2005 the upper wind direction sensor began reporting erroneous values again on 03/09/2005 becoming very apparent after 03/17/2005. Wind speed data appears reasonable but the wind direction data do not agree well with the lower wind sensor. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/09/1995 | 0000 | 12/04/2003 | 2359 |
Subject: | SGP/SIRS/E22 - SWFANAL Data description error |
DataStreams: | sgp15swfanalsirs1longE22.c1, sgp1swfanalsirs1longE22.c1 |
Description: | The long name attribute for the cloud effect fields incorrectly defines the cloud effect to be the difference between the clearskyfit and measured values: "Difference: ***fluxdn_clearskyfit - ***fluxdn_measured (***fcg)" ; The cloud effects are correctly calculated by subtracting the irradiance calculated in the clear sky fit from the measured irradiance. "Difference: ***fluxdn_measured - ***fluxdn_clearskyfit (***fcg)" ; NOTE: this is just a documentation error. The data are correctly calculated. |
Measurements: | sgp15swfanalsirs1longE22.c1:
sgp1swfanalsirs1longE22.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/25/1997 | 0000 | 12/10/2003 | 2359 |
Subject: | SGP/SIRS/C1 - SWFANAL Data description error |
DataStreams: | sgp15swfanalsirs1longC1.c1, sgp1swfanalsirs1longC1.c1 |
Description: | The long name attribute for the cloud effect fields incorrectly defines the cloud effect to be the difference between the clearskyfit and measured values: "Difference: ***fluxdn_clearskyfit - ***fluxdn_measured (***fcg)" ; The cloud effects are correctly calculated by subtracting the irradiance calculated in the clear sky fit from the measured irradiance. "Difference: ***fluxdn_measured - ***fluxdn_clearskyfit (***fcg)" ; NOTE: this is just a documentation error. The data are correctly calculated. |
Measurements: | sgp1swfanalsirs1longC1.c1:
sgp15swfanalsirs1longC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/16/2002 | 2000 | 06/28/2005 | 2300 |
Subject: | SGP/MWR/C1 - REPROCESS - Revised Retrieval Coefficients |
DataStreams: | sgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1, sgpqmemwrcolC1.c1 |
Description: | IN THE BEGINNING (June 1992), the retrieval coefficients used to derive the precipitable water vapor (PWV) and liquid water path (LWP) from the MWR brightness temperatures were based on the Liebe and Layton (1987) water vapor and oxygen absorption model and the Grant (1957) liquid water absorption model. Following the SHEBA experience, revised retrievals based on the more recent Rosenkranz (1998) water vapor and oxygen absorption models and the Liebe (1991) liquid waer absorption model were developed. The Rosenkranz water vapor absorption model resulted a 2 percent increase in PWV relative to the earlier Liebe and Layton model. The Liebe liquid water absorption model decreased the LWP by 10% relative to the Grant model. However, the increased oxygen absorption caused a 0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was particularly significant for low LWP conditions (i.e. thin clouds encountered at SHEBA). Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and Clough, TGARS v. 43, pp 1102-1108, 2005) that the half-width of the 22 GHz water vapor line from the HITRAN compilation, which is 5 percent smaller than the Liebe and Dillon (1969) half-width used in Rosenkranz (1998), provided a better fit to the microwave brightness temperature measurements at 5 frequencies in the range 22-30 GHz, and yielded more accurate retrievals. Accordingly, revised MWR retrieval coefficients have been developed using MONORTM, which utilizes the HITRAN compilation for its spectroscopic parameters. These new retrievals provide 3 percent less PWV and 2.6 percent greater LWP than the previous retrievals based on Rosenkranz (1998). Although the MWR data will be reprocessed to apply the new monortm-based retrievals, for most purposes