DQR ID | Subject | Affected Data Streams | Data Quality Metric |
---|---|---|---|
D051111.11 | SGP/EBBR/E13 - metadata corrections | sgp30ebbrE13.b1 | Does not affect quality |
D100727.5 | SGP/EBBR/E13 - Incorrect Sensible and Latent Heat Fluxes | sgp5ebbrE13.b1 | Incorrect |
D070917.1 | SGP/EBBR/E13 - Radiometer dome broken | sgp30ebbrE13.b1 | Incorrect |
D041222.12 | SGP/EBBR/E13 - 6 Month Checks | sgp5ebbrE13.b1 | Incorrect |
D040304.13 | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice | sgp5ebbrE13.b1 | Incorrect |
D040304.12 | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice | sgp5ebbrE13.b1 | Incorrect |
D090313.13 | SGP/EBBR/E13 - Wind Speed Incorrect | sgp5ebbrE13.b1 | Incorrect |
D031204.10 | SGP/EBBR/E13 - 6 Month Checks | sgp30ebbrE13.b1 | Incorrect |
D051104.3 | SGP/EBBR/E13 - Loose connections | sgp30ebbrE13.b1 | Incorrect |
D051104.2 | SGP/EBBR/E13 - Fluxes Incorrect | sgp5ebbrE13.b1 | Incorrect |
D040915.6 | SGP/EBBR/E13 - AEM Failure, Fluxes Incorrect | sgp5ebbrE13.b1 | Incorrect |
D060622.2 | SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems | sgp5ebbrE13.b1 | Incorrect |
D061114.6 | SGP/EBBR/E13 - Battery failure | sgp30ebbrE13.b1 | Incorrect |
D060501.12 | SGP/EBBR/E13 - Missing Data | sgp30ebbrE13.b1 | Incorrect |
D050207.6 | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice Storm | sgp5ebbrE13.b1 | Incorrect |
D060501.13 | SGP/EBBR/E13 - Flux and Gradient Measurements Incorrect | sgp30ebbrE13.b1 | Incorrect |
D050510.3 | SGP/EBBR/E13 - Net Radiometer Tilted Half Degree West | sgp30ebbrE13.b1 | Suspect |
D031031.5 | SGP/EBBR/E13 - Water in Net Radiometer, Surface Fluxes Incorrect | sgp5ebbrE13.b1 | Incorrect |
D040608.6 | SGP/EBBR/E13 - Automatic Exchange Mechanism Failure | sgp30ebbrE13.b1 | Incorrect |
D080318.1 | SGP/EBBR/E13 - Wind direction failure | sgp5ebbrE13.b1 | Incorrect |
D040915.2 | SGP/EBBR/E13 - Net Radiation Incorrect, Fluxes Incorrect | sgp30ebbrE13.b1 | Incorrect |
D060501.14 | SGP/EBBR/E13 - Net Radiation and Fluxes Suspect | sgp5ebbrE13.b1 | Suspect |
D060818.10 | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect When Pressure Offscale | sgp5ebbrE13.b1 | Incorrect |
D031222.16 | SGP/EBBR/E13 - Wind Speed Sensor Frozen By Ice Storm | sgp30ebbrE13.b1 | Incorrect |
D031222.17 | SGP/EBBR/E13 - Net Radiometer Iced Over During Storm | sgp30ebbrE13.b1 | Incorrect |
D060111.9 | SGP/EBBR/E13 - Wind Speed Sensor Frozen | sgp30ebbrE13.b1 | Incorrect |
D101004.2 | SGP/EBBR/E13 - Net Radiation Too Large | sgp30ebbrE13.b1 | Incorrect |
D050622.1 | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure) | sgp5ebbrE13.b1 | Incorrect |
D050206.10 | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice Storm | sgp5ebbrE13.b1 | Incorrect |
D060921.6 | SGP/EBBR/E13 - Pressure and Sensible and Latent Heat Fluxes Incorrect | sgp5ebbrE13.b1 | Incorrect |
D060921.7 | SGP/EBBR/E13 - Most Measurements Incorrect When Battery Voltage Too low | sgp5ebbrE13.b1 | Incorrect |
D060622.1 | SGP/EBBR/E13 - Left Air Temperature Incorrect - Fluxes Affected | sgp30ebbrE13.b1 | Incorrect |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2003-10-13 | 00:00:00 | 2005-07-22 | 23:59:00 | Does not affect quality |
Subject: | SGP/EBBR/E13 - metadata corrections |
---|---|
Affected Datastreams: | sgp30ebbrE13.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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2010-07-06 | 19:30:00 | 2010-07-21 | 14:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Incorrect Sensible and Latent Heat Fluxes |
---|---|
Affected Datastreams: | sgp5ebbrE13.b1 |
Description | The multiplexer to which the air temperatures were connected experienced a problem, resulting in incorrect sensible and latent heat fluxes at times. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-09-02 | 04:00:00 | 2006-09-14 | 19:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Radiometer dome broken |
---|---|
Affected Datastreams: | sgp30ebbrE13.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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2004-10-28 | 18:30:00 | 2004-10-28 | 19:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
---|---|
Affected Datastreams: | sgp5ebbrE13.b1 |
Description | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2004-02-02 | 00:40:00 | 2004-02-03 | 18:10:00 | Incorrect |
2004-02-09 | 11:25:00 | 2004-02-09 | 15:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice |
---|---|
