DQR ID | Subject | Data Streams Affected |
---|---|---|
D970729.1 | SGP/EBBR/E20 - Reprocess: E20 Soil Probes #3 Cables Cut | sgp15ebbrE20.a1, sgp30ebbrE20.a1 |
D970730.2 | SGP/EBBR/E12 - Wind Direction Sensor Malfunctions | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D971027.6 | SGP/EBBR/E18 - Left RH Probe Temperature Incorrect | sgp15ebbrE18.a1, sgp30ebbrE18.a1 |
D980117.15 | SGP/EBBR/E7 - EBBR Frozen Wind Speed | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
D980117.17 | SGP/EBBR/E12- EBBR Frozen Wind Speed | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D980117.20 | SGP/EBBR/E20- EBBR Frozen Wind Speed | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D980117.26 | SGP/EBBR/E12 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown) | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D980117.28 | SGP/EBBR/E20 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown) | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D980117.32 | SGP/EBBR/E12 - EBBR Net Radiometer Domes Pierced, Water Inside - Data Affected | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D980117.6 | SGP/EBBR/E12 - AEM Failure and Replacement | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D980410.1 | SGP/EBBR/E7 - Right T/RH Probe Temperature Incorrect | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.00, sgp5ebbrE7.a0 |
D980410.10 | SGP/EBBR/E20 - Wind Speed Sensor Frozen | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.00, sgp5ebbrE20.a0 |
D980410.3 | SGP/EBBR/E7 - Wind Speed Sensor Frozen | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
D980413.2 | SGP/EBBR/E20 - Data Missing | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D980416.11 | SGP/EBBR/E12 - 3-Month Check | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D980416.14 | SGP/EBBR/E18 - 3 Month Check | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.a0 |
D980416.16 | SGP/EBBR/E20 - 3 Month Check | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D980416.8 | SGP/EBBR/E7 - 3-Month Check | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
D980528.13 | SGP/EBBR/E12 - Wind Direction Sensor Failure | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D980529.12 | SGP/EBBR/E18 - Six Month Checks | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.a0 |
D980529.14 | SGP/EBBR/E20 - Six Month Checks | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D980529.6 | SGP/EBBR/E7 - Six-Month Checks | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
D980529.9 | SGP/EBBR/E12 - Six Month Checks | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D980623.2 | SGP/EBBR/E18 - Reprocess: E18 EBBR Net Radiometer Calibration | sgp30ebbrE18.a1, sgp5ebbrE18.a0 |
D980731.2 | SGP/EBBR/E20 - Wind Speed Incorrect | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D981113.1 | SGP/EBBR/E20 - Incorrect Data - Cattle Vandalism | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D981113.2 | SGP/EBBR/E7 - Data Incorrect Because of Recompile | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
D990127.10 | SGP/EBBR/E18 - Water In Net Radiometer, Flux Data Incorrect | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.a0 |
D990127.21 | SGP/EBBR/E12 - Wind Direction Data Incorrect (revised) | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D990127.22 | SGP/EBBR/E7 - Wind Direction Data Incorrect (revised) | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.00, sgp5ebbrE7.a0 |
D990127.23 | SGP/EBBR/E18 - Wind Direction Data Incorrect (revised) | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
D990127.25 | SGP/EBBR/E20 - Wind Direction Data Incorrect (revised) | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D990127.29 | SGP/EBBR/E20 - Wind Direction Data Incorrect | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D990127.37 | SGP/EBBR - EBBR E18 Wind Speed Data Incorrect | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
D990127.38 | SGP/EBBR/E18 - Wind Speed Data Incorrect | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
D990127.39 | SGP/EBBR/E18 - Wind Speed Data Incorrect | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
D990127.40 | SGP/EBBR/E20 - Wind Speed Data Incorrect | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D990127.41 | SGP/EBBR/E20 - Wind Speed Data Incorrect | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D990128.1 | SGP/EBBR/E12 - Wind Speed Data Incorrect | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D990128.2 | SGP/EBBR - EBBR E12 Wind Speed Data Incorrect | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.00, sgp5ebbrE12.a0 |
D990128.3 | SGP/EBBR/E7 - EBBR E7 Wind Speed Data Incorrect | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
D990128.4 | SGP/EBBR/E7 - Wind Speed Data Incorrect | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
