DQR ID | Subject | Data Streams Affected |
---|---|---|
D011127.32 | SGP EBBR E22 - E22 EBBR Data Incorrect During 6 Month Checks | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D020716.17 | SGP/EBBR/E22 - 6 Month Checks | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D020717.34 | SGP/EBBR/E22 - All Measurements Zero | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.00, sgp5ebbrE22.a1 |
D020717.35 | SGP/EBBR/E22 - AEM Hung or High Home Signals | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
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 |
D030110.26 | SGP/EBBR/E22 - Data Incorrect during 6 month checks | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D030117.16 | SGP/EBBR/E22 - AEM Hung between home positions | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D030117.17 | SGP/EBBR/E22 - Water inside Broken Net Rad Dome | sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D030711.7 | SGP/EBBR/E22 - home30 too large | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D030712.22 | SGP/EBBR/E22 - 6 Month Checks | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D030729.4 | SGP/EBBR/E22 - AEM Hung Inbetween Home Positions | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D030916.2 | SGP/EBBR/E22 - AEM Home Signals Too High | sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D031031.8 | SGP/EBBR/E22 - Water in Net Radiometer, Surface Fluxes Incorrect | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
D031204.20 | SGP/EBBR/E22 - 6 Month Checks | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D031222.21 | SGP/EBBR/E22 - Wind Speed Sensor Frozen By Ice Storm | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D031222.22 | SGP/EBBR/E22 - Wind Direction Sensor Frozen By Ice Storm | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D040303.2 | SGP/EBBR/E22 - Wind Speed Sensor Bearings Worn | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D050719.14 | SGP/EBBR/E22 - Improved EBBR CR10 Program | sgp30ebbrE22.b1 |
D051112.8 | SGP/EBBR/E22 - metadata corrections | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/18/2001 | 1715 | 04/18/2001 | 1821 |
10/10/2001 | 1800 | 10/10/2001 | 1857 |
Subject: | SGP EBBR E22 - E22 EBBR Data Incorrect During 6 Month Checks |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
Description: | The data was incorrect during the 6 month checks. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/15/2002 | 1810 | 05/15/2002 | 1846 |
Subject: | SGP/EBBR/E22 - 6 Month Checks |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
Description: | The indicated measurements were incorrect during the 6 month checks. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/07/2002 | 1845 | 02/07/2002 | 1901 |
Subject: | SGP/EBBR/E22 - All Measurements Zero |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.00, sgp5ebbrE22.a1 |
Description: | The measurements are often all zero the first period after a CR10 restart, as occurred here. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp5ebbrE22.00:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/17/2001 | 1230 | 01/09/2002 | 1531 |
01/09/2002 | 1545 | 01/12/2002 | 0001 |
01/12/2002 | 0515 | 01/15/2002 | 0031 |
02/08/2002 | 0845 | 02/08/2002 | 2031 |
02/08/2002 | 2145 | 02/14/2002 | 2001 |
02/14/2002 | 2015 | 02/16/2002 | 1531 |
02/16/2002 | 1945 | 02/17/2002 | 0001 |
02/17/2002 | 0415 | 02/20/2002 | 0531 |
02/20/2002 | 0815 | 02/20/2002 | 1831 |
02/28/2002 | 1030 | 03/06/2002 | 1901 |
04/21/2002 | 2000 | 05/29/2002 | 1831 |
Subject: | SGP/EBBR/E22 - AEM Hung or High Home Signals |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
Description: | The automatic exchange mechanism hung some times and continued to switch at other times, although with high home signal values. If home signal values are not in the proper ranges, the gradient calculation is not performed properly by the CR10 program. Affected flux measurements cannot be recalculated. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp15ebbrE22.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 |
---|---|---|---|
11/13/2002 | 1900 | 11/13/2002 | 1930 |
Subject: | SGP/EBBR/E22 - Data Incorrect during 6 month checks |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
Description: | Some of the measurements are incorrect during the 6 month checks. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/04/2002 | 1715 | 09/04/2002 | 1730 |
10/13/2002 | 1230 | 10/13/2002 | 1234 |
10/13/2002 | 1300 | 10/15/2002 | 1930 |
10/15/2002 | 2145 | 10/15/2002 | 1630 |
