DQR ID | Subject | Data Streams Affected |
---|---|---|
D000210.3 | SGP/EBBR - EBBR E22 Moved, Data Missing/Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D000210.4 | SGP/EBBR - EBBR E22 Net Radiation Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D000301.11 | SGP/EBBR - EBBR E22 Soil Moistures Negative | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
D000302.2 | SGP/EBBR - EBBR E22 Soil Moistures Negative | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
D010213.8 | SGP/EBBR/E22 - EBBR E22 Wind Speed Iced | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D010427.11 | SGP EBBR E22 - E22 EBBR Data Incorrect During Logger Replacement | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.00, sgp5ebbrE22.b1 |
D010427.13 | SGP EBBR E22 - E22 EBBR Soil Moisture Lower Than Measurement Capability | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
D010427.14 | SGP EBBR E22 - E22 EBBR Soil Moisture #3 Lower Than Can Be Measured | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
D010427.15 | SGP EBBR E22 - E22 EBBR Net Radiation Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D011127.32 | SGP EBBR E22 - E22 EBBR Data Incorrect During 6 Month Checks | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D011206.4 | SGP EBBR E22 - E22 EBBR 30 Minute Data Incorrect After Missing Data | sgp30ebbrE22.b1 |
D020628.19 | SGP/EBBR/E22 - T/RH Check | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D020628.5 | SGP/EBBR/E22 - 3-month Check | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D020716.17 | SGP/EBBR/E22 - 6 Month Checks | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D020716.3 | SGP/EBBR/E22 - Annual Calibration Changeout | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D020717.34 | SGP/EBBR/E22 - All Measurements Zero | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.00, sgp5ebbrE22.b1 |
D020717.35 | SGP/EBBR/E22 - AEM Hung or High Home Signals | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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 |
D030110.26 | SGP/EBBR/E22 - Data Incorrect during 6 month checks | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D030117.16 | SGP/EBBR/E22 - AEM Hung between home positions | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D030117.17 | SGP/EBBR/E22 - Water inside Broken Net Rad Dome | sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D030711.7 | SGP/EBBR/E22 - home30 too large | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D030712.22 | SGP/EBBR/E22 - 6 Month Checks | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D030729.4 | SGP/EBBR/E22 - AEM Hung Inbetween Home Positions | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D030916.2 | SGP/EBBR/E22 - AEM Home Signals Too High | sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D031031.8 | SGP/EBBR/E22 - Water in Net Radiometer, Surface Fluxes Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
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 |
D040304.21 | SGP/EBBR/E22 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D040304.22 | SGP/EBBR/E22 - Wind Direction Frozen Stopped By Ice | sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D040706.2 | SGP/EBBR/E22 - Net Radiation Incorrect | sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D040723.3 | SGP/EBBR/E22 - Water In Net Radiometer | sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D041222.17 | SGP/EBBR/E22 - 6 Month Checks | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D050206.15 | SGP/EBBR/E22 - Wind Speed Frozen Stopped By Ice Storm | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D050207.11 | SGP/EBBR/E22 - Wind Direction Frozen Stopped By Ice Storm | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D050215.21 | SGP/EBBR/E22 - Wind Speed Frozen Stopped By Ice | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D050215.22 | SGP/EBBR/E22 - Wind Direction Frozen Stopped By Ice | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D050323.2 | SGP/EBBR/E22 - Net Radiation Too Low - Top Dome Broken | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D050719.14 | SGP/EBBR/E22 - Improved EBBR CR10 Program | sgp30ebbrE22.b1 |
D051106.13 | SGP/EBBR/E22 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D051106.29 | SGP/EBBR/E22 - Average Soil Heat Flux Incorrect | sgp30ebbrE22.b1 |
D051112.8 | SGP/EBBR/E22 - metadata corrections | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D060112.1 | SGP/EBBR/E22 - Sensible and Latent Heat Fluxes Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D060428.4 | SGP/EBBR/E22 - Fluxes Incorrect When Soil Heat Flow #3 Out of Range | sgp30ebbrE22.b1 |
D060501.25 | SGP/EBBR/E22 - Wind Speed Sensor Frozen Stopped | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D060921.8 | SGP/EBBR/E22 - Net Radiation and Sensible and Latent Heat Fluxes Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D061106.5 | SGP/EBBR/E22 - Soil Heat Flow #4 Incorrect - Sensible and Latent Heat Fluxes Sometimes Affected | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