it will be sufficient to correct the data using the following factors: PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ LWP_MONORTM = 1.026 * LWP_ROSENKRANZ The Rosenkranz-based retrieval coefficients became active as follows (BCR 456): SGP/C1 (Lamont) 4/16/2002, 2000 SGP/B1 (Hillsboro) 4/12/2002, 1600 SGP/B4 (Vici) 4/15/2002, 2300 SGP/B5 (Morris) 4/15/2002, 2300 SGP/B6 (Purcell) 4/16/2002, 2200 SGP/E14(Lamont) 4/16/2002, 0000 NSA/C1 (Barrow) 4/25/2002, 1900 NSA/C2 (Atqasuk) 4/18/2002, 1700 TWP/C1 (Manus) 5/04/2002, 0200 TWP/C2 (Nauru) 4/27/2002, 0600 TWP/C3 (Darwin) inception The MONORTM-based retrieval coefficients became active as follows (BCR 984): SGP/C1 (Lamont) 6/28/2005, 2300 SGP/B1 (Hillsboro) 6/24/2005, 2100 SGP/B4 (Vici) 6/24/2005, 2100 SGP/B5 (Morris) 6/24/2005, 2100 SGP/B6 (Purcell) 6/24/2005, 1942 SGP/E14(Lamont) 6/28/2005, 2300 NSA/C1 (Barrow) 6/29/2005, 0000 NSA/C2 (Atqasuk) 6/29/2005, 0000 TWP/C1 (Manus) 6/30/2005, 2100 TWP/C2 (Nauru) 6/30/2005, 2100 TWP/C3 (Darwin) 6/30/2005, 2100 PYE/M1 (Pt. Reyes) 4/08/2005, 1900** ** At Pt. Reyes, the original retrieval coefficients implemented in March 2005 were based on a version of the Rosenkranz model that had been modified to use the HITRAN half-width at 22 GHz and to be consistent with the water vapor continuum in MONORTM. These retrievals yield nearly identical results to the MONORTM retrievals. Therefore the Pt. Reyes data prior to 4/08/2005 may not require reprocessing. |
Measurements: | sgpmwrtipC1.a1:
sgp5mwravgC1.c1:
sgpmwrlosC1.b1:
sgp1mwravgC1.c1:
sgpqmemwrcolC1.c1:
sgpmwrlosC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/03/2006 | 0000 | 05/10/2006 | 1130 |
05/25/2006 | 2100 | 06/20/2006 | 1730 |
Subject: | SGP/EBBR/E27 - Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp15ebbrE27.b1, sgp30ebbrE27.b1, sgp5ebbrE27.b1 |
Description: | The left T/RH probe temperature sensor was spiking some of the time during these periods. Therefore, sensible and latent heat fluxes were incorrect during parts of the periods as well. |
Measurements: | sgp5ebbrE27.b1:
sgp30ebbrE27.b1:
sgp15ebbrE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/22/2006 | 1030 | 05/31/2006 | 0030 |
Subject: | SGP/EBBR/E8 - Sensible and Latent Heat Flux Suspect |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | The left humidity sensor produced large spikes frequently. This resulted in incorrect measurements of vapor pressure gradient and thus calculations of sensible and latent heat flux. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/07/2006 | 0000 | 05/18/2006 | 2359 |
Subject: | TWP/GNDRAD/C3 - IRT failed |
DataStreams: | twpgndrad60sC3.b1 |
Description: | The IRT began to fail on 4/7/2006 and failed completely (apparently due to the internal power supply) on 4/27. It was replaced on 5/18. |
Measurements: | twpgndrad60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/05/2006 | 2144 | 06/15/2006 | 0427 |
Subject: | TWP/SMET/C2 - Temp/RH probe failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | Temperature/RH probe failed and was replaced. |
Measurements: | twpsmet60sC2.b1:
|
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 |
---|---|---|---|
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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/12/2006 | 0000 | 08/15/2006 | 1800 |
Subject: | SGP/SWATS/E12 - T_rise higher than QC checks |
DataStreams: | sgpswatsE12.b1 |
Description: | T-rise way to high (~40 deg C). Water potential is calculated from a rise (and subsequent drop) in temperature in the sensor that is normally ~1-5 degrees C. When the T_rise is too high, the soil moisture data is dubious at best and unusable at worst. Since this "out-of-bounds" t_rise is so high, the soil moisture data are practically unusable. |
Measurements: | sgpswatsE12.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/31/2003 | 0000 | 07/12/2006 | 1608 |
