DQR ID | Subject | Data Streams Affected |
---|---|---|
D000225.7 | SGP/EBBR - EBBR E13 Left Aspirator Not Working | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D000301.3 | SGP/EBBR - EBBR E13 Net Radiation Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D000531.4 | SGP/EBBR/E13 - failure of sensors | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
D000531.5 | SGP/EBBR/E13 - Failed Right Humidity Probe | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
D000628.1 | SGP/EBBR/E13- Left humidity probe replaced | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
D010403.10 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.16 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.17 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.18 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.19 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.2 | SGP/EBBR/E13 - E13 EBBR Heat Capacities Incorrect | sgp30ebbrE13.b1 |
D010403.20 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.22 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.24 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.3 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.35 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.36 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.37 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.38 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.39 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.4 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.40 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.41 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.42 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.43 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.44 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.45 | SGP/EBBR/E13 - E13 EBBR All Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010403.6 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.8 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010403.9 | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010412.1 | SGP/EBBR/E13 - E13 EBBR Soil Temperature #4 Suspect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010413.1 | SGP/EBBR/E13 - E13 EBBR Wind Direction Iced | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D010413.2 | SGP/EBBR/E13 - E13 EBBR Soil Heat Flow #4 Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D010605.5 | SGP EBBR E13 - E13 EBBR Soil T #4 Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D011127.27 | SGP EBBR E13 - E13 EBBR Data Incorrect During 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.10 | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil heat Flows #1 and #2 Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D020129.11 | SGP EBBR E13 - E13 EBBR Data Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.12 | SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D020129.13 | SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D020129.2 | SGP EBBR E13 - E13 EBBR AEM in Mid Position | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.3 | SGP EBBR E13 - E13 EBBR AEM Home 30 Offset | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.4 | SGP EBBR E13 - E13 EBBR AEM Home 30 Offset or AEM in Mid Position | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.5 | SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.7 | SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020129.8 | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D020129.9 | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D020131.13 | SGP/EBBR/E13 - Left T/RH Probe Temperature Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020214.1 | SGP/EBBR/E13 - Left Humidity Probe Temperature Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020214.2 | SGP/EBBR/E13 - Data incorrect during maintenance | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020214.5 | SGP/EBBR/E13 - Data Incorrect During 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020628.16 | SGP/EBBR/E13 - T/RH Check | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020628.2 | SGP/EBBR/E13 - 3-month Check | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020716.12 | SGP/EBBR/E13 - 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020717.13 | SGP/EBBR/E13 - Reprocess: Soil Heat Flow #1 Incorrect | sgp30ebbrE13.b1 |
D020717.14 | SGP/EBBR/E13 - Reprocess: Soil Heat Flow #2 Incorrect | sgp30ebbrE13.b1 |
D020717.15 | SGP/EBBR/E13 - Wrong CR10 Program Installed | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
D020717.16 | SGP/EBBR/E13 - Wind Direction Incorrect | sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020717.17 | SGP/EBBR/E13 - AEM Hung up | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020723.1 | SGP/EBBR/E13 - Thermocouple out of range, data incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D020726.2 | SGP/EBBR/E13 - Reprocess: Soil Heat Flow #1 and #2 Incorrect | sgp30ebbrE13.b1 |
D021113.1 | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE18.b1, sgp30ebbrE19.b1, sgp30ebbrE2.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
D021113.4 | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
D030110.34 | SGP/EBBR/E13 - Data Incorrect during 6 month checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D030115.4 | SGP/EBBR/E13 - Wind Speed Stalling at Low Speeds | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D030115.5 | SGP/EBBR/E13 - REPROCESS: Soil Moisture #1 Offset1 | sgp30ebbrE13.b1 |