D990129.1 | SGP/EBBR - EBBR E12 Wind Speed Data Incorrect | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.00, sgp5ebbrE12.a0 |
D990129.2 | SGP/EBBR/E12 - Data Incorrect | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.00, sgp5ebbrE12.a0 |
D990129.3 | SGP/EBBR/E12 - Temperature, RH, and Vapor Pressure Data Incorrect | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D990129.4 | SGP/EBBR/E12 - All Temperature Measurements Incorrect | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
D990129.8 | SGP/EBBR/E20 - Data Incorrect | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.00, sgp5ebbrE20.a0 |
D990218.2 | SGP/EBBR/E20 - Pressure Low | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
D990622.2 | SGP/EBBR/E18 - Pressure Incorrect | sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/11/1997 | 0000 | 07/16/1997 | 2359 |
Subject: | SGP/EBBR/E20 - Reprocess: E20 Soil Probes #3 Cables Cut |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1 |
Description: | The cables going to #3 soil temperature, moisture, and heat flow probes were cut by a mower on 11 June 1997 and were repaired on 16 July 1997. Data for the temperature probe was offscale, for the soil moisture probe was a constant 10.1 (close to the actual), and for the soil heat flow was large negative during the period. The following are the data quantities that were affected: 15 minute: rr_ts3, mv_hft3, r_sm3 30 minute: ts3, ces3, shf3, c_shf3, cs3, g3, ave_shf, e, h Sensible, latent, and soil heat fluxes can be recalculated using the values from probes 1, 2, 4, and 5, as follows. ave_shf = (g1 + g2 + g4 + g5)/4 e = -(q + ave_shf)/(1 +bowen) h = -(e + ave_shf +q) |
Measurements: | sgp30ebbrE20.a1:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/03/1997 | 1200 | 06/08/1997 | 1515 |
Subject: | SGP/EBBR/E12 - Wind Direction Sensor Malfunctions |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | For much of the period above, a malfunction in the E12 EBBR wind direction sensor (insect larvae shorting out the circuit board) caused incorrect values for 5 minute res_ws, wind_d, and sigma_wd, 15 minute mv_wind_d, and 30 minute res_ws, wind_d, and sigma_wd. Wind direction normally indicated north (near 0 or 360 degrees); there were some times during the period when wind directions looked good, but the lack of variation in direction and sigma implies that the data is suspect. Therefore, it would be wise to flag all of the values listed above during the entire time period as incorrect. The wind direction sensor (S/N 3081) was replaced with S/N 3042 at 1515 GMT on June 8, 1997. |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/10/1997 | 2000 | 10/23/1997 | 1700 |
Subject: | SGP/EBBR/E18 - Left RH Probe Temperature Incorrect |
DataStreams: | sgp15ebbrE18.a1, sgp30ebbrE18.a1 |
Description: | The left humidity probe temperature produced incorrect values from the time of installation of the E18 EBBR until 23 October at 1700 GMT because of a poor connection. |
Measurements: | sgp15ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/1998 | 0950 | 01/04/1998 | 1950 |
01/08/1998 | 0850 | 01/08/1998 | 1645 |
Subject: | SGP/EBBR/E7 - EBBR Frozen Wind Speed |
DataStreams: | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
Description: | Wind speed cups were frozen during the indicated time periods. All 5, 15, and 30 minute data values indicated are incorrect for the periods listed. |
Measurements: | sgp15ebbrE7.a1:
sgp30ebbrE7.a1:
sgp5ebbrE7.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/1998 | 0750 | 01/04/1998 | 1900 |
01/08/1998 | 0705 | 01/08/1998 | 1925 |
Subject: | SGP/EBBR/E12- EBBR Frozen Wind Speed |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | Wind speed cups were frozen during the indicated time periods. All 5, 15, and 30 minute data values indicated are incorrect for the periods listed. |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/1998 | 0330 | 01/08/1998 | 1940 |
Subject: | SGP/EBBR/E20- EBBR Frozen Wind Speed |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | Wind speed cups were frozen during the indicated time periods. All 5, 15, and 30 minute data values indicated are incorrect for the periods listed. |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/04/1998 | 1300 | 01/15/1998 | 1715 |
Subject: | SGP/EBBR/E12 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown) |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | The EBBR AEM stopped exchanging because of icing at during this time period. The calculations of Bowen ratio, latent heat flux, and sensible heat flux are incorrect for the time period indicated. The other measurements listed are also incorrect for those times: Note: Mentor supplied the end date/time for this DQR after submittal |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/1998 | 1100 | 01/14/1998 | 1545 |
