DQR ID | Subject | Data Streams Affected |
---|
D000221.5 | SGP/EBBR - EBBR E15 Anemometer Cup Off, Wind Speed Incorrect | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D000225.2 | SGP/EBBR- EBBR E15 Air Temperatures Incorrect | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D940105.1 | Incorrect readings for pressure sensor | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D940105.4 | SGP/EBBR/E15 - Questionable data due to low voltage at E15 | sgp15ebbrE15.a0, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D941021.3 | | |
D941221.1 | SGP/EBBR/E26 - T/RH Check | sgp15ebbrE26.a1, sgp30ebbrE26.a1, sgp5ebbrE26.a0 |
D950126.4 | SGP/EBBR/E15 - Frozen Wind Speed Instrument | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D950626.20 | SGP/EBBR/E15 - Battery Voltage Drop, Storage Module Change | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D950626.3 | SGP/EBBR/E15 - Frozen Wind Speed Sensor | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D950816.3 | SGP/EBBR/E15 - AEM Home 15 Values High | sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D950908.1 | SGP/EBBR/E15 - AEM Not Exchanging | sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D950921.2 | SGP/EBBR/E15 - AEM Replaced | sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D951020.1 | SGP/EBBR/E9 - 3-month Check | sgp15ebbrE9.a1, sgp30ebbrE9.a1, sgp5ebbrE9.a0 |
D951116.1 | SGP/EBBR/E13 - AEM Exchange Stopped in Snow and Freezing Rain | sgp30ebbrE13.a1 |
D951220.5 | SGP/EBBR/E15 - Annual calibration changeout | sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D960104.4 | SGP/EBBR/E15 - Wind Speed Cups Frozen | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D960119.1 | SGP/EBBR/E15 - Reprocess: Soil Temperature Probe Malfunction | sgp15ebbrE15.a1, sgp30ebbrE15.a1 |
D960119.2 | SGP/EBBR/E15 - Battery Voltage Drop | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D960508.7 | SGP/EBBR/E15 - 3-month check | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D961122.19 | SGP/EBBR/E4 - EBBR 3 Month Checks - 10 EFs | sgp15ebbrE4.a1, sgp30ebbrE4.a1, sgp5ebbrE4.a0 |
D970330.2 | SGP/EBBR/E15 - Wind Speed Cups frozen | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D970703.3 | SGP/EBBR/E15 - Connections Affecting Home Signals | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D971021.1 | SGP/EBBR/E7 - EBBR Biannual Checks | sgp15ebbrE7.a1, sgp30ebbrE7.a1, sgp5ebbrE7.a0 |
D980117.4 | | |
D980117.5 | SGP/EBBR/E26 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown) | sgp15ebbrE26.a1, sgp30ebbrE26.a1, sgp5ebbrE26.a0 |
D980117.8 | SGP/EBBR/E2 - EBBR Net Radiometer Domes Pierced, Water Inside - Data Affected | sgp15ebbrE2.a1, sgp30ebbrE2.a1, sgp5ebbrE2.a0 |
D980410.9 | SGP/EBBR/E15 - Wind Speed Sensor Frozen | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.00, sgp5ebbrE15.a0 |
D980416.13 | SGP/EBBR/E15 - 3-Month Check | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D980513.4 | SGP/EBBR/E15 - Pressure Diurnal Fluctuations | sgp30ebbrE15.a1 |
D980513.5 | SGP/EBBR/E15 - Pressure Too High | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D980513.6 | SGP/EBBR/E15 - Left T/RH Probe Temperature Too Large | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D980529.11 | SGP/EBBR/E15 - Six Month Checks | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D981113.3 | SGP/EBBR/E15 - Aspirator loosened from AEM mount | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D990127.26 | SGP/EBBR/E15 - Wind Direction Data Incorrect (revised) | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
D990127.44 | SGP/EBBR/E15 - Wind Speed Data Incorrect | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.00, sgp5ebbrE15.a0 |
D990127.45 | SGP/EBBR - EBBR E15 Wind Speed Data Incorrect | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.00, sgp5ebbrE15.a0 |
D990127.46 | SGP/EBBR - EBBR E15 Wind Speed Data Incorrect | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.00, sgp5ebbrE15.a0 |
D990311.1 | SGP/EBBR/E15 - Temperatures Incorrect | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0 |
Subject: | Incorrect readings for pressure sensor |
DataStreams: | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0
|
Description: | ARM PROBLEM IDENTIFICATION FORM (PIF)
PIF No. P940105.1
Subject: SGP/Ebbr - Incorrect readings for pressure sensor at E15
Submitted By: David R. Cook
Organization: Argonne National Laboratory
Date Submitted: December 13, 1993
How may we contact you?