D030115.6 | SGP/EBBR/E13 - AEM Jung between Home Positions | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D030712.17 | SGP/EBBR/E13 - 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D030919.8 | SGP/EBBR/E13 - Water In Net Radiometer; Surface Fluxes are Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D031031.5 | SGP/EBBR/E13 - Water in Net Radiometer, Surface Fluxes Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D031204.10 | SGP/EBBR/E13 - 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D031222.16 | SGP/EBBR/E13 - Wind Speed Sensor Frozen By Ice Storm | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D031222.17 | SGP/EBBR/E13 - Net Radiometer Iced Over During Storm | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D040304.12 | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D040304.13 | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice | sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D040608.6 | SGP/EBBR/E13 - Automatic Exchange Mechanism Failure | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D040915.2 | SGP/EBBR/E13 - Net Radiation Incorrect, Fluxes Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D040915.6 | SGP/EBBR/E13 - AEM Failure, Fluxes Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D041222.12 | SGP/EBBR/E13 - 6 Month Checks | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050206.10 | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050207.6 | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice Storm | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050510.3 | SGP/EBBR/E13 - Net Radiometer Tilted Half Degree West | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050622.1 | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure) | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D050624.7 | SGP/EBBR/E13 - Improved EBBR CR10 Program | sgp30ebbrE13.b1 |
D051104.2 | SGP/EBBR/E13 - Fluxes Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D051104.3 | SGP/EBBR/E13 - Loose connections | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D051106.24 | SGP/EBBR/E13 - Average Soil Heat Flux Incorrect | sgp30ebbrE13.b1 |
D051111.11 | SGP/EBBR/E13 - metadata corrections | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060111.9 | SGP/EBBR/E13 - Wind Speed Sensor Frozen | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060501.12 | SGP/EBBR/E13 - Missing Data | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060501.13 | SGP/EBBR/E13 - Flux and Gradient Measurements Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060501.14 | SGP/EBBR/E13 - Net Radiation and Fluxes Suspect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060622.1 | SGP/EBBR/E13 - Left Air Temperature Incorrect - Fluxes Affected | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060622.2 | SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060818.10 | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect When Pressure Offscale | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060921.5 | SGP/EBBR/E13 - Soil Heat Flow #3 Large Negative | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
D060921.6 | SGP/EBBR/E13 - Pressure and Sensible and Latent Heat Fluxes Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D060921.7 | SGP/EBBR/E13 - Most Measurements Incorrect When Battery Voltage Too low | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D061114.6 | SGP/EBBR/E13 - Battery failure | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D070917.1 | SGP/EBBR/E13 - Radiometer dome broken | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D080318.1 | SGP/EBBR/E13 - Wind direction failure | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D090313.13 | SGP/EBBR/E13 - Wind Speed Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/13/2000 | 2115 | 01/13/2000 | 2130 |
Subject: | SGP/EBBR - EBBR E13 Left Aspirator Not Working |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | A loss of the 12V DC power to the left aspirator caused it to stop operating. The affected measurements are: 5 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot 15 minute: rr_thum_r, rr_thum_l, mv_hum_r, mv_hum_l, tair_r, tair_l 30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, bowen, h, e |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/20/1999 | 1930 | 09/23/1999 | 1930 |
Subject: | SGP/EBBR - EBBR E13 Net Radiation Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The net radiometer top dome was broken and water had entered. Net radiation values are therefore incorrect during the period. The affected data are: 5 minute: q 15 minute: mv_q 30 minute: q, h, e |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/17/1995 | 2200 | 07/24/1995 | 2300 |
Subject: | SGP/EBBR/E13 - failure of sensors |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
Description: | A lightning strike to the central cluster area shortly after 0800 GMT on July 17 caused failure of several EBBR sensors: both humidity probes, the barometer, soil heat flux #3, soil moisture # 1 and the wind direction. These failed sensors caused sensible, latent, and average soil heat flux to be incorrect until site operations performed maintenance on July 24th. Site Operations found a loose connection from soil moisture probe #1, removed barometer SN 6578 and replaced it with SN 6507, removed soil heat flux sensor #3 with SN 923022 and replaced it with SN 933199, repositioned the wind direction sensor - which was rotated approximately ninety degrees clockwise from its proper position, and removed the right humidity probe SN 460412 and replaced it with SN 460428. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp5ebbrE13.00:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/17/1995 | 2200 | 09/22/1995 | 2108 |
Subject: | SGP/EBBR/E13 - Failed Right Humidity Probe |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
Description: | A lightning strike to the central cluster area on 17 July 1995 caused failure of several EBBR sensors including the right humidity probe. On July 24th, site operations removed the right humidity probe SN 460412 and replaced it with SN 460428 In less than a day the right humidity probe output soared to over 113% and has hovered around 112% since. I consider all right probe values to be incorrect due to this behavior. Without a properly functioning right humidity probe, all values of top and bottom relative humidity, top and bottom vapor pressure, Bowen ratio, and latent and sensible heat fluxes are incorrect. A working spare relative humidity probe was not available at that time. The probe was replaced with a working, calibrated probe on 22 September 1995 at about 2108 GMT. I have the examined the data since the day of the replacement and find that the new probe is working well. All E13 EBBR measurements are presently correct. The old probe S/N was 460428, the new S/N is 460413. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp5ebbrE13.00:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/17/1995 | 2200 | 07/25/1995 | 1930 |