D070426.1 | SGP/EBBR/E22 - Wind Direction Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
D070815.6 | SGP/EBBR/E22 - H and LE Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
D090313.6 | SGP/EBBR/E22 - Wind Speed Incorrect | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/29/1999 | 1415 | 11/02/1999 | 2030 |
Subject: | SGP/EBBR - EBBR E22 Moved, Data Missing/Incorrect |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | During, and as a consequence of, the relocation of E22 EBBR, some data is missing or incorrect during the period above. The data was sneakernetted on 3 Nov 99, so some of the data may have been recovered. Some of the data during the period is incorrect as a consequence of damage done by cattle during the period; inspection of the data is required to determine incorrect data. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/29/1999 | 1430 | 11/03/1999 | 1930 |
Subject: | SGP/EBBR - EBBR E22 Net Radiation Incorrect |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | The upper dome of the net radiometer was broken, probably by migrating birds, and water had drained into the bottom dome. Since much of the data is missing during the period, it is not clear exactly when the top dome was broken during the period. All net radiation data and sensible and latent heat fluxes data are incorrect for this period. The affected data fields are: 5 minute: q 15 minute: mv_q 30 minute: q, e, h |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/20/1999 | 0300 | 08/04/1999 | 1730 |
Subject: | SGP/EBBR - EBBR E22 Soil Moistures Negative |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
Description: | Because of the lack of rain, soil moistures were negative during much of the period. All five soil moisture sensors had negative outputs by early on Aug 1. The negative soil moistures affected sensible and latent heat fluxes slightly. The affected data are: 15 minute: r_sm1, r_sm2, r_sm3, r_sm4, r_sm5 30 minute: sm1, sm2, sm3, sm4, sm5, c_shf1, c_shf2, c_shf3, c_shf4, c_shf5, cs1, cs2, cs3, cs4, cs5, ces1, ces2, ces3, ces4, ces5, g1, g2, g3, g4, g5, ave_shf, e, h |
Measurements: | sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/15/1999 | 0800 | 10/30/1999 | 0300 |
Subject: | SGP/EBBR - EBBR E22 Soil Moistures Negative |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
Description: | Because of the lack of rain, all soil moistures were negative during much of the period. The negative soil moistures caused soil heat storage and thus average soil heat flux to be smaller than they should have been. The sensible and latent heat fluxes were therefore reduced slightly (approximately 0-5%). The affected data are: 15 minute: r_sm1, r_sm2, r_sm3, r_sm4, r_sm5 30 minute: sm1, sm2, sm3, sm4, sm5, c_shf1, c_shf2, c_shf3, c_shf4, c_shf5, cs1, cs2, cs3, cs4, cs5, ces1, ces2, ces3, ces4, ces5, g1, g2, g3, g4, g5, ave_shf, e, h |
Measurements: | sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/25/2000 | 1315 | 12/27/2000 | 2015 |
Subject: | SGP/EBBR/E22 - EBBR E22 Wind Speed Iced |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | The anemometer was frozen stopped by freezing rain. Indicated data is incorrect. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/05/2000 | 1900 | 04/05/2000 | 1901 |
04/05/2000 | 2000 | 04/05/2000 | 2001 |
Subject: | SGP EBBR E22 - E22 EBBR Data Incorrect During Logger Replacement |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.00, sgp5ebbrE22.b1 |
Description: | The data was incorrect during replacement of the logger. |
Measurements: | sgp5ebbrE22.00:
sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/21/2000 | 1900 | 04/27/2000 | 1031 |
05/10/2000 | 2000 | 06/11/2000 | 0531 |
07/08/2000 | 1800 | 10/16/2000 | 0231 |
Subject: | SGP EBBR E22 - E22 EBBR Soil Moisture Lower Than Measurement Capability |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
Description: | The indicated measurements were incorrect because soil moisture dropped below (sometimes even negative) the ability of the probes to measure it. |
Measurements: | sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/16/2000 | 0235 | 10/22/2000 | 0316 |
Subject: | SGP EBBR E22 - E22 EBBR Soil Moisture #3 Lower Than Can Be Measured |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
Description: | The soil moisture was too low to be measured correctly by probe #3. |
Measurements: | sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/16/2000 | 0130 | 10/18/2000 | 1841 |
Subject: | SGP EBBR E22 - E22 EBBR Net Radiation Incorrect |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | Water inside the domes of the net radiometer caused measurements from it to be incorrect. Calculated latent and sensible heat fluxes were therefore incorrect also. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.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.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | The data was incorrect during the 6 month checks. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/07/2001 | 2000 | 03/07/2001 | 2001 |