e-mail: cook@anler.er.anl.gov
phone: (708) 252-5840
FAX: (708) 252-9792
Submitter's Priority: 3
[Critical-1 Very Important-2 Important-3 Inconvenient-4 Interesting-5]
Where was this Problem Identified: DA
[Site Data System-SDS Experiment Center-EC]
[Archive-A At Field Instrument-FI ]
[During Data Analyis-DA Other- List Location]
Does this PIF result in a Software Change Request? No
Where: [ SDS, EC, or A ]
Type: [Development-1 Problem-2 Enhancement-3]
List Programs/Documents Affected:
Configuration Identification:
Does problem impact data values or cause data loss? Data values.
which platform(s): EBBR, E15, Ringwood, OK
Specify (or estimate) begin and end dates
Begin Date 7/11/93
End Date 12/01/93 Time 1830 GMT
Apparent cause of data loss, if known:
SUGGESTED CAUSES: Calibration Drift.
[human error, component failure, temperature, lightning ]
[foreign matter, power loss, software failure, ]
[communications failure, modification difficulites, specify other]
Problem Description/Change Description.
o For Instrument Problems ONLY,
Identify MODE of Operation: Normal
o Give a brief explanation with details, attach examples and any supporting
information. This should include a description of analysis leading to
identification of problem and, if known, recommended action.
Beginning July 11, 1993, the atmospheric pressure sensor at the E15
EBBR began indicating approximately 0.2 KPa lower than the colocated SMOS.
Between July 31 and August 22, 1993 the difference increased to between
0.25 and 0.30 KPa. After August 22, the difference increased to 0.3 to
0.35 KPa and remained that way until December 1, 1993. A comparison of the
EBBR pressure sensor with the portable standard on December 1, 1993
indicated that the EBBR sensor was 0.04 KPa higher than the standard; this
is excellent agreement considering that the uncertainty of the EBBR sensor
calibration is 0.15 KPa. The consistent bias in EBBR pressure between July 11
and December 1 can be easily detected in comparisons with SMOS pressure data.
No EBBR data other than pressure was affected by the pressure problem;
calculations of specific heat at constant pressure (which includes the term
1/(p-vp)) times other terms (including p-.378*vp) result in no error to the
third decimal point at least in the resulting Bowen Ratio. For example;
assume a common vapor pressure (vp) of 2.0 kPa, a common atmospheric pressure
of 97.0 kPa, and a corrupted atmospheric pressure of 96.65 kPa at the extreme.
Uncorrupted Corrupted
(97.0-.378*2.0)/(97.0-2.0) = 1.0131 (96.65-.378*2.0)/(96.65-2.0) = 1.0131
1.0131/1.0131 = 1.0000 There is no effect on the Bowen Ratio as a
result of the corruption.