Subject: | SGP/EBBR/E13- Left humidity probe replaced |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
Description: | A lightning strike to the central cluster area on 17 July 1995 caused the left humidity probe to fail. Some of the period of incorrect data has been discussed in D0000531.4. The left humidity probe was replaced on 25 July 1995 at 1925 GMT (old SN 460413, new SN 460435). |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp5ebbrE13.00:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/2001 | 1730 | 01/04/2001 | 1731 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/16/2000 | 2130 | 03/19/2000 | 1701 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Low battery voltage caused all data to be incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2000 | 0130 | 11/06/2000 | 0431 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Low battery voltage caused all data to be incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2000 | 0120 | 11/06/2000 | 2255 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | All data was incorrect for an unknown reason. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/12/2000 | 0945 | 11/12/2000 | 1116 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/24/2000 | 2230 | 02/24/2000 | 2231 |
Subject: | SGP/EBBR/E13 - E13 EBBR Heat Capacities Incorrect |
DataStreams: | sgp30ebbrE13.b1 |
Description: | The soil heat capacities were incorrect, a result of the missing data from the previous half hour. |
Measurements: | sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/13/2000 | 0015 | 11/14/2000 | 0031 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/28/2000 | 1230 | 02/28/2000 | 1231 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/29/2000 | 1300 | 02/29/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data were incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2000 | 0000 | 02/23/2000 | 1431 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/12/2000 | 1300 | 03/12/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/11/2000 | 1300 | 03/11/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/08/2000 | 1300 | 03/08/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/05/2000 | 1300 | 03/05/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2000 | 1300 | 03/01/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/03/2000 | 0000 | 03/04/2000 | 1501 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/13/2000 | 1300 | 03/13/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/15/2000 | 1300 | 03/15/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/22/2000 | 1300 | 03/22/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/23/2000 | 1300 | 03/23/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/26/2000 | 1300 | 03/26/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/27/2000 | 1300 | 03/27/2000 | 1301 |
Subject: | SGP/EBBR/E13 - E13 EBBR All Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Battery voltage was too low. All data was incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/17/2000 | 1730 | 03/23/2000 | 1901 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/14/2000 | 0200 | 12/14/2000 | 2301 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/31/2000 | 2300 | 12/31/2000 | 2331 |
Subject: | SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions. Incorrect Bowen ratio, and latent and sensible heat fluxes resulted. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2000 | 0000 | 12/31/2000 | 0000 |
Subject: | SGP/EBBR/E13 - E13 EBBR Soil Temperature #4 Suspect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Soil Temperature #4 produced noisy measurements, resulting in quantities calculated from it to be of suspect quality. This condition normally occurred early in the GMT day. Sensible (h) and latent (e) heat fluxes were not normally greatly affected. Average surface heat flow was normally slightly underestimated. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/11/2000 | 0000 | 12/14/2000 | 1931 |
Subject: | SGP/EBBR/E13 - E13 EBBR Wind Direction Iced |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The wind direction sensor was iced stopped for the indicated period. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/13/2000 | 1930 | 01/12/2001 | 2001 |
Subject: | SGP/EBBR/E13 - E13 EBBR Soil Heat Flow #4 Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Soil Heat Flow #4 was large positive or negative, but always incorrect during the indicated period. This resulted in overestimates or underestimates of laetnt and sensible heat fluxes and average soil heat flow. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/29/1999 | 0000 | 03/08/2001 | 1931 |
Subject: | SGP EBBR E13 - E13 EBBR Soil T #4 Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Soil Temperature #4 floated around, causing average soil heat flow to sometimes be too small (resulting too small a sensible heat flux and too large a latent heat flux) or too large (resulting in too large a sensible heat flux and too small a latent heat flux). Investigation of g4 will indicate when these conditions occurred and the likely effect on sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/20/2001 | 1720 | 04/20/2001 | 1749 |
10/04/2001 | 1835 | 10/04/2001 | 1934 |
Subject: | SGP EBBR E13 - E13 EBBR Data Incorrect During 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The data was incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2001 | 1700 | 01/18/2002 | 0001 |
Subject: | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil heat Flows #1 and #2 Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Soil Heat Flow probes #1 and #2 were incorrect during the indicated period (and for some time afterward, to be covered in another DQR). Outputs from the probes were typically too large negative or too large positive. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2001 | 1715 | 10/05/2001 | 1731 |
Subject: | SGP EBBR E13 - E13 EBBR Data Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The 5 and 15 minute data was zero and thus the thirty minute data was also incorrect. This occurs after the restart of an EBBR system, in this case after a recalibration unit changeout. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/08/2001 | 2000 | 10/12/2001 | 1731 |