Affected Datastreams: | 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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2004-02-09 | 11:25:00 | 2004-02-09 | 15:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice |
---|---|
Affected Datastreams: | 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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2009-01-26 | 20:15:00 | 2009-01-28 | 20:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Wind Speed Incorrect |
---|---|
Affected Datastreams: | sgp5ebbrE13.b1 |
Description | The wind speed sensor was stopped by freezing rain. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2003-10-13 | 18:30:00 | 2003-10-13 | 19:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - 6 Month Checks |
---|---|
Affected Datastreams: | sgp30ebbrE13.b1 |
Description | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2005-08-17 | 22:30:00 | 2005-10-05 | 16:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Loose connections |
---|---|
Affected Datastreams: | sgp30ebbrE13.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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2005-10-01 | 20:30:00 | 2005-10-12 | 21:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Fluxes Incorrect |
---|---|
Affected Datastreams: | 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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2004-09-08 | 12:00:00 | 2004-09-15 | 19:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - AEM Failure, Fluxes Incorrect |
---|---|
Affected Datastreams: | sgp5ebbrE13.b1 |
Description | The AEM failed. Sensible and latent heat fluxes were incorrect, as well as gradient measurements. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-06-14 | 20:30:00 | 2006-06-15 | 14:30:00 | Incorrect |
2006-06-05 | 23:30:00 | 2006-06-06 | 16:00:00 | Incorrect |
2006-04-30 | 21:00:00 | 2006-05-01 | 15:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems |
---|---|
Affected Datastreams: | sgp5ebbrE13.b1 |
Description | The AEM did not function properly, thus sensible and latent heat fluxes were incorrect. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-10-17 | 07:00:00 | 2006-10-23 | 16:15:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Battery failure |
---|---|
Affected Datastreams: | sgp30ebbrE13.b1 |
Description | Battery voltage dropped below 10.5 V, causing all measurements to be incorrect or suspect. Data was missing entirely on parts of 10/22 and 10/23. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-02-17 | 20:05:00 | 2006-02-20 | 10:30:00 | Incorrect |
2006-01-10 | 13:30:00 | 2006-01-10 | 19:30:00 | Incorrect |
2006-01-06 | 17:30:00 | 2006-01-09 | 07:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Missing Data |
---|---|
Affected Datastreams: | sgp30ebbrE13.b1 |
Description | The Data was missing during these three periods for various reasons. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2005-01-11 | 15:45:00 | 2005-01-12 | 09:30:00 | Incorrect |
2005-01-05 | 06:25:00 | 2005-01-07 | 18:50:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Wind Direction Frozen Stopped By Ice Storm |
---|---|
Affected Datastreams: | 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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-01-22 | 23:30:00 | 2006-01-26 | 20:40:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Flux and Gradient Measurements Incorrect |
---|---|
Affected Datastreams: | sgp30ebbrE13.b1 |
Description | The AEM hung in one position; flux and gradient measurements were therefore incorrect. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2005-02-11 | 14:30:00 | 2005-05-13 | 19:00:00 | Suspect |
Subject: | SGP/EBBR/E13 - Net Radiometer Tilted Half Degree West |
---|---|
Affected Datastreams: | sgp30ebbrE13.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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2003-09-29 | 18:00:00 | 2003-10-02 | 18:45:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Water in Net Radiometer, Surface Fluxes Incorrect |
---|---|
Affected Datastreams: | 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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2004-06-05 | 01:30:00 | 2004-07-14 | 15:15:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Automatic Exchange Mechanism Failure |
---|---|
Affected Datastreams: | sgp30ebbrE13.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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2008-03-18 | 10:00:00 | 2008-03-27 | 19:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Wind direction failure |