Subject: | SGP/EBBR/E22 - AEM Hung between home positions |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
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. There is no work-around to this problem. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/29/2002 | 0830 | 08/07/2002 | 1800 |
Subject: | SGP/EBBR/E22 - Water inside Broken Net Rad Dome |
DataStreams: | sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
Description: | The net radiation measurement is incorrect. Measurements calculated using net radiation are also incorrect. No work-around is possible for this situation. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/2003 | 0000 | 06/25/2003 | 1700 |
Subject: | SGP/EBBR/E22 - home30 too large |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
Description: | The home30 measurements sometimes exceeded 34.9999, resulting in the qc flag being set. However, this does not create any data quality issues. The qc flag is set just to provide an alert that the automatic exchange mechanism may have a problem; in this case data was not affected. An electronics repair solved the problem. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/30/2003 | 1720 | 04/30/2003 | 1800 |
Subject: | SGP/EBBR/E22 - 6 Month Checks |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/16/2003 | 0330 | 07/23/2003 | 1830 |
07/24/2003 | 1500 | 08/06/2003 | 1730 |
Subject: | SGP/EBBR/E22 - AEM Hung Inbetween Home Positions |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
Description: | The AEM was hung inbetween home positions. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/16/2003 | 1745 | 09/17/2003 | 1900 |
Subject: | SGP/EBBR/E22 - AEM Home Signals Too High |
DataStreams: | sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
Description: | The AEM home signals were too large at times during the indicated period; it has been determined by the vendor that this is usually caused by electrical noise in the vicinity. When the 30 minute data shows a home 30 signal of 35 or more, the bowen ratio, and sensible and latent heat flux measurements are incorrect Removing the jumper between 4L and AG on the CR10 and adding a jumper to Multiplexer 2, Set 6, between L1 and L2 fixed the problem. The vendor intends to make this modification to all EBBR systems as they return for re-calibration. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/29/2003 | 1800 | 10/01/2003 | 1630 |
Subject: | SGP/EBBR/E22 - Water in Net Radiometer, Surface Fluxes Incorrect |
DataStreams: | sgp15ebbrE22.a1, sgp15ebbrE22.b1, sgp30ebbrE22.a1, sgp30ebbrE22.b1, sgp5ebbrE22.a1 |
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: | sgp30ebbrE22.b1:
sgp5ebbrE22.a1:
sgp30ebbrE22.a1:
sgp15ebbrE22.a1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/15/2003 | 1900 | 10/15/2003 | 1930 |
Subject: | SGP/EBBR/E22 - 6 Month Checks |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks. |
Measurements: | sgp5ebbrE22.b1:
sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/12/2003 | 1810 | 12/13/2003 | 2100 |
Subject: | SGP/EBBR/E22 - Wind Speed Sensor Frozen By Ice Storm |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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: | sgp5ebbrE22.b1:
sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/13/2003 | 2345 | 12/14/2003 | 1520 |
Subject: | SGP/EBBR/E22 - Wind Direction Sensor Frozen By Ice Storm |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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: | sgp5ebbrE22.b1:
sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/13/2003 | 0000 | 03/17/2004 | 1835 |
Subject: | SGP/EBBR/E22 - Wind Speed Sensor Bearings Worn |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | Wind speed was too low and/or often at or near zero due to worn bearings in the wind speed sensor. Sensor was replaced 3/17/04. |
Measurements: | sgp5ebbrE22.b1:
sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 03/30/2005 | 1930 |
Subject: | SGP/EBBR/E22 - Improved EBBR CR10 Program |
DataStreams: | sgp30ebbrE22.b1 |
Description: | Effective 20050330.1930, the EBBR.E20 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 sgp30ebbrE20.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE20.a1). |
Measurements: | sgp30ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0000 | 07/22/2005 | 2359 |
Subject: | SGP/EBBR/E22 - metadata corrections |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E22 data collected by ARM back to the installation of the instrument in April 1993. 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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|