Subject: | SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The left T/RH Probe Temperature was often incorrect, causing the other indicated measurements to be incorrect also. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/12/2001 | 1735 | 10/18/2001 | 1601 |
11/22/2001 | 0130 | 11/25/2001 | 1531 |
01/05/2002 | 1930 | 01/05/2002 | 1931 |
01/06/2002 | 1930 | 01/06/2002 | 2101 |
01/07/2002 | 2330 | 01/07/2002 | 2331 |
01/08/2002 | 1730 | 01/08/2002 | 1801 |
01/09/2002 | 0330 | 01/18/2002 | 0001 |
Subject: | SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | The left T/RH Probe Temperature was often incorrect, causing the other indicated measurements to be incorrect also. When the home30 signal had an offset, the top RH probe temperature was incorrect but not the bottom RH probe temperature. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/2001 | 0245 | 10/09/2001 | 2145 |
11/25/2001 | 1545 | 12/28/2001 | 1931 |
Subject: | SGP EBBR E13 - E13 EBBR AEM in Mid Position |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM stopped before reaching the end of it's travel, causing the home signals to be between 0 and 3 during much of this period (therefore the data is colored yellow). All gradient data, sensible heat flux, latent heat flux, and the Bowen ratio are incorrect during this condition. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/12/2001 | 1315 | 11/25/2001 | 1541 |
12/28/2001 | 1930 | 01/18/2002 | 0001 |
Subject: | SGP EBBR E13 - E13 EBBR AEM Home 30 Offset |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM home30 signal is offset by approximately 25; it appears that the electronics of the AEM is adding the home15 and home30 voltages together when the AEM is in the home30 position. All gradient data, sensible heat flux, latent heat flux, and the Bowen ratio are incorrect during this condition. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/2001 | 2245 | 10/12/2001 | 1301 |
Subject: | SGP EBBR E13 - E13 EBBR AEM Home 30 Offset or AEM in Mid Position |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM stopped before reaching the end of it's travel, causing the home signals to be between 0 and 3 during part of this period. The AEM home30 signal is offset by approximately 25 during part of this period; it appears that the electronics of the AEM is adding the home15 and home30 voltages together when the AEM is in the home30 position. All gradient data, sensible heat flux, latent heat flux, and the Bowen ratio are incorrect during these conditions. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 10/05/2001 | 1401 |
Subject: | SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | This condition occurred most of the time during the indicated period (hence color yellow). The left air temperature was incorrect only when the AEM was in the home 30 position. This only affected the bottom air temperature calculation. However, it made the latent heat flux, sensible heat flux, and Bowen ratio incorrect. The sensor was improperly inserted into the aspirator shield and was pinched between the shield and the T/RH probe. When the AEM was in the home30 position, the aspirator hose position may have caused the sensor to short to ground. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/25/2001 | 0530 | 03/01/2001 | 2356 |
Subject: | SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | This condition occurred most of the time during the indicated period (hence color yellow). The left air temperature was incorrect only when the AEM was in the home 30 position. This only affected the bottom air temperature calculation. However, it made the latent heat flux, sensible heat flux, and Bowen ratio incorrect. The sensor was improperly inserted into the aspirator shield and was pinched between the shield and the T/RH probe. When the AEM was in the home30 position, the aspirator hose position may have caused the sensor to short to ground. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/08/2001 | 1935 | 03/31/2001 | 2356 |
Subject: | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Soil Temperature #4 was often incorrect, typically too large negative, during this period, causing other measurements calculated with it to be incorrect also. This was caused by a bad multiplexor channel, which was discovered by the vendor during recalibration of the unit later. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 10/05/2001 | 1401 |
Subject: | SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | Soil Temperature #4 was often incorrect, typically too large negative, during this period, causing other measurements calculated with it to be incorrect also. This was caused by a bad multiplexor channel, which was discovered by the vendor during recalibration of the unit later. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/25/2001 | 1545 | 12/28/2001 | 1931 |
Subject: | SGP/EBBR/E13 - Left T/RH Probe Temperature Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | During much of the indicated period the Left T/RH Temperature was incorrect. Because the home signal was between 0 and 3, the temperature was incorrect when the AEM was at the bottom position, but was correct when the AEM was at the top position. This was caused by a short created when the sensor was mispositioned in the aspirator housing and enough strain on the cable for it to bring it into contact with the housing in the bottom position. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/18/2002 | 0005 | 01/25/2002 | 2201 |
Subject: | SGP/EBBR/E13 - Left Humidity Probe Temperature Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The left humidity probe temperature was incorrect much of the time, as was the top humidity temperature and vapor pressure. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/25/2002 | 2200 | 01/25/2002 | 2201 |
Subject: | SGP/EBBR/E13 - Data incorrect during maintenance |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The 5, 15, and 30 minute measurements were zero or offscale at 2200 GMT only. Electronic connections were being checked at that time. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/25/2002 | 2010 | 01/25/2002 | 2101 |