Subject: | SGP/EBBR/E20 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown) |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | The EBBR AEM stopped exchanging because of icing at during this time period. The calculations of Bowen ratio, latent heat flux, and sensible heat flux are incorrect for the time period indicated. The other measurements listed are also incorrect for those times: Note: Mentor supplied the end date/time to this DQR after submission. |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/1997 | 1700 | 12/31/1997 | 1615 |
Subject: | SGP/EBBR/E12 - EBBR Net Radiometer Domes Pierced, Water Inside - Data Affected |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | The upper dome of the EBBR net radiometers was punctured. After the puncture, water collected in the top and/or bottom dome. The water was removed and the dome was replaced during PM visits. In some cases, the puncture and water resulted in incorrect data. Comparison with net radiation values from surrounding EBBR sites and the SIRS is neccesary to determine if the EBBR net radiation data are correct or incorrect. It is often difficult to tell from the data when the punctures occurred, but they would have existed for no more than 2 weeks, since the domes are checked during each two-weekly PM visit. Incorrect net radiation data results in the latent heat flux and sensible heat flux also being incorrect. |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/27/1997 | 0530 | 12/18/1997 | 1805 |
Subject: | SGP/EBBR/E12 - AEM Failure and Replacement |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | The E12 AEM did not exchange for most of the period above, yielding small negative home signals. The AEM was replaced on 18 December by site operations personnel. All 30 minute e, h, and bowen data are incorrect for the times when the home signal is incorrect, and the temperature, relative humidity, and vapor pressures do not represent properly switched values. |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/28/1997 | 1600 | 02/04/1998 | 2230 |
Subject: | SGP/EBBR/E7 - Right T/RH Probe Temperature Incorrect |
DataStreams: | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.00, sgp5ebbrE7.a0 |
Description: | The temperature portion of the right T/RH probe was reporting too high for the period. The following fields are incorrect: 5 minute: thum_top, thum_bot, vp_top, vp_bot 15 minute: rr_thum-r 30 minute: thum_top, thum_bot, vp_top, vp_bot, e, h, bowen |
Measurements: | sgp5ebbrE7.00:
sgp15ebbrE7.a1:
sgp30ebbrE7.a1:
sgp5ebbrE7.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/13/1998 | 0330 | 01/15/1998 | 1630 |
Subject: | SGP/EBBR/E20 - Wind Speed Sensor Frozen |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.00, sgp5ebbrE20.a0 |
Description: | The wind speed sensor was frozen during the period. Data values that were incorrect are: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp5ebbrE20.00:
sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/14/1998 | 0430 | 01/14/1998 | 1830 |
Subject: | SGP/EBBR/E7 - Wind Speed Sensor Frozen |
DataStreams: | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
Description: | The wind speed sensor was frozen stalled during this period. Data values that were affected are: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp15ebbrE7.a1:
sgp30ebbrE7.a1:
sgp5ebbrE7.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/10/1998 | 1430 | 02/11/1998 | 2100 |
Subject: | SGP/EBBR/E20 - Data Missing |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | Apparently, SIRS conversion caused a loss of data retrieval from the EBBR. |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/23/1997 | 1955 | 10/23/1997 | 2015 |
Subject: | SGP/EBBR/E12 - 3-Month Check |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
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 these periods 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 correct gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/23/1997 | 1355 | 10/23/1997 | 1420 |
Subject: | SGP/EBBR/E18 - 3 Month Check |
DataStreams: | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.a0 |
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 these periods 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 correct gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp5ebbrE18.a0:
sgp15ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/22/1997 | 1645 | 10/22/1997 | 1705 |
Subject: | SGP/EBBR/E20 - 3 Month Check |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
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 these periods 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 correct gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/16/1997 | 1528 | 10/16/1997 | 1602 |
Subject: | SGP/EBBR/E7 - 3-Month Check |
DataStreams: | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