Therefore, no correction to the quantities calculated using pressure is
needed. |
Measurements: | sgp5ebbrE15.a0: - bottom air temperature(tair_bot)
- base time(base_time)
- Home signal(home)
- lon(lon)
- top vapor pressure(vp_top)
- Bottom humidity(hum_bot)
- Retrieved pressure profile(pres)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Time offset of tweaks from base_time(time_offset)
- wind direction (relative to true north)(wind_d)
- Reference Thermistor Temperature(tref)
- lat(lat)
- top air temperature(tair_top)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- net radiation(q)
- bottom vapor pressure(vp_bot)
- Temperature of bottom humidity sensor chamber(thum_bot)
- Dummy altitude for Zeb(alt)
- vector wind speed(res_ws)
- Top humidity(hum_top)
sgp30ebbrE15.a1: - net radiation(q)
- 0-5 cm integrated soil temperature, site 2(ts1)
- 0-5 cm change in soil heat storage with time, site 5(ces5)
- Soil heat capacity 4(cs4)
- volumetric soil moisture, site 1(sm1)
- Soil heat capacity 5(cs5)
- top vapor pressure(vp_top)
- average surface soil heat flow(ave_shf)
- 0-5 cm integrated soil temperature, site 5(ts5)
- Exchange mechanism position indicator (0 to 15 min)(home_15)
- volumetric soil moisture, site 3(sm3)
- soil heat flow, site 2(g2)
- 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
- Temperature of bottom humidity sensor chamber(thum_bot)
- soil heat flow, site 1(g1)
- volumetric soil moisture, site 2(sm2)
- Temperature of the top humidity chamber(thum_top)
- Reference Thermistor Temperature(tref)
- scalar wind speed(wind_s)
- 5 cm soil heat flow, site 5(shf5)
- Dummy altitude for Zeb(alt)
- volumetric soil moisture, site 4(sm4)
- volumetric soil moisture, site 5(sm5)
- 0-5 cm change in soil heat storage with time, site 4(ces4)
- 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- wind direction (relative to true north)(wind_d)
- soil heat flow, site 3(g3)
- 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
- latent heat flux(e)
- soil heat flow, site 4(g4)
- lat(lat)
- 5 cm soil heat flow, site 4(shf4)
- 5 cm soil heat flow, site 2(shf2)
- 0-5 cm change in soil heat storage with time, site 2(ces2)
- top air temperature(tair_top)
- 0-5 cm change in soil heat storage with time, site 3(ces3)
- Top humidity(hum_top)
- vector wind speed(res_ws)
- ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
- 5 cm soil heat flow, site 1(shf1)
- 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
- 0-5 cm change in soil heat storage with time, site 2(ces1)
- Soil heat capacity 1(cs1)
- h(h)
- Retrieved pressure profile(pres)
- soil heat flow, site 5(g5)
- bottom air temperature(tair_bot)
- Soil heat capacity 3(cs3)
- bottom vapor pressure(vp_bot)
- Exchange mechanism position indicator (15 to 30 min)(home_30)
- base time(base_time)
- 0-5 cm integrated soil temperature, site 3(ts3)
- Time offset of tweaks from base_time(time_offset)
- lon(lon)
- Soil heat capacity 2(cs2)
- 0-5 cm integrated soil temperature, site 4(ts4)
- 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
- 0-5 cm integrated soil temperature, site 2(ts2)
- 5 cm soil heat flow, site 3(shf3)
- Bottom humidity(hum_bot)
sgp15ebbrE15.a1: - scalar wind speed(wind_s)
- Soil temperature 3(rr_ts3)
- Battery(bat)
- Soil temperature 4(rr_ts4)
- Soil moisture 5(r_sm5)
- Wind direction (relative to true north)(mv_wind_d)
- Soil moisture 1(r_sm1)
- Soil moisture 3(r_sm3)
- Soil temperature 5(rr_ts5)
- Soil moisture 2(r_sm2)
- Atmospheric pressure(mv_pres)
- Home signal(mv_home)
- Temperature of right humidity sensor chamber(rr_thum_r)
- Temperature of left humidity sensor chamber(rr_thum_l)
- Signature(signature)
- Right air temperature(tair_r)
- Soil temperature 1(rr_ts1)
- Soil heat flow 4(mv_hft4)
- Left relative humidity(mv_hum_l)
- Soil temperature 2(rr_ts2)
- Reference temperature(rr_tref)
- Left air temperature(tair_l)
- base time(base_time)
- Soil heat flow 1(mv_hft1)
- Soil heat flow 3(mv_hft3)
- Net radiation(mv_q)