Subject: | NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa |
DataStreams: | nsamettwr4hC1.b1 |
Description: | Barometric pressure data was converted from hPa to kPa in order to standardize the measurement units among ARM sites and to conform to accepted standard units determined by the scientific community. |
Measurements: | nsamettwr4hC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2003 | 0000 | 07/12/2006 | 1853 |
Subject: | NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa |
DataStreams: | nsamettwr2hC2.b1 |
Description: | Barometric pressure data was converted from hPa to kPa in order to standardize the measurement units among ARM sites and to conform to accepted standard units determined by the scientific community. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/1996 | 0000 | 10/17/2006 | 0000 |
Subject: | TWP/SMET/C1 - Reprocess: Tipping bucket rain gauge added |
DataStreams: | twpsmet60sC1.b1 |
Description: | A tipping bucket rain gauge was added to the TWP.C1 SMET suite of instruments on 20061017. Effective 20060926, two new variables (count and rain amount) were added to the end of the twpsmet60sC1.b1 datastream. Between 9/26 and 10/17, the data for these two variables are filled with zeros. Users should not use the data during this period as the zeros are not representative of the rain fall at the site. When reprocessing of this datastream occurs these variables will be added for the 19961009-20060926 and data from 19961009-20061017 will be filled with -9999 (missing). |
Measurements: | twpsmet60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/21/1998 | 0000 | 11/29/2006 | 2014 |
Subject: | TWP/SMET/C2 - Reprocess: Tipping bucket rain gauge added |
DataStreams: | twpsmet60sC2.b1 |
Description: | A tipping bucket rain gauge was added to the TWP.C2 SMET suite of instruments on 20061129. Effective 20060926, two new variables (count and rain amount) were added to the end of the twpsmet60sC2.b1 datastream. Between 9/26 and 11/29, the data for these two variables are filled with zeros. Users should not use the data during this period as the zeros are not representative of the rain fall at the site. When reprocessing of this datastream occurs these variables will be added for the 19981021-20060926 and data from 19981021-20061129 will be filled with -9999 (missing). |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/12/2002 | 0000 | 09/26/2006 | 1435 |
Subject: | TWP/SMET/C3 - Reprocess: Tipping bucket rain gauge added |
DataStreams: | twpsmet60sC3.b1 |
Description: | A tipping bucket rain gauge was added to the SMET suite of instruments effective 20060926. Two new variables (count and rain amount) were added at the end of the twpsmet60sC1.b1 datastream. When reprocessing of this datastream occurs these variables will be added with -9999 (missing) as the value for dates prior to gauge installation. |
Measurements: | twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/13/2006 | 0900 | 01/23/2007 | 1930 |
Subject: | SGP/SIRS/C1 - Upwelling SW cable problem |
DataStreams: | sgpsirs20sC1.a0, sgpsirsC1.00, sgpsirsC1.b1 |
Description: | Starting 11/13/2006, the C1 SIRS Upwelling Shortwave (up_short_hemisp) started to show large differences in comparison to co-located E13 SIRS and C1 IRT25m. After much troubleshooting and gnashing of teeth it was discovered that rodents had chewed through the instrument cables at the bottom of the tilt tower. Cables were replaced 01/23/2007 1930GMT. |
Measurements: | sgpsirsC1.b1:
sgpsirsC1.00:
sgpsirs20sC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/18/2007 | 2230 | 07/24/2007 | 1400 |
Subject: | SGP/SIRS/E18 - Noise in upwelling longwave data |
DataStreams: | sgpsirs20sE18.a0, sgpsirsE18.b1 |