Subject: | SGP EBBR E22 - E22 EBBR 30 Minute Data Incorrect After Missing Data |
DataStreams: | sgp30ebbrE22.b1 |
Description: | Complete soil temperature information is not available when the data is missing for the previous half hour. Since soil temperature difference with time cannot be computed properly, the selected calculated quantities are incorrect. |
Measurements: | sgp30ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/08/1994 | 1650 | 11/08/1994 | 1800 |
Subject: | SGP/EBBR/E22 - T/RH Check |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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: 1650, 1655, 1700, 1705, 1710, 1715, 1720, 1725, 1730, 1735 15 minute: 1700, 1715, 1730, 1745 30 minute: 1700, 1730, 1800 (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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/11/1995 | 1630 | 10/11/1995 | 1930 |
Subject: | SGP/EBBR/E22 - 3-month Check |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
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.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | The indicated measurements were incorrect during the 6 month checks. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/1996 | 1300 | 11/06/1996 | 2300 |
11/07/1996 | 1901 | 11/07/1996 | 1930 |
Subject: | SGP/EBBR/E22 - Annual Calibration Changeout |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | On 6 November 1996 the EBBR changeout for annual calibration occurred at E22, Cordell, OK. SEBS unit 7 was removed and unit 3 was installed. Between 1300 and 2300 GMT no data or incorrect data was collected; most of the data is missing. Data for half hour 1930 GMT on 7 November is incorrect; 3 month calibration checks were being performed. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
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.b1, sgp30ebbrE22.b1, sgp5ebbrE22.00, sgp5ebbrE22.b1 |
Description: | The measurements are often all zero the first period after a CR10 restart, as occurred here. |
Measurements: | sgp5ebbrE22.00:
sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
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.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
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.b1:
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: | sgp30ebbrE2.b1:
sgp30ebbrE26.b1:
sgp30ebbrE9.b1:
sgp30ebbrE22.b1:
sgp30ebbrE13.b1:
sgp30ebbrE7.b1:
sgp30ebbrE18.b1:
sgp30ebbrE12.b1:
sgp30ebbrE4.b1:
sgp30ebbrE15.b1:
sgp30ebbrE19.b1:
sgp30ebbrE20.b1:
sgp30ebbrE8.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: | sgp30ebbrE26.b1:
sgp30ebbrE9.b1:
sgp30ebbrE7.b1:
sgp30ebbrE4.b1:
sgp30ebbrE12.b1:
sgp30ebbrE15.b1:
sgp30ebbrE22.b1:
sgp30ebbrE13.b1:
sgp30ebbrE8.b1:
sgp30ebbrE20.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.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | Some of the measurements are incorrect during the 6 month checks. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
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.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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. There is no work-around to this problem. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
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.b1, sgp5ebbrE22.b1 |
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.b1:
|
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.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
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.b1:
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.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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
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.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | The AEM was hung inbetween home positions. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
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.b1, sgp5ebbrE22.b1 |
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.b1:
|
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.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
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: | sgp30ebbrE22.b1:
sgp5ebbrE22.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: | sgp30ebbrE22.b1:
sgp5ebbrE22.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: | sgp30ebbrE22.b1:
sgp5ebbrE22.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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/24/2004 | 2345 | 01/25/2004 | 0135 |
02/01/2004 | 1920 | 02/02/2004 | 1740 |
02/03/2004 | 0350 | 02/03/2004 | 1440 |
02/05/2004 | 0925 | 02/05/2004 | 1615 |
Subject: | SGP/EBBR/E22 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/05/2004 | 1120 | 02/05/2004 | 1500 |
Subject: | SGP/EBBR/E22 - Wind Direction Frozen Stopped By Ice |
DataStreams: | 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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/22/2004 | 0400 | 06/23/2004 | 1650 |
Subject: | SGP/EBBR/E22 - Net Radiation Incorrect |