- Soil heat flow 5(mv_hft5)
- Dummy altitude for Zeb(alt)
- lon(lon)
- Time offset of tweaks from base_time(time_offset)
- Soil moisture 4(r_sm4)
- Right relative humidity(mv_hum_r)
- Soil heat flow 2(mv_hft2)
- lat(lat)
|
Subject: | SGP/EBBR/E15 - Questionable data due to low voltage at E15 |
DataStreams: | sgp15ebbrE15.a0, sgp30ebbrE15.a1, sgp5ebbrE15.a0
|
Description: | On November 11, 1993 at 0300 GMT the voltage level of the battery for the
EBBR at Ringwood (E15) dropped to too low a level for most of the
sensors to perform properly. By 0700 GMT virtually all sensors were not
indicating properly. This condition continued through 1830 GMT on November
15, 1993. No data from this EBBR should be considered valid during the
period indicated, since the quality of data from all sensors is
questionable. |
Measurements: | sgp15ebbrE15.a0: - Soil temperature 5(rr_ts5)
- Signature(signature)
- scalar wind speed(wind_s)
- lon(lon)
- Atmospheric pressure(mv_pres)
- Soil temperature 3(rr_ts3)
- Dummy altitude for Zeb(alt)
- Soil heat flow 4(mv_hft4)
- lat(lat)
- Soil moisture 5(rr_sm5)
- Soil temperature 2(rr_ts2)
- Temperature of right humidity sensor chamber(rr_thum_r)
- Time offset of tweaks from base_time(time_offset)
- Right relative humidity(mv_hum_r)
- Soil moisture 1(rr_sm1)
- Soil temperature 1(rr_ts1)
- Reference temperature(rr_tret)
- Net radiation(mv_q)
- Soil moisture 2(rr_sm2)
- Right air temperature(tair_r)
- Temperature of left humidity sensor chamber(rr_thum_l)
- Soil heat flow 1(mv_hft1)
- Soil heat flow 2(mv_hft2)
- Left relative humidity(mv_hum_l)
- base time(base_time)
- Home signal(mv_home)
- Wind direction (relative to true north)(mv_wind_d)
- Soil heat flow 3(mv_hft3)
- Soil temperature 4(rr_ts4)
- Soil heat flow 5(mv_hft5)
- Left air temperature(tair_l)
- Soil moisture 3(rr_sm3)
- Soil moisture 4(rr_sm4)
- Battery(bat)
sgp5ebbrE15.a0: - bottom air temperature(tair_bot)
- base time(base_time)
- Home signal(home)
- lon(lon)
- top vapor pressure(vp_top)
- Bottom humidity(hum_bot)
- Retrieved pressure profile(pres)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Time offset of tweaks from base_time(time_offset)
- wind direction (relative to true north)(wind_d)
- Reference Thermistor Temperature(tref)
- lat(lat)
- top air temperature(tair_top)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- net radiation(q)
- bottom vapor pressure(vp_bot)
- Temperature of bottom humidity sensor chamber(thum_bot)
- Dummy altitude for Zeb(alt)
- vector wind speed(res_ws)
- Top humidity(hum_top)
sgp30ebbrE15.a1: - net radiation(q)
- 0-5 cm integrated soil temperature, site 2(ts1)
- 0-5 cm change in soil heat storage with time, site 5(ces5)
- Soil heat capacity 4(cs4)
- volumetric soil moisture, site 1(sm1)
- Soil heat capacity 5(cs5)
- top vapor pressure(vp_top)
- average surface soil heat flow(ave_shf)
- 0-5 cm integrated soil temperature, site 5(ts5)
- Exchange mechanism position indicator (0 to 15 min)(home_15)
- volumetric soil moisture, site 3(sm3)
- soil heat flow, site 2(g2)
- 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
- Temperature of bottom humidity sensor chamber(thum_bot)
- soil heat flow, site 1(g1)
- volumetric soil moisture, site 2(sm2)
- Temperature of the top humidity chamber(thum_top)
- Reference Thermistor Temperature(tref)
- scalar wind speed(wind_s)
- 5 cm soil heat flow, site 5(shf5)
- Dummy altitude for Zeb(alt)
- volumetric soil moisture, site 4(sm4)
- volumetric soil moisture, site 5(sm5)
- 0-5 cm change in soil heat storage with time, site 4(ces4)
- 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- wind direction (relative to true north)(wind_d)
- soil heat flow, site 3(g3)
- 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
- latent heat flux(e)
- soil heat flow, site 4(g4)
- lat(lat)
- 5 cm soil heat flow, site 4(shf4)
- 5 cm soil heat flow, site 2(shf2)
- 0-5 cm change in soil heat storage with time, site 2(ces2)
- top air temperature(tair_top)
