DQR ID | Subject | Data Streams Affected |
---|---|---|
D041222.14 | SGP/EBBR/E18 - 6 Month Checks | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D050206.12 | SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D050207.8 | SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice Storm | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D050719.11 | SGP/EBBR/E18 - Improved EBBR CR10 Program | sgp30ebbrE18.b1 |
D051106.10 | SGP/EBBR/E18 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D051106.26 | SGP/EBBR/E18 - Average Soil Heat Flux Incorrect | sgp30ebbrE18.b1 |
D051111.13 | SGP/EBBR/E18 - metadata corrections | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D060501.17 | SGP/EBBR/E18 - Wind Speed Zero | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D060818.6 | SGP/EBBR/E18 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
D061103.3 | SGP/EBBR/E18 - Sensible and Latent Heat Fluxes Incorrect | sgp30ebbrE18.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/28/2004 | 2230 | 09/28/2004 | 2300 |
Subject: | SGP/EBBR/E18 - 6 Month Checks |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 1810 | 01/06/2005 | 2045 |
Subject: | SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.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: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/07/2005 | 0010 | 01/07/2005 | 1550 |
Subject: | SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.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: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 03/30/2005 | 0000 |
Subject: | SGP/EBBR/E18 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Effective 20050330.0000, the EBBR.E18 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 20050330, 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 sgp30ebbrE18.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE18.a1). |
Measurements: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/27/2005 | 0730 | 08/03/2005 | 2100 |
Subject: | SGP/EBBR/E18 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The net radiometer top dome was broken and water got inside, making the net radiation, and sensible and latent heat flux measurements incorrect. |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2005 | 2330 | 03/30/2005 | 0000 |
Subject: | SGP/EBBR/E18 - Average Soil Heat Flux Incorrect |
DataStreams: | sgp30ebbrE18.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: | sgp30ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E18 - metadata corrections |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E18 data collected by ARM back to the installation of the instrument in July 1997. 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 type 4) Correction of soil moisture units (from "by volume" to "gravimetric") |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/22/2006 | 0000 | 01/26/2006 | 0530 |
02/18/2006 | 0400 | 02/18/2006 | 2030 |
02/20/2006 | 0200 | 02/24/2006 | 1630 |
03/31/2006 | 0530 | 03/31/2006 | 0900 |
Subject: | SGP/EBBR/E18 - Wind Speed Zero |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | Wind Speed was zero, presumably because the sensor was frozen stopped during freezing rain. |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/31/2006 | 0430 | 06/02/2006 | 2130 |
Subject: | SGP/EBBR/E18 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect |
DataStreams: | sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1 |
Description: | The net radiometer dome was cracked and water had gotten in, resulting in incorrect net radiation measurements and therefore incorrect sensible and latent heat flux measurements. |
Measurements: | sgp5ebbrE18.b1:
sgp30ebbrE18.b1:
sgp15ebbrE18.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/30/2006 | 2200 | 11/07/2006 | 2130 |
Subject: | SGP/EBBR/E18 - Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp30ebbrE18.b1 |
Description: | Sensible and latent heat fluxes were incorrect during this period because the AEM was not exchanging. |
Measurements: | sgp30ebbrE18.b1:
|