---|---|
Affected Datastreams: | sgp5ebbrE13.b1 |
Description | The EBBR wind direction was stuck at 135 degrees; this reading indicates a failure of the sensor electronics. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2004-08-11 | 02:30:00 | 2004-08-11 | 18:24:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Net Radiation Incorrect, Fluxes Incorrect |
---|---|
Affected Datastreams: | sgp30ebbrE13.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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-04-02 | 03:30:00 | 2006-04-05 | 14:35:00 | Suspect |
Subject: | SGP/EBBR/E13 - Net Radiation and Fluxes Suspect |
---|---|
Affected Datastreams: | 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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-07-01 | 17:00:00 | 2006-07-06 | 22:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect When Pressure Offscale |
---|---|
Affected Datastreams: | 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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2003-12-09 | 21:45:00 | 2003-12-10 | 01:15:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Wind Speed Sensor Frozen By Ice Storm |
---|---|
Affected Datastreams: | sgp30ebbrE13.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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2003-12-14 | 17:30:00 | 2003-12-14 | 18:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Net Radiometer Iced Over During Storm |
---|---|
Affected Datastreams: | sgp30ebbrE13.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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2005-12-18 | 09:00:00 | 2005-12-20 | 16:00:00 | Incorrect |
2005-12-21 | 05:00:00 | 2005-12-21 | 18:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Wind Speed Sensor Frozen |
---|---|
Affected Datastreams: | sgp30ebbrE13.b1 |
Description | The wind speed sensor was frozen to a stopped posiiton; wind speed data is incorrect. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2010-07-21 | 13:30:00 | 2010-10-01 | 20:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Net Radiation Too Large |
---|---|
Affected Datastreams: | sgp30ebbrE13.b1 |
Description | The EBBR Net Radiation (Rn) values maintained a ~200 Wm^-2 reading because of poor cable lead connections. Sensible and latent heat fluxes were therefore overestimated. Sensible (H) and latent heat (LE) fluxes can be estimated in the following way: H (new) = H/[1 + (EBBR Rn - SIRS net radiation)/SIRS net radiation] LE (new) = LE/[1 + (EBBR Rn - SIRS net radiation)/SIRS net radiation] |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2005-06-08 | 19:00:00 | 2005-07-06 | 16:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure) |
---|---|
Affected Datastreams: | 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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2005-01-11 | 04:45:00 | 2005-01-12 | 13:10:00 | Incorrect |
2005-01-05 | 05:10:00 | 2005-01-08 | 17:45:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Wind Speed Frozen Stopped By Ice Storm |
---|---|
Affected Datastreams: | 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 |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-08-24 | 15:30:00 | 2006-08-24 | 20:00:00 | Incorrect |
2006-08-22 | 16:30:00 | 2006-08-22 | 18:30:00 | Incorrect |
2006-08-29 | 08:30:00 | 2006-08-29 | 12:00:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Pressure and Sensible and Latent Heat Fluxes Incorrect |
---|---|
Affected Datastreams: | sgp5ebbrE13.b1 |
Description | During spikes in pressure upwards or downwards the sensible and latent heat fluxes were incorrect. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-08-28 | 00:30:00 | 2006-08-28 | 07:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Most Measurements Incorrect When Battery Voltage Too low |
---|---|
Affected Datastreams: | sgp5ebbrE13.b1 |
Description | Most measurements were incorrect during this period because the battery voltage was below 10.5 volts. |
Measurements |
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
2006-04-23 | 23:00:00 | 2006-04-23 | 23:00:00 | Incorrect |
2006-06-03 | 19:00:00 | 2006-06-04 | 23:30:00 | Incorrect |
Subject: | SGP/EBBR/E13 - Left Air Temperature Incorrect - Fluxes Affected |
---|---|
Affected Datastreams: | sgp30ebbrE13.b1 |
Description | The left air temperature was incorrect, thus the Bowen ratio and sensible and latent heat fluxes were incorrect also. |
Measurements |
|