- 0-5 cm change in soil heat storage with time, site 3(ces3)
- Top humidity(hum_top)
- vector wind speed(res_ws)
- ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
- 5 cm soil heat flow, site 1(shf1)
- 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
- 0-5 cm change in soil heat storage with time, site 2(ces1)
- Soil heat capacity 1(cs1)
- h(h)
- Retrieved pressure profile(pres)
- soil heat flow, site 5(g5)
- bottom air temperature(tair_bot)
- Soil heat capacity 3(cs3)
- bottom vapor pressure(vp_bot)
- Exchange mechanism position indicator (15 to 30 min)(home_30)
- base time(base_time)
- 0-5 cm integrated soil temperature, site 3(ts3)
- Time offset of tweaks from base_time(time_offset)
- lon(lon)
- Soil heat capacity 2(cs2)
- 0-5 cm integrated soil temperature, site 4(ts4)
- 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
- 0-5 cm integrated soil temperature, site 2(ts2)
- 5 cm soil heat flow, site 3(shf3)
- Bottom humidity(hum_bot)
|
Subject: | SGP/EBBR/E26 - T/RH Check |
DataStreams: | sgp15ebbrE26.a1, sgp30ebbrE26.a1, sgp5ebbrE26.a0
|
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: 1615, 1620, 1625, 1630, 1635, 1640, 1645, 1650, 1655,
1700, 1705, 1710, 1715, 1720, 1725, 1730, 1735
15 minute: 1615, 1630, 1645, 1700, 1715, 1730, 1745
30 minute: 1630, 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: | sgp15ebbrE26.a1: - Temperature of right humidity sensor chamber(rr_thum_r)
- Left air temperature(tair_l)
- Temperature of left humidity sensor chamber(rr_thum_l)
- Right relative humidity(mv_hum_r)
- Left relative humidity(mv_hum_l)
- Right air temperature(tair_r)
sgp5ebbrE26.a0: - bottom air temperature(tair_bot)
- top air temperature(tair_top)
- Bottom humidity(hum_bot)
- Temperature of bottom humidity sensor chamber(thum_bot)
- Temperature of the top humidity chamber(thum_top)
- top vapor pressure(vp_top)
- bottom vapor pressure(vp_bot)
- Top humidity(hum_top)
sgp30ebbrE26.a1: - ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
- top vapor pressure(vp_top)
- top air temperature(tair_top)
- Top humidity(hum_top)
- Temperature of the top humidity chamber(thum_top)
- Bottom humidity(hum_bot)
- bottom vapor pressure(vp_bot)
- Temperature of bottom humidity sensor chamber(thum_bot)
- h(h)
- bottom air temperature(tair_bot)
- latent heat flux(e)
|
Subject: | SGP/EBBR/E15 - Battery Voltage Drop, Storage Module Change |
DataStreams: | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0
|
Description: | For a short period on June 6, 1995 at E15, Ringwood, OK, two events
resulted in a loss of data: replacement of the storage module and a low
battery condition. The low battery condition apparently affected only the
1815 GMT data output. All data during this period is missing (1645-1800
GMT) of incorrect (1815-1830). |
Measurements: | sgp5ebbrE15.a0: - bottom air temperature(tair_bot)
- base time(base_time)
- Home signal(home)
- lon(lon)
- top vapor pressure(vp_top)
- Bottom humidity(hum_bot)
- Retrieved pressure profile(pres)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Time offset of tweaks from base_time(time_offset)
- wind direction (relative to true north)(wind_d)
- Reference Thermistor Temperature(tref)
- lat(lat)
- top air temperature(tair_top)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- net radiation(q)
- bottom vapor pressure(vp_bot)
- Temperature of bottom humidity sensor chamber(thum_bot)
- Dummy altitude for Zeb(alt)
- vector wind speed(res_ws)
- Top humidity(hum_top)
sgp30ebbrE15.a1: - net radiation(q)
- 0-5 cm integrated soil temperature, site 2(ts1)
- 0-5 cm change in soil heat storage with time, site 5(ces5)
- Soil heat capacity 4(cs4)
- volumetric soil moisture, site 1(sm1)
- Soil heat capacity 5(cs5)
- top vapor pressure(vp_top)
- average surface soil heat flow(ave_shf)
- 0-5 cm integrated soil temperature, site 5(ts5)
- Exchange mechanism position indicator (0 to 15 min)(home_15)
- volumetric soil moisture, site 3(sm3)
- soil heat flow, site 2(g2)