DataStreams: | sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | Rain filled the bottom of the net radiometer with water, resulting in very high net radiations. Net radiation is incorrect during this period, also causing sensible and latent heat fluxes to be incorrect. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/01/2004 | 1330 | 07/07/2004 | 1900 |
Subject: | SGP/EBBR/E22 - Water In Net Radiometer |
DataStreams: | sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | Water entered the Net Radiometer through a cracked upper dome, causing the net radiation values to be too large. As a result, latent and sensible heat flux values are also incorrect. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/27/2004 | 1700 | 10/27/2004 | 1730 |
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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0845 | 01/07/2005 | 1555 |
Subject: | SGP/EBBR/E22 - Wind Speed Frozen Stopped By Ice Storm |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0855 | 01/06/2005 | 1940 |
Subject: | SGP/EBBR/E22 - Wind Direction Frozen Stopped 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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/11/2005 | 0915 | 01/11/2005 | 2100 |
Subject: | SGP/EBBR/E22 - Wind Speed Frozen Stopped By Ice |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/11/2005 | 1730 | 01/11/2005 | 1825 |
Subject: | SGP/EBBR/E22 - Wind Direction Frozen Stopped By Ice |
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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/06/2005 | 1400 | 03/16/2005 | 1900 |
Subject: | SGP/EBBR/E22 - Net Radiation Too Low - Top Dome Broken |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | Net radiation values were too low because of a broken top dome. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.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 |
---|---|---|---|
08/27/2005 | 2000 | 08/31/2005 | 1730 |
Subject: | SGP/EBBR/E22 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.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: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/16/2005 | 1830 | 03/30/2005 | 1930 |
Subject: | SGP/EBBR/E22 - Average Soil Heat Flux Incorrect |
DataStreams: | sgp30ebbrE22.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: | 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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/10/2006 | 0730 | 01/18/2006 | 2000 |
Subject: | SGP/EBBR/E22 - Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/12/2006 | 1900 | 05/24/2006 | 1700 |
Subject: | SGP/EBBR/E22 - Fluxes Incorrect When Soil Heat Flow #3 Out of Range |
DataStreams: | sgp30ebbrE22.b1 |
Description: | When soil heat flow #3 exceeded the range limit in the EBBR program, it was replaced with 9999es. This caused the ave_shf and the sensible and latent heat fluxes to be incorrect. |
Measurements: | sgp30ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/21/2006 | 1130 | 01/21/2006 | 1700 |
01/22/2006 | 0100 | 01/22/2006 | 0730 |
Subject: | SGP/EBBR/E22 - Wind Speed Sensor Frozen Stopped |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | The wind speed sensor was frozen to a stopped condition. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/21/2006 | 0630 | 08/30/2006 | 1800 |
Subject: | SGP/EBBR/E22 - Net Radiation and Sensible and Latent Heat Fluxes Incorrect |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | Rain entered the net radiometer, causing net radiation, and thus sensible and latent heat fluxes, to be too large. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/16/2006 | 0000 | 11/08/2006 | 1940 |
Subject: | SGP/EBBR/E22 - Soil Heat Flow #4 Incorrect - Sensible and Latent Heat Fluxes Sometimes |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
Description: | Soil heat flow sensor #4 dropped to low values or offscale. Sensible and latent heat fluxes were sometimes affected. |
Measurements: | sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/16/2007 | 0400 | 04/26/2007 | 1630 |
Subject: | SGP/EBBR/E22 - Wind Direction Incorrect |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | Wind direction was flat-lining at 135 degrees and occasionally changed to 0.4 degrees. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/20/2007 | 0630 | 08/01/2007 | 2200 |
Subject: | SGP/EBBR/E22 - H and LE Incorrect |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1 |
Description: | Soil Heat Flow 1 bounced around and went offscale at times, resulting in the EBBR program setting sensible and latent heat fluxes to 9999es. The problem ended during a PM visit, possibly because of routine checks and tightening of leads in terminal strips. |
Measurements: | sgp30ebbrE22.b1:
sgp15ebbrE22.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2009 | 1845 | 01/28/2009 | 1810 |
Subject: | SGP/EBBR/E22 - Wind Speed Incorrect |
DataStreams: | sgp15ebbrE22.b1, sgp30ebbrE22.b1, sgp5ebbrE22.b1 |
Description: | The wind speed sensor was frozen stopped by freezing rain. |
Measurements: | sgp30ebbrE22.b1:
sgp5ebbrE22.b1:
sgp15ebbrE22.b1:
|