Subject: | SGP/EBBR/E13 - Data Incorrect During 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The measurements were incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/04/1994 | 2005 | 11/04/1994 | 2100 |
Subject: | SGP/EBBR/E13 - T/RH Check |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | During the month of November 1994, site operations personnel conducted field comparisons of the temperature and relative humidity sensors in the EBBRs and the HMI31 portable T/RH meter (with the removable probe). As is reflected in the home signal output, the automatic exchange mechanism was disabled in order to conduct the checks. Measurements were taken every 5 minutes, for a half hour each in the aspirated radiation shields (the HMI31 was inserted into the EBBR aspirated radiation shield to provide the same aspiration as the EBBR sensors received). Measurements of aspirator flow were also recorded. This information was provided to the mentor. The mentor then compared the field checks with the data recorded by the EBBRs. The periods of data and data fields that are incorrect because of the checks are listed below. Times are those at which the data are reported. Data Fields 5 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot 15 minute: rr_thum_r, rr_thum_l, mv_hum_r, mv_hum_l, tair_r, tair_l 30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, bowen, e, h 5 minute: 2005, 2010, 2015, 2020, 2025, 2030, 2035, 2040, 2045, 2050, 2055, 2100, 2105 15 minute: 2015, 2045, 2100, 2115 30 minute: 2030, 2100 (EDITOR'S NOTE: The following analysis refers to all EBBRs installed in Nov 1994) Results of the T/RH comparisons: The combined accuracy of the HMI31 and EBBR temperature sensors (thermocouples or PRTDs) is +/- 0.4 degrees C. The combined accuracy of the HMI31 and EBBR RH sensors is +/- 4% for RH less than 80%, and +/- 6% for RH greater than 80%. The combined accuracy for each pair of EBBR sensors of the same type is essentially the same as the quantities stated above. All of the pairs of EBBR sensors show differences that fall within the stated combined accuracies. Although this sounds wonderful, a few of the differences are close to the combined accuracy, which, because of the small differences in temperature being measured (normally smaller than the magnitude of the combined accuracy) could lead to some incorrect estimation of sensible and latent heat flux. However, unless there would be substantial differences of calibration slope of two sensors in a pair, the switching of height of the sensors every 15 minutes by the automatic exchange mechanism will remove the offset between the sensors. The comparisons between the EBBR sensors and the HMI31 T/RH meter showed much larger differences. The range of differences were: -2.4 to 0.0 degrees for the thermocouples, -2.1 to 0.1 degrees for the RH probe PRTDs, and -6.6 to 6.7 percent for the RH sensors. Six Thermocouples indicated differences from the HMI31 greater than the combined accuracy. Seven PRTDs indicated differences from the HMI31 greater than the combined accuracy. Four RH sensors indicated differences from the HMI31 greater than the combined accuracy. The temperature differences (for both thermocouples and PRTDs) were nearly all of one sign; the HMI31 indicated the greater temperature, which may suggest a bias in the HMI31 temperature measurement, even though a dozen differences of +/- 0.2 degrees were measured. Four differences of zero and only one positive difference (out of 40) were measured. Thirteen of the 20 RH differences were positive (HMI31 indicating the lower RH), with the differences near the level of the combined accuracies being approximately 50% positive and 50% negative. It does not appear that the HMI31 has a RH bias. Plots of EBBR sensor/HMI31 differences as a function of time from the installation of the individual sensors (a range of 10 to 30 months in the field) shows no obvious pattern of sensor drift with time. This is encouraging. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/06/1995 | 0000 | 10/06/1995 | 2359 |
Subject: | SGP/EBBR/E13 - 3-month Check |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | During EBBR 3 month checks the Automatic Exchange Mechanism is disabled (reflected by home signals near zero) so that the two aspirator units can be placed at the same height. The measurements during this period, at least, do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), or latent heat flux (e), nor do the air temperature and relative humidity measurements indicate gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Time of the check is not known, so the entire day has been flagged as suspect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/16/2002 | 1855 | 05/16/2002 | 1926 |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The indicated measurements were incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/25/2002 | 2202 | 03/03/2002 | 1129 |
Subject: | SGP/EBBR/E13 - Reprocess: Soil Heat Flow #1 Incorrect |
DataStreams: | sgp30ebbrE13.b1 |
Description: | Soil Heat Flow #1 was incorrect during the indicated period. Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can be recalculated using the remaining good sets of soil sensors as follows: ave_shf = (g2 + g3 + g4 + g5)/4 e = -(q + ave_shf)/(1 + bowen) h = -(q + e + ave_shf) |
Measurements: | sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/07/2002 | 2032 | 05/20/2002 | 2101 |
Subject: | SGP/EBBR/E13 - Reprocess: Soil Heat Flow #2 Incorrect |
DataStreams: | sgp30ebbrE13.b1 |
Description: | Soil Heat Flow #2 was incorrect during the indicated period. Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can be recalculated using the remaining good sets of soil sensors as follows: ave_shf = (g1 + g3 + g4 + g5)/4 e = -(q + ave_shf)/(1 + bowen) h = -(q + e + ave_shf) |
Measurements: | sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2001 | 1715 | 02/22/2002 | 2131 |
Subject: | SGP/EBBR/E13 - Wrong CR10 Program Installed |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.00, sgp5ebbrE13.b1 |