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 these periods 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 correct gradients. Checks performed before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp15ebbrE7.a1:
sgp30ebbrE7.a1:
sgp5ebbrE7.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/07/1998 | 0130 | 05/21/1998 | 1830 |
Subject: | SGP/EBBR/E12 - Wind Direction Sensor Failure |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | The wind direction sensor failed, producing zero values. The cause is unknown. Data values affected are below: 5 minute: res_ws, wind_d, sigma_wd 15 minute: mv_wind_d 30 Minute: res_ws, wind_d, sigma_wd |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/21/1998 | 1402 | 05/21/1998 | 1430 |
Subject: | SGP/EBBR/E18 - Six Month Checks |
DataStreams: | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.a0 |
Description: | During EBBR 6 month checks (formally called 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 these periods 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 correct gradients. Checks performed just before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp5ebbrE18.a0:
sgp15ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/20/1998 | 1450 | 05/20/1998 | 1530 |
Subject: | SGP/EBBR/E20 - Six Month Checks |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | During EBBR 6 month checks (formally called 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 these periods 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 correct gradients. Checks performed just before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/12/1998 | 1940 | 05/12/1998 | 2037 |
Subject: | SGP/EBBR/E7 - Six-Month Checks |
DataStreams: | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
Description: | During EBBR 6 month checks (formally called 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 these periods 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 correct gradients. Checks performed just before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period above. |
Measurements: | sgp15ebbrE7.a1:
sgp30ebbrE7.a1:
sgp5ebbrE7.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/21/1998 | 1855 | 05/21/1998 | 1918 |
Subject: | SGP/EBBR/E12 - Six Month Checks |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | During EBBR 6 month checks (formally called 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 these periods 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 correct gradients. Checks performed just before or after the AEM is disabled also lead to some incorrect data. Incorrect 5, 15 minute and half hour data occurs for the period indicated. |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/10/1997 | 2000 | 06/18/1998 | 1420 |
Subject: | SGP/EBBR/E18 - Reprocess: E18 EBBR Net Radiometer Calibration |
DataStreams: | sgp30ebbrE18.a1, sgp5ebbrE18.a0 |
Description: | When the CR10 program was loaded in the storage module of the newly installed EBBR unit at E18 on 10 September 1997, an incorrect calibration for the net radiometer was present. The incorrect calibration had apparently been entered into the storage module by the vendor before the unit was shipped. The .DOC file showed the correct calibration; therefore, we did not suspect a problem until comparisons with radiometers at other sites nearby were performed. The program with the correct calibration was entered on 18 June 1998. The 15 minute mv_q values were not affected. The 5 and 30 minute q values during the period above need to be corrected; multiply positive q values by 0.684, multiply negative values by 0.811; Sensible (h) and Latent Heat (e) fluxes for the period need to be recalculated with the equations below. e = -(q + ave_shf)/(1 + bowen) h = -(e + ave_shf + q) |
Measurements: | sgp5ebbrE18.a0:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/03/1998 | 1115 | 07/15/1998 | 1930 |
Subject: | SGP/EBBR/E20 - Wind Speed Incorrect |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | On 3 July 1998 the cup anemometer lost a cup. Until the cup assembly was replaced by site ops personnel on 15 July 1998, wind speed and vector averaged wind speed data were incorrect. The values affected are listed below. 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/19/1998 | 2215 | 10/21/1998 | 1600 |
Subject: | SGP/EBBR/E20 - Incorrect Data - Cattle Vandalism |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | Cattle penetrated the electric fence and pulled the aspirator housings from the AEM. Thus T/RH/VP and sensible and latent heat fluxes are incorrect for the period (until 1540 GMT; LE and H through the 30 minute period ending at 1600 GMT) |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/28/1998 | 1559 | 10/28/1998 | 1600 |
Subject: | SGP/EBBR/E7 - Data Incorrect Because of Recompile |
DataStreams: | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