- 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
- Temperature of bottom humidity sensor chamber(thum_bot)
- soil heat flow, site 1(g1)
- volumetric soil moisture, site 2(sm2)
- Temperature of the top humidity chamber(thum_top)
- Reference Thermistor Temperature(tref)
- scalar wind speed(wind_s)
- 5 cm soil heat flow, site 5(shf5)
- Dummy altitude for Zeb(alt)
- volumetric soil moisture, site 4(sm4)
- volumetric soil moisture, site 5(sm5)
- 0-5 cm change in soil heat storage with time, site 4(ces4)
- 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- wind direction (relative to true north)(wind_d)
- soil heat flow, site 3(g3)
- 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
- latent heat flux(e)
- soil heat flow, site 4(g4)
- lat(lat)
- 5 cm soil heat flow, site 4(shf4)
- 5 cm soil heat flow, site 2(shf2)
- 0-5 cm change in soil heat storage with time, site 2(ces2)
- top air temperature(tair_top)
- 0-5 cm change in soil heat storage with time, site 3(ces3)
- Top humidity(hum_top)
- vector wind speed(res_ws)
- ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
- 5 cm soil heat flow, site 1(shf1)
- 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
- 0-5 cm change in soil heat storage with time, site 2(ces1)
- Soil heat capacity 1(cs1)
- h(h)
- Retrieved pressure profile(pres)
- soil heat flow, site 5(g5)
- bottom air temperature(tair_bot)
- Soil heat capacity 3(cs3)
- bottom vapor pressure(vp_bot)
- Exchange mechanism position indicator (15 to 30 min)(home_30)
- base time(base_time)
- 0-5 cm integrated soil temperature, site 3(ts3)
- Time offset of tweaks from base_time(time_offset)
- lon(lon)
- Soil heat capacity 2(cs2)
- 0-5 cm integrated soil temperature, site 4(ts4)
- 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
- 0-5 cm integrated soil temperature, site 2(ts2)
- 5 cm soil heat flow, site 3(shf3)
- Bottom humidity(hum_bot)
sgp15ebbrE15.a1: - scalar wind speed(wind_s)
- Soil temperature 3(rr_ts3)
- Battery(bat)
- Soil temperature 4(rr_ts4)
- Soil moisture 5(r_sm5)
- Wind direction (relative to true north)(mv_wind_d)
- Soil moisture 1(r_sm1)
- Soil moisture 3(r_sm3)
- Soil temperature 5(rr_ts5)
- Soil moisture 2(r_sm2)
- Atmospheric pressure(mv_pres)
- Home signal(mv_home)
- Temperature of right humidity sensor chamber(rr_thum_r)
- Temperature of left humidity sensor chamber(rr_thum_l)
- Signature(signature)
- Right air temperature(tair_r)
- Soil temperature 1(rr_ts1)
- Soil heat flow 4(mv_hft4)
- Left relative humidity(mv_hum_l)
- Soil temperature 2(rr_ts2)
- Reference temperature(rr_tref)
- Left air temperature(tair_l)
- base time(base_time)
- Soil heat flow 1(mv_hft1)
- Soil heat flow 3(mv_hft3)
- Net radiation(mv_q)
- Soil heat flow 5(mv_hft5)
- Dummy altitude for Zeb(alt)
- lon(lon)
- Time offset of tweaks from base_time(time_offset)
- Soil moisture 4(r_sm4)
- Right relative humidity(mv_hum_r)
- Soil heat flow 2(mv_hft2)
- lat(lat)
|
Subject: | SGP/EBBR/E15 - AEM Home 15 Values High |
DataStreams: | sgp30ebbrE15.a1, sgp5ebbrE15.a0
|
Description: | Beginning on June 23, 1995, the home 15 value indicated greater than 70 at
times. This indicates that the home 15 and 30 outputs are somehow being
electronically added in the AEM. Home 15 values above 70 cause a data quality
message to be output in the site operations log as the stated acceptable range
for home 15 is 35 to 70. However, no data is incorrect as a result of this
condition.
No replacement AEM is available and site operations was not able to
diagnose the problem. At present, data quality is not jeopardized.
I will submit another DQR or addendum when successful repair or replacement of
the AEM is accomplished. |
Measurements: | sgp5ebbrE15.a0: - Reference Thermistor Temperature(tref)
- bottom air temperature(tair_bot)
- lat(lat)
- top air temperature(tair_top)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- base time(base_time)
- net radiation(q)
- bottom vapor pressure(vp_bot)
- Home signal(home)
- lon(lon)
- top vapor pressure(vp