Description: | An old version 4 program was installed on 5 Oct 01 instead of the correct version 8 program. All of the indicated measurements are suspect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp5ebbrE13.00:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/24/2002 | 0600 | 06/14/2002 | 1431 |
Subject: | SGP/EBBR/E13 - Wind Direction Incorrect |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The wind direction and sigma_wd was near zero for the indicated times. |
Measurements: | sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/18/2002 | 0015 | 03/03/2002 | 0801 |
03/03/2002 | 0815 | 03/08/2002 | 1401 |
03/08/2002 | 1415 | 03/09/2002 | 0931 |
03/09/2002 | 0945 | 03/09/2002 | 2001 |
03/12/2002 | 0000 | 03/12/2002 | 0101 |
03/12/2002 | 0115 | 04/12/2002 | 1901 |
04/16/2002 | 1430 | 04/16/2002 | 2001 |
04/16/2002 | 2230 | 04/17/2002 | 0031 |
04/17/2002 | 1530 | 04/17/2002 | 1701 |
04/17/2002 | 2230 | 04/17/2002 | 2231 |
04/18/2002 | 1230 | 04/18/2002 | 1231 |
05/06/2002 | 0600 | 05/06/2002 | 1931 |
05/07/2002 | 0000 | 05/07/2002 | 0001 |
05/07/2002 | 0300 | 05/07/2002 | 0301 |
05/07/2002 | 0400 | 05/07/2002 | 0401 |
05/07/2002 | 1700 | 05/07/2002 | 1731 |
05/08/2002 | 2300 | 05/09/2002 | 0101 |
05/11/2002 | 1530 | 05/11/2002 | 1601 |
05/11/2002 | 1900 | 05/11/2002 | 1901 |
Subject: | SGP/EBBR/E13 - AEM Hung up |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The automatic exchange mechanism hung numerous times, but with various different measurements of home signals. In all cases, temperature and humidity gradients were incorrect; thus the Bowen ratio, sensible heat flux, and latent heat flux are incorrect for the indicated periods. Even when the home 15 and 30 signals were different (but too high) the measurements were incorrect because the program keys off of the home signals, which must be in the proper ranges. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/22/1995 | 2030 | 12/22/1995 | 2130 |
Subject: | SGP/EBBR/E13 - Thermocouple out of range, data incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The left thermocouple temperature for 22 December was out of range between 2030 and 2130 GMT, yielding incorrect values as listed below: 5 minute: tair_top, tair_bot 15 minute: tair_l 30 minute: tair_top, tair_bot, bowen, h, e |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/18/2002 | 0015 | 01/25/2002 | 2201 |
03/03/2002 | 1130 | 03/07/2002 | 2031 |
Subject: | SGP/EBBR/E13 - Reprocess: Soil Heat Flow #1 and #2 Incorrect |
DataStreams: | sgp30ebbrE13.b1 |
Description: | Soil Heat Flow #1 and #2 were incorrect during the indicated period. Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can be recalculated using the remaining good sets of soil sensors as follows: ave_shf = (g3 + g4 + g5)/3 e = -(q + ave_shf)/(1 + bowen) h = -(q + e + ave_shf) |
Measurements: | sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 06/18/2003 | 2359 |
Subject: | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR |
DataStreams: | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE18.b1, sgp30ebbrE19.b1, sgp30ebbrE2.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
Description: | The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the EBBR 30 minute netcdf header have been incorrect from the beginning of processing the data into netcdf files. The correct units are MJ/m^3/C. This does not affect the data quality. |
Measurements: | sgp30ebbrE8.b1:
sgp30ebbrE4.b1:
sgp30ebbrE9.b1:
sgp30ebbrE18.b1:
sgp30ebbrE26.b1:
sgp30ebbrE13.b1:
sgp30ebbrE7.b1:
sgp30ebbrE12.b1:
sgp30ebbrE19.b1:
sgp30ebbrE20.b1:
sgp30ebbrE22.b1:
sgp30ebbrE2.b1:
sgp30ebbrE15.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/01/1993 | 1200 | 06/18/2003 | 1159 |
Subject: | SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR |
DataStreams: | sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1 |
Description: | The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the EBBR 30 minute netcdf header have been incorrect from the beginning of processing the data into netcdf files. The correct units are MJ/m^3/C. This does not affect the data quality. (NOTE: The actual begin date of some of these data streams is as early as 7/4/93. This DQR applies to all 30m EBBR data.) |
Measurements: | sgp30ebbrE8.b1:
sgp30ebbrE22.b1:
sgp30ebbrE20.b1:
sgp30ebbrE4.b1:
sgp30ebbrE15.b1:
sgp30ebbrE9.b1:
sgp30ebbrE26.b1:
sgp30ebbrE13.b1:
sgp30ebbrE12.b1:
sgp30ebbrE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/14/2002 | 2015 | 11/14/2002 | 2045 |
Subject: | SGP/EBBR/E13 - Data Incorrect during 6 month checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Some of the measurements are incorrect during the 6 month checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/23/2002 | 0000 | 10/31/2002 | 2130 |
Subject: | SGP/EBBR/E13 - Wind Speed Stalling at Low Speeds |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Perhaps because of excessive bearing wear, the wind speed sensor had a high starting threshhold with wind speeds below about 2 m/s. Wind speed measurements at all speeds were probably too low. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2001 | 1750 | 02/22/2002 | 2100 |
Subject: | SGP/EBBR/E13 - REPROCESS: Soil Moisture #1 Offset1 |
DataStreams: | sgp30ebbrE13.b1 |
Description: | The wrong offset (1.4656) was used in the calibration coefficients for Soil Moisture Probe #1. The correct offset is 14.656. Sensible and Latent Heat Flux measurements are not significantly affected. |
Measurements: | sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/18/2002 | 1210 | 09/19/2002 | 0245 |
Subject: | SGP/EBBR/E13 - AEM Jung between Home Positions |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | When the AEM (Automatic Exchange Mechanism) is hung inbetween home positions, the gradients of temperature and relative humidity, and thus sensible and latent heat fluxes, are incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/01/2003 | 1905 | 05/01/2003 | 1935 |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/23/2003 | 1830 | 05/01/2003 | 2000 |
Subject: | SGP/EBBR/E13 - Water In Net Radiometer; Surface Fluxes are Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The net radiometer top dome was punctured by migrating birds. This alone does not cause incorrect net radiation measurements. However, when it subsequently rains, water collects in the bottom dome, causing the net radiation measurements to be too large during the day and too small at night. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/29/2003 | 1800 | 10/02/2003 | 1845 |