Description: | All data for the 5, 15, and 30 minute periods ending at 1600 GMT are incorrect or missing because the CR10 program was recompiled. |
Measurements: | sgp30ebbrE7.a1:
sgp15ebbrE7.a1:
sgp5ebbrE7.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/15/1998 | 0100 | 11/17/1998 | 2100 |
Subject: | SGP/EBBR/E18 - Water In Net Radiometer, Flux Data Incorrect |
DataStreams: | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.a0 |
Description: | Incorrect Net Radiation values resulted from water in the bottom dome. Thus incorrect sensible and latent heat fluxes resulted. Affected values are: 5 minute: q 15 minute: mv_q 30 minute: q, e, h |
Measurements: | sgp5ebbrE18.a0:
sgp15ebbrE18.a1:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1998 | 0245 | 12/22/1998 | 1630 |
Subject: | SGP/EBBR/E12 - Wind Direction Data Incorrect (revised) |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | The wind direction sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: res_ws, wind_d, sigma_wd 15 minute: mv_wind_d 30 minute: res_ws, wind_d, sigma_wd |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/22/1998 | 1005 | 12/22/1998 | 1600 |
Subject: | SGP/EBBR/E7 - Wind Direction Data Incorrect (revised) |
DataStreams: | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.00, sgp5ebbrE7.a0 |
Description: | The wind direction sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: res_ws, wind_d, sigma_wd 15 minute: mv_wind_d 30 minute: res_ws, wind_d, sigma_wd |
Measurements: | sgp5ebbrE7.00:
sgp15ebbrE7.a1:
sgp30ebbrE7.a1:
sgp5ebbrE7.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1998 | 1635 | 12/23/1998 | 2000 |
Subject: | SGP/EBBR/E18 - Wind Direction Data Incorrect (revised) |
DataStreams: | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
Description: | The wind direction sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: res_ws, wind_d, sigma_wd 15 minute: mv_wind_d 30 minute: res_ws, wind_d, sigma_wd |
Measurements: | sgp15ebbrE18.a1:
sgp5ebbrE18.a0:
sgp5ebbrE18.00:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1998 | 1435 | 12/23/1998 | 0200 |
Subject: | SGP/EBBR/E20 - Wind Direction Data Incorrect (revised) |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | The wind direction sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: res_ws, wind_d, sigma_wd 15 minute: mv_wind_d 30 minute: res_ws, wind_d, sigma_wd |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/1999 | 1005 | 01/08/1999 | 1730 |
Subject: | SGP/EBBR/E20 - Wind Direction Data Incorrect |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | The wind direction sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: res_ws, wind_d, sigma_wd 15 minute: mv_wind_d 30 minute: res_ws, wind_d, sigma_wd |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1998 | 1005 | 12/22/1998 | 2000 |
Subject: | SGP/EBBR - EBBR E18 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp5ebbrE18.a0:
sgp15ebbrE18.a1:
sgp5ebbrE18.00:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/02/1999 | 0805 | 01/02/1999 | 1800 |
Subject: | SGP/EBBR/E18 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp5ebbrE18.a0:
sgp15ebbrE18.a1:
sgp5ebbrE18.00:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/1999 | 1015 | 01/10/1999 | 1300 |
Subject: | SGP/EBBR/E18 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE18.a1, sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp5ebbrE18.a0:
sgp15ebbrE18.a1:
sgp5ebbrE18.00:
sgp30ebbrE18.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/1999 | 0545 | 01/09/1999 | 2200 |
Subject: | SGP/EBBR/E20 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/21/1998 | 0735 | 12/21/1998 | 2000 |
Subject: | SGP/EBBR/E20 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/20/1998 | 2335 | 12/22/1998 | 1630 |
01/01/1999 | 1700 | 01/03/1999 | 1130 |
01/07/1999 | 1805 | 01/09/1999 | 0330 |
Subject: | SGP/EBBR/E12 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/07/1999 | 1805 | 01/09/1999 | 0330 |
Subject: | SGP/EBBR - EBBR E12 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.00, sgp5ebbrE12.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp5ebbrE12.a0:
sgp5ebbrE12.00:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/1999 | 1505 | 01/03/1999 | 2100 |
Subject: | SGP/EBBR/E7 - EBBR E7 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp15ebbrE7.a1:
sgp30ebbrE7.a1:
sgp5ebbrE7.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/08/1999 | 1035 | 01/08/1999 | 2300 |
Subject: | SGP/EBBR/E7 - Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp15ebbrE7.a1:
sgp30ebbrE7.a1:
sgp5ebbrE7.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/1999 | 1700 | 01/03/1999 | 1130 |
Subject: | SGP/EBBR - EBBR E12 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.00, sgp5ebbrE12.a0 |