Description: | After restart due to ice storm the upwelling longwave case and dome thermistors experienced intermittent noise. Last seen 7/24/2007, the noise is intermittent and can last several days. When noise is not apparent, upwelling longwave measurements appear normal. Only using upwelling longwave data that has been processed with ARMs qcrad VAP during this time period. Or, disregard upwelling longwave data during this time. |
Measurements: | sgpsirs20sE18.a0:
sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/03/2006 | 1509 | 03/06/2007 | 1610 |
Subject: | SGP/SIRS/C1 - Reprocess: Incorrect calibration coefficients |
DataStreams: | sgpsirs20sC1.a0, sgpsirsC1.00, sgpsirsC1.b1 |
Description: | Incorrection calibration coefficients were used in the C1/SIRS datalogger program. The PSP-US (upwelling shortwave global hemispheric), 30943F3 should be 126.93 not 129.93 [W/m2/mV]. |
Measurements: | sgpsirsC1.b1:
sgpsirsC1.00:
sgpsirs20sC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/06/2006 | 1722 | 04/12/2007 | 1810 |
Subject: | SGP/SIRS/E22 - Reprocess: Incorrect calibration coefficients |
DataStreams: | sgpsirs20sE22.a0, sgpsirsE22.00, sgpsirsE22.b1 |
Description: | NIP (short_direct_normal) 29541E6 had an incorrect calibration coefficient in the logger program. 128.97 should have been 126.67 [W/m2/mV]. |
Measurements: | sgpsirs20sE22.a0:
sgpsirsE22.b1:
sgpsirsE22.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/09/2007 | 2326 | 10/10/2007 | 0004 |
Subject: | NSA/METTWR/C1 - PWS Data Questionable |
DataStreams: | nsamettwr4hC1.b1 |
Description: | There was a degradation in the PWS lenses. New lenses were installed on 08/28/2007 but a proper calibration was not conducted until 10/10/2007. Data during the listed time period should be used with caution. |
Measurements: | nsamettwr4hC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/03/2007 | 2005 | 01/23/2007 | 1930 |
Subject: | SGP/SIRS/C1 - Upwelling LW cable problems |
DataStreams: | sgpsirs20sC1.a0, sgpsirsC1.00, sgpsirsC1.b1 |
Description: | Troubleshooting of the upwelling shortwave instrument on Jan 3rd 2007 caused problems with the co-located upwelling longwave hemispheric irradiance Eppley PIR instrument (aka UIR). Data dropouts persisted from this date to the final resolution of both shortwave and longwave instrument problems. Rodents had chewed through the instrument cables. The cables were replaced 01/23/2007 1930GMT. |
Measurements: | sgpsirsC1.b1:
sgpsirsC1.00:
sgpsirs20sC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/21/2007 | 0000 | 10/30/2007 | 1715 |
Subject: | SGP/SMOS/E7 - Wind sensor binding at low wind speeds |
DataStreams: | sgp1440smosE7.b1, sgp1smosE7.b1, sgp30smosE7.b1 |
Description: | The wind sensor bearings were failing causing the wind speed sensor to report lower than actual wind speeds when the winds were below 2 m/s. The wind monitor was replaced on 05/29/2007 but this failed to correct the problem. Subsequently, the site was flooded and it took some time to re-establish normal operations. The wind sensor was again replaced on 10/30/2007. After replacement the wind data from the SMOS compared more favorably to the co-located EBBR data. |
Measurements: | sgp1440smosE7.b1:
sgp30smosE7.b1:
sgp1smosE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/06/2006 | 1920 | 03/05/2008 | 0000 |
Subject: | SGP/RL/C1 - Invalid liquid water channel data |
DataStreams: | sgprlC1.a0 |
Description: | On 20060906, the liquid water channel (LWC) was disabled due to the removal of its photomultiplier tube (PMT). Consequently, the signals recorded for the LWC contain either zero or pure noise after that date. Also, starting on 20070522, the LWC was populated with data from the T2 channel as a result of a slight reconfiguration of the data acquisition system. On 4 March 2008 The LW channel photomultiplier tube was reinstalled in the Raman lidar. Effective 0000 UTC on 5 March 2008 the LW channel began producing valid liquid water data once again. |