Subject: | SGP/EBBR/E13 - Water in Net Radiometer, Surface Fluxes Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The net radiometer top dome was punctured by migrating birds. This alone does not cause incorrect net radiation measurements. However, when it subsequently rains, water collects in the bottom dome, causing the net radiation measurements to be too large during the day and too small at night. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 1830 | 10/13/2003 | 1900 |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/09/2003 | 2145 | 12/10/2003 | 0115 |
Subject: | SGP/EBBR/E13 - Wind Speed Sensor Frozen By Ice Storm |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The wind speed sensor was frozen stopped by ice from a storm. The wind speed and residual wind speed measurements are incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/14/2003 | 1730 | 12/14/2003 | 1830 |
Subject: | SGP/EBBR/E13 - Net Radiometer Iced Over During Storm |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The net radiometer was covered with ice from a storm. Net radiation values are incorrect, and are sometimes even negative during the daytime. Sensible and latent heat fluxes are therefore incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/09/2004 | 1125 | 02/09/2004 | 1500 |
Subject: | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/02/2004 | 0040 | 02/03/2004 | 1810 |
02/09/2004 | 1125 | 02/09/2004 | 1500 |
Subject: | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice |
DataStreams: | sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect. |
Measurements: | sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/05/2004 | 0130 | 07/14/2004 | 1515 |
Subject: | SGP/EBBR/E13 - Automatic Exchange Mechanism Failure |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM was stuck in the home_15 position or reported near zero home signals during much of the indicated period. The Bowen ratio and latent and sensible heat fluxes were incorrect when the AEM was not operating properly; the periods of incorrect data can be determined from the home signal values. On 7/14/04 the AEM was replaced. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/11/2004 | 0230 | 08/11/2004 | 1824 |
Subject: | SGP/EBBR/E13 - Net Radiation Incorrect, Fluxes Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Rain entered the net radiometer through a crack in the upper dome and settled in the bottom dome. This caused too large net radiation measurements during the following daylight hours, until the domes were replaced and dried out the same day. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/08/2004 | 1200 | 09/15/2004 | 1930 |
Subject: | SGP/EBBR/E13 - AEM Failure, Fluxes Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM failed. Sensible and latent heat fluxes were incorrect, as well as gradient measurements. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/28/2004 | 1830 | 10/28/2004 | 1900 |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0510 | 01/08/2005 | 1745 |
01/11/2005 | 0445 | 01/12/2005 | 1310 |
Subject: | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0625 | 01/07/2005 | 1850 |
01/11/2005 | 1545 | 01/12/2005 | 0930 |
Subject: | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/11/2005 | 1430 | 05/13/2005 | 1900 |
Subject: | SGP/EBBR/E13 - Net Radiometer Tilted Half Degree West |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The net radiation daily peak on sunny days occured 1/2 hour after the net radiation peak at E2, E9, and the SIRS because the sensor was tipped to the west about 1/2 degree. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/08/2005 | 1900 | 07/06/2005 | 1630 |
Subject: | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure) |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM was stuck in the home 30 position most of this period. Therefore, the sensible and latent heat fluxes are incorrect during most of this period. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 03/31/2005 | 2100 |
Subject: | SGP/EBBR/E13 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE13.b1 |
Description: | Effective 20050331.2100, the EBBR.E13 CR10 program was revised to improve the quality of the primary measurements as follows: 1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow. This is applied to the individual soil sets. Measurements outside the limits are rejected and the measurements within the limits are used to calculate the average soil heat flow. 2) Max and min limits are used to determine incorrect values of net radiation, sensible heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal. If AEM signal is outside the limits, h and e are set to 999s. If net radiation is outside the limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s. Virtually no incorrect soil measurement will affect the primary measurements of h and e. By setting h and e to 999s, it can be easily seen that the primary variables are incorrect; no other interpretation is possible. Prior to 20050331, the improved CR10 program was NOT in effect. DQRs have been submitted for known instances of incorrect soil measurements which affected the quality of the primary measurements of h and e. Note: the DQR begin date is the begin date of the sgp30ebbrE13.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE13.a1). |
Measurements: | sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/01/2005 | 2030 | 10/12/2005 | 2130 |
Subject: | SGP/EBBR/E13 - Fluxes Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM has not been reaching the home_30 position fully a few times a day on most days, resulting in zero home_30 measurements. The sensible and latent heat fluxes are incorrect when the home_30 measurement is near zero. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/17/2005 | 2230 | 10/05/2005 | 1600 |