Description: | The wind speed sensor was iced stopped by freezing rain, resulting in the following values being incorrect: 5 minute: wind_s, res_ws 15 minute: wind_s 30 minute: wind_s, res_ws, |
Measurements: | sgp5ebbrE12.a0:
sgp5ebbrE12.00:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/28/1998 | 1600 | 12/28/1998 | 1630 |
Subject: | SGP/EBBR/E12 - Data Incorrect |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.00, sgp5ebbrE12.a0 |
Description: | Most of the data values for just this time (1630 GMT) for the 5, 15, and 30 minute periods are incorrect; this apparently was the result of PM activities. |
Measurements: | sgp5ebbrE12.a0:
sgp5ebbrE12.00:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/28/1998 | 1345 | 12/28/1998 | 1730 |
Subject: | SGP/EBBR/E12 - Temperature, RH, and Vapor Pressure Data Incorrect |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | The right aspirator housing fell off of the AEM around 1345 GMT, by looking at the data. The housing was put back into place later in the day during a PM visit. The following values were affected: 5 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot 15 minute: rr_thum_r, mv_hum_r, tair_r 30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot, vp_top, vp_bot, bowen, e, h |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/24/1998 | 1315 | 11/24/1998 | 1530 |
Subject: | SGP/EBBR/E12 - All Temperature Measurements Incorrect |
DataStreams: | sgp15ebbrE12.a1, sgp30ebbrE12.a1, sgp5ebbrE12.a0 |
Description: | Failure of the multiplexer connection for the reference temperature thermocouple in the control box or a problem with the Campbell CR10 bridge circuitry caused all air and soil temperature measurements to be incorrect. Therefore, the computed 30 minute bowen, e, and h were also incorrect. |
Measurements: | sgp5ebbrE12.a0:
sgp30ebbrE12.a1:
sgp15ebbrE12.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/25/1998 | 1735 | 12/29/1998 | 1630 |
Subject: | SGP/EBBR/E20 - Data Incorrect |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.00, sgp5ebbrE20.a0 |
Description: | Version 6 of the CR10 program was installed during this period instead of version 7 (the initial version 7 program did not work). The calibrations and coefficients in version 6 were incorrect; therefore all data during this period is of questionable quality and e and h are clearly incorrect. The correct version 7 program was installed on 29 Dec 1998. |
Measurements: | sgp5ebbrE20.00:
sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/13/1999 | 2150 | 02/10/1999 | 1640 |
Subject: | SGP/EBBR/E20 - Pressure Low |
DataStreams: | sgp15ebbrE20.a1, sgp30ebbrE20.a1, sgp5ebbrE20.a0 |
Description: | The pressure sensor values dropped several kPa on 13 January 1999 because of a sensor malfunction and remained that way until the sensor was replaced on 10 February 1999. Comparison of the pressure before and after the problem period shows that Bowen ratio was underestimated by approximately 6% during the period, resulting in a 6% overestimation of latent heat flux and a 6% underestimation of sensible heat flux. Adjustment of the flux data during the period by these amounts should be made by the data user. |
Measurements: | sgp30ebbrE20.a1:
sgp5ebbrE20.a0:
sgp15ebbrE20.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/08/1997 | 2030 | 06/17/1999 | 1600 |
Subject: | SGP/EBBR/E18 - Pressure Incorrect |
DataStreams: | sgp30ebbrE18.a1, sgp5ebbrE18.00, sgp5ebbrE18.a0 |
Description: | The pressure sensor was replaced at E18 EBBR without the replacement being noted by Site Ops and therefore without an indication of serial number and thus correct calibration. The serial number of the sensor was observed during a PM (after months of confusion concerning the thing) and a several month search for the calibration sheet at ANL, the CF, and the manufacturer ensued. The sheet was finally found and I confirmed that an incorrect offset was being used (the same as used for the previous sensor). This is an easy error to make as there are two models of pressure sensors (with different calibration ranges) being used in the EBBR systems. On June 17, 1999 the correct offset was entered into the CR10 and storage module programming. The pressure for the period should be increased by 6.757 kPa. The result of the error is that Bowen ratio was underestimated by 6.8% on average, Latent Heat Flux was overestimated by 3.6% on average, and Sensible Heat Flux was underestimated by 3.6% on average. The errors in the fluxes are smaller than the estimated 10% error in the Bowen ratio flux measurement technique and therefore the data does not need to be reprocessed. Anyone performing area averages of pressure or looking at the variation in pressure over the CART Site should adjust the E18 EBBR pressure values for this period using the offset error indicated above. |
Measurements: | sgp5ebbrE18.a0:
sgp5ebbrE18.00:
sgp30ebbrE18.a1:
|