Measurements: | sgprlC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/05/2007 | 1445 | 08/08/2007 | 2020 |
Subject: | SGP/SIRS/E5 - Intermittent missing upwelling longwave data |
DataStreams: | sgpsirs20sE5.a0, sgpsirsE5.b1 |
Description: | On 7/05 The upwelling longwave hemispheric PIR started recording intermittent missing data. The cable was replaced on 8/8 solving the problem |
Measurements: | sgpsirsE5.b1:
sgpsirs20sE5.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/23/2007 | 1600 | 09/05/2007 | 1500 |
Subject: | SGP/SWATS/E4 - Failure of T_rise channel |
DataStreams: | sgpswatsE4.b1 |
Description: | Negligible T_rise. Soil temperature is OK, but due to lack of T-rise, there are no soil moisture measurements. |
Measurements: | sgpswatsE4.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/29/2006 | 0000 | 10/24/2007 | 2152 |
Subject: | TWP/AERI/C2 - Reprocess: Incorrect lat/lon/alt |
DataStreams: | twpaerich1C2.b1, twpaerich2C2.b1, twpaeriengineerC2.b1, twpaerilblcloudsC2.c1, twpaerirawC2.00, twpaerisummaryC2.b1 |
Description: | AERI reporting wrong lat/lon in data. The values reported are representative of Darwin, not Nauru. A low level reprocessing task has been submitted. |
Measurements: | twpaeriengineerC2.b1:
twpaerirawC2.00:
twpaerisummaryC2.b1:
twpaerich1C2.b1:
twpaerich2C2.b1:
twpaerilblcloudsC2.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/03/2007 | 0359 | 10/25/2007 | 2148 |
Subject: | NSA/SKYRAD/C1 - Reprocessed: Incorrect calibration coefficient |
DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
Description: | Installed Skyrad PSP (downwelling shortwave hemispheric irradiance) had calibration coefficient Rs applied when it should have used Rsc. ARM is using IR corrected Rsc and CFc coefficients for PSPs deployed at all facilities. PSP #32026 should use RSc@45=8.7578 ?V/W/m? and not Rs@45=8.6335. Reprocessed to correct downwelling shortwave hemispheric irradiance (DS) by: DS(new) = (DS(old) / 115.83 ) * 114.18 Reprocessing completed March 2008. |
Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/15/2007 | 0000 | 10/24/2007 | 1900 |
Subject: | SGP/EBBR/E20 - Reprocess: Wind Direction 65 Degrees Low |
DataStreams: | sgp15ebbrE20.b1, sgp30ebbrE20.b1, sgp5ebbrE20.b1 |
Description: | The wind direction sensor reported wind directions that were 65 degrees too low because of a mis-alignment. This bias should have no effect on the res_ws or sigma_wd measurements. The wind direction data could be re-processed by adding 65 degrees. |
Measurements: | sgp30ebbrE20.b1:
sgp15ebbrE20.b1:
sgp5ebbrE20.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/14/2007 | 0336 | 08/14/2007 | 2005 |
Subject: | SGP/SIRS/E11 - Failed ventilator fans |
DataStreams: | sgpsirs20sE11.a0, sgpsirsE11.b1 |
Description: | Ventilator fans for both the downwelling shortwave hemispheric and downwelling diffuse hemispheric instruments failed during this time period. The thermal effects of daytime heating will skew the radiometric measurements of these thermopile instruments. |
Measurements: | sgpsirsE11.b1:
sgpsirs20sE11.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/12/2007 | 1030 | 01/02/2008 | 2240 |
Subject: | SGP/SIRS/E18 - Instrument noise problem |
DataStreams: | sgpsirs20sE18.a0, sgpsirsE18.b1 |
Description: | Starting May 12th 2007 DIR experiencing persistent, intermittent data dropouts and noise. PM found a damaged PIR cable and repaired 01/02/08 2240GMT. Noise seems to be unbiased and dropouts are beyond QC limits making QC flags a possible option in filtering for good data. However, using data during this period is not recommended. |
Measurements: | sgpsirsE18.b1:
sgpsirs20sE18.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/07/2007 | 1830 | 03/19/2008 | 1900 |
Subject: | TWP/AERI/C3 - Reprocess: Incorrect lat/lon/alt |
DataStreams: | twpaerich1C3.b1, twpaerich2C3.b1, twpaeriengineerC3.b1, twpaerisummaryC3.b1 |
Description: | Periodic GPS malfunctions caused faulty Latitude and Longitude values in the data. Correct values are: LAT = -12.424597 LON = 130.891552 |
Measurements: | twpaerich2C3.b1:
twpaerich1C3.b1:
twpaeriengineerC3.b1:
twpaerisummaryC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/10/2004 | 1558 | 04/14/2008 | 2143 |
Subject: | SGP/AERI/E14 - Reprocess: Incorrect altitude reported |
DataStreams: | sgpaerich1E14.b1, sgpaerich2E14.b1, sgpaeriengineerE14.b1, sgpaerisummaryE14.b1 |
Description: | |
Measurements: | sgpaerich1E14.b1:
sgpaeriengineerE14.b1:
sgpaerisummaryE14.b1:
sgpaerich2E14.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/01/2007 | 0000 | 07/01/2008 | 1500 |
Subject: | SGP/SIRS/E21 - Ventilator Fan Failure |
DataStreams: | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
Description: | Start time is uncertain due to length of time this problem existed. During the time frame specified the PSP (down_short_hemisp) and 8-48 (down_short_diffuse_hemisp) ventilator fans failed. PM replaced the fans 7/1/2008 1500. Ventilator failure does adversely affect thermopile radiometer measurements but the extent has not been quantified. The 8-48 is significantly less affected than the PSP. Mentor suggests using component sum method detailed in SIRS instrument handbook where down_short_hemisp = down_short_diffuse + short_direct_normal * cos (zenith angle) for each time record. |
Measurements: | sgpsirsE21.00:
sgpsirs20sE21.a0:
sgpsirsE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/27/2006 | 2000 | 06/30/2008 | 1740 |
Subject: | NSA/SKYRAD/C1 - Tracker inoperative |
DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
Description: | Tracker stopped working at this site during the time range specified. Reason for failure is unknown. Tracker power cycled and restarted by maintenance 06/30 2008 1740 GMT. The short_direct_normal (NIP) and down_short_diffuse_hemisp (8-48) data are bad during this time. Data are not recoverable. |
Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/01/2007 | 0000 | 07/08/2008 | 2359 |
Subject: | SGP/MFRSR/En - Incorrect alltime units |
DataStreams: | sgpmfrsrE10.b1, sgpmfrsrE11.b1, sgpmfrsrE12.b1, sgpmfrsrE15.b1, sgpmfrsrE16.b1, sgpmfrsrE18.b1, sgpmfrsrE19.b1, sgpmfrsrE2.b1, sgpmfrsrE22.b1, sgpmfrsrE24.b1, sgpmfrsrE27.b1, sgpmfrsrE3.b1, sgpmfrsrE4.b1, sgpmfrsrE5.b1, sgpmfrsrE6.b1, sgpmfrsrE7.b1, sgpmfrsrE8.b1, sgpmfrsrE9.b1 |
Description: | Units of alltime_hemisp_broadband and alltime_hemisp_narrowband_filter(N) are incorrect. They should be counts. A low priority reprocessing task has been submitted to correct this metadata error. |
Measurements: | sgpmfrsrE9.b1:
sgpmfrsrE15.b1:
sgpmfrsrE11.b1:
sgpmfrsrE16.b1:
sgpmfrsrE8.b1:
sgpmfrsrE2.b1:
sgpmfrsrE24.b1:
sgpmfrsrE6.b1:
sgpmfrsrE19.b1:
sgpmfrsrE27.b1:
sgpmfrsrE22.b1:
sgpmfrsrE12.b1:
sgpmfrsrE3.b1:
sgpmfrsrE5.b1:
sgpmfrsrE7.b1:
sgpmfrsrE4.b1:
sgpmfrsrE10.b1:
sgpmfrsrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/1993 | 0005 | 10/12/1995 | 2359 |
Subject: | SGP/MWR/C1 - Valid LWP > 1mm excluded from 5 min avgs |
DataStreams: | sgp5mwravgC1.c1 |
Description: | The limit of maximum valid liquid water path was set at 1 mm. Although this limit was selected 'conservatively' so as to definitely flag precipitation-contaminated data in the 20-second (sgpmwrlos) files, the effect has been to exclude valid liquid water paths greater than 1 mm from the 5-minute averages (sgp5mwravg). The maximum limits for precipitable water vapor (PWV) and liquid water path (LWP) have been removed, and the averaging algorithm instead excludes data on the basis of the brightness temperature flags. These flags are set below a minimum of 2.75 K (cosmic background) and above a maximum of 100 K (precipitation). |
Measurements: | sgp5mwravgC1.c1:
|