Subject: | SGP/EBBR/E13 - Loose connections |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The tair_bot spiked around midday, as if it is temperature related, and may have indicated a loose connection. The sensible and latyent heat fluxes and Bowen ratio were incorrect when this condition occurred. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/03/2005 | 2130 | 03/31/2005 | 2100 |
Subject: | SGP/EBBR/E13 - Average Soil Heat Flux Incorrect |
DataStreams: | sgp30ebbrE13.b1 |
Description: | A typo in the version 9 EBBR program caused average soil heat flow to be zero, resulting in both sensible and latent heat fluxes being approximately 20 watts per meter squared too large during the middle of the day. |
Measurements: | sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E13 - metadata corrections |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E13 data collected by ARM back to the installation of the instrument in September 1992. Please see the current metadata for correct information. These changes do not affect data values or quality. The changes are summarized below: 1) Update of "sensor location" information 2) Addition of installation dates for systems 3) Correction of soil type 4) Correction of soil moisture units (from "by volume" to "gravimetric") |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/2005 | 0900 | 12/20/2005 | 1600 |
12/21/2005 | 0500 | 12/21/2005 | 1830 |
Subject: | SGP/EBBR/E13 - Wind Speed Sensor Frozen |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The wind speed sensor was frozen to a stopped posiiton; wind speed data is incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/2006 | 1730 | 01/09/2006 | 0730 |
01/10/2006 | 1330 | 01/10/2006 | 1930 |
02/17/2006 | 2005 | 02/20/2006 | 1030 |
Subject: | SGP/EBBR/E13 - Missing Data |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The Data was missing during these three periods for various reasons. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/22/2006 | 2330 | 01/26/2006 | 2040 |
Subject: | SGP/EBBR/E13 - Flux and Gradient Measurements Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM hung in one position; flux and gradient measurements were therefore incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/02/2006 | 0330 | 04/05/2006 | 1435 |
Subject: | SGP/EBBR/E13 - Net Radiation and Fluxes Suspect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The net radiometer had water in it, making the net radiation and flux measurements suspect; the latter do not appear to be incorrect, but should be considered as suspect anyway. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/23/2006 | 2300 | 04/23/2006 | 2300 |
06/03/2006 | 1900 | 06/04/2006 | 2330 |
Subject: | SGP/EBBR/E13 - Left Air Temperature Incorrect - Fluxes Affected |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The left air temperature was incorrect, thus the Bowen ratio and sensible and latent heat fluxes were incorrect also. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/30/2006 | 2100 | 05/01/2006 | 1530 |
06/05/2006 | 2330 | 06/06/2006 | 1600 |
06/14/2006 | 2030 | 06/15/2006 | 1430 |
Subject: | SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The AEM did not function properly, thus sensible and latent heat fluxes were incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/01/2006 | 1700 | 07/06/2006 | 2200 |
Subject: | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect When Pressure Offscale |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | There were several half hours during this period when the pressure went offscale or at least to a high value, causing the sensible and latent heat fluxes to be incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/05/2006 | 1730 | 08/10/2006 | 1730 |
08/23/2006 | 1700 | 08/25/2006 | 1700 |
08/31/2006 | 2030 | 09/01/2006 | 1900 |
Subject: | SGP/EBBR/E13 - Soil Heat Flow #3 Large Negative |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Description: | During this period Soil Heat Flow #3 was sometimes incorrect (large negative); during those times, sensible and latent heat fluxes and average soil heat flux were sometimes (but not always incorrect). |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/22/2006 | 1630 | 08/22/2006 | 1830 |
08/24/2006 | 1530 | 08/24/2006 | 2000 |
08/29/2006 | 0830 | 08/29/2006 | 1200 |
Subject: | SGP/EBBR/E13 - Pressure and Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | During spikes in pressure upwards or downwards the sensible and latent heat fluxes were incorrect. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/28/2006 | 0030 | 08/28/2006 | 0730 |
Subject: | SGP/EBBR/E13 - Most Measurements Incorrect When Battery Voltage Too low |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Most measurements were incorrect during this period because the battery voltage was below 10.5 volts. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/17/2006 | 0700 | 10/23/2006 | 1615 |
Subject: | SGP/EBBR/E13 - Battery failure |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | Data was missing entirely on parts of 10/22 and 10/23. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/02/2006 | 0400 | 09/14/2006 | 1900 |
Subject: | SGP/EBBR/E13 - Radiometer dome broken |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The top net radiometer dome was broken, yielding net radiation, sensible heat flux and latent heat flux that were too low. The BEFLUX (SIRS) net radiation can be used as a replacement for the EBBR net radiation. To correct the sensible and latent heat fluxes, determine the ratio of SIRS net radiation to EBBR net radiation for each daylight half hour and multiply that ratio times H and LE to obtain approximate corrected flux values. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/18/2008 | 1000 | 03/27/2008 | 1930 |
Subject: | SGP/EBBR/E13 - Wind direction failure |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The EBBR wind direction was stuck at 135 degrees; this reading indicates a failure of the sensor electronics. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2009 | 2015 | 01/28/2009 | 2000 |
Subject: | SGP/EBBR/E13 - Wind Speed Incorrect |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
Description: | The wind speed sensor was stopped by freezing rain. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1:
sgp30ebbrE13.b1:
|