DQR ID | Subject | Data Streams Affected |
---|---|---|
D041222.9 | SGP/EBBR/E8 - 6 Month Checks | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D050206.7 | SGP/EBBR/E8 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D050207.3 | SGP/EBBR/E8 - Wind Direction Frozen Stopped By Ice Storm | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D050215.12 | SGP/EBBR/E8 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D050215.13 | SGP/EBBR/E8 - Wind Direction Frozen Stopped By Ice | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D050413.3 | SGP/EBBR/E8 - Battery Voltage Problem | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D050719.7 | SGP/EBBR/E8 - Improved EBBR CR10 Program | sgp30ebbrE8.b1 |
D051106.21 | SGP/EBBR/E8 - Average Soil Heat Flux Incorrect | sgp30ebbrE8.b1 |
D051106.4 | SGP/EBBR/E8 - Soil Heat Flow #2 Incorrect | sgp15ebbrE8.b1, sgp30ebbrE8.b1 |
D051106.5 | SGP/EBBR/E8 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D051112.5 | SGP/EBBR/E8 - metadata corrections | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D060111.4 | SGP/EBBR/E8 - AEM Not Exchanging | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D060501.6 | SGP/EBBR/E8 - Flux and Gradient Measurements Suspect | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D060501.8 | SGP/EBBR/E8 - Wind Speed Sensor Frozen Stopped | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D060501.9 | SGP/EBBR/E8 - Fluxes Incorrect; Left Humidity Near Zero | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D060508.2 | SGP/EBBR/E8 - Sensible and Latent Heat Flux Suspect | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D060818.8 | SGP/EBBR/E8 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
D070223.2 | SGP/EBBR/E8 - Failed Temp/RH sensor | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/19/2004 | 1730 | 10/19/2004 | 1800 |
Subject: | SGP/EBBR/E8 - 6 Month Checks |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/03/2005 | 0810 | 01/04/2005 | 2100 |
Subject: | SGP/EBBR/E8 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.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: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/03/2005 | 0850 | 01/04/2005 | 2100 |
Subject: | SGP/EBBR/E8 - Wind Direction Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.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: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/12/2005 | 0720 | 01/12/2005 | 1605 |
02/07/2005 | 0200 | 02/08/2005 | 1930 |
Subject: | SGP/EBBR/E8 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.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: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/07/2005 | 0500 | 02/08/2005 | 0330 |
Subject: | SGP/EBBR/E8 - Wind Direction Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.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: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/21/2005 | 0230 | 04/26/2005 | 2215 |
Subject: | SGP/EBBR/E8 - Battery Voltage Problem |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | Battery voltage was too low to give correct data. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 03/22/2005 | 1730 |
Subject: | SGP/EBBR/E8 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE8.b1 |
Description: | Effective 20050322.1730, the EBBR.E8 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 20050322, 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 sgp30ebbrE8.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE8.a1). |
Measurements: | sgp30ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/08/2005 | 1800 | 03/22/2005 | 1730 |
Subject: | SGP/EBBR/E8 - Average Soil Heat Flux Incorrect |
DataStreams: | sgp30ebbrE8.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: | sgp30ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/28/2005 | 1930 | 06/28/2005 | 1930 |
Subject: | SGP/EBBR/E8 - Soil Heat Flow #2 Incorrect |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1 |
Description: | Soil Heat Flow #2 spiked upwards briefly at 1930 GMT. |
Measurements: | sgp30ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/04/2005 | 2000 | 08/09/2005 | 2030 |
Subject: | SGP/EBBR/E8 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | The top dome of the net radiometer was cracked and water had gotten inside it, so net radiation, and sensible and latent heat fluxes were incorrect. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E8 - metadata corrections |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E8 data collected by ARM back to the installation of the instrument in December 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 the systems 3) Correction of soil moisture units (from "by volume" to "gravimetric") |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/26/2005 | 1900 | 01/10/2006 | 1630 |
Subject: | SGP/EBBR/E8 - AEM Not Exchanging |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | The AEM hung in one position frequently and sometimes for many days during this period While the AEM was not switching, the sensible and latent heat fluxes and gradient measurements were incorrect. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/07/2005 | 0000 | 01/24/2006 | 2330 |
Subject: | SGP/EBBR/E8 - Flux and Gradient Measurements Suspect |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | The flux and gradient measurements were often incorrect when the AEM did not function properly. The user needs to inspect the data (particularly the home signals) to determine when the AEM was and was not working. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/21/2006 | 0230 | 03/21/2006 | 1600 |
Subject: | SGP/EBBR/E8 - Wind Speed Sensor Frozen Stopped |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | Freezing rain froze the wind speed sensor to a stopped condition. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/22/2006 | 2030 | 04/04/2006 | 1500 |
Subject: | SGP/EBBR/E8 - Fluxes Incorrect; Left Humidity Near Zero |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | The left humidity was intermittently incorrect, therefore the sensible and latent heat fluxes were also. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.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 |
---|---|---|---|
06/23/2006 | 0130 | 06/27/2006 | 1730 |
Subject: | SGP/EBBR/E8 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | The net radiometer top dome was broken and water had gotten into it. Sensible and latent heat fluxes and net radiation were therefore incorrect. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/22/2007 | 1630 | 03/06/2007 | 2100 |
Subject: | SGP/EBBR/E8 - Failed Temp/RH sensor |
DataStreams: | sgp15ebbrE8.b1, sgp30ebbrE8.b1, sgp5ebbrE8.b1 |
Description: | The right Temperature-Humidity sensor failed. The measured temperature gradients were incorrect and thus the sensible and latent heat fluxes were incorrect for this extended period. The sensor was replaced March 6. |
Measurements: | sgp30ebbrE8.b1:
sgp5ebbrE8.b1:
sgp15ebbrE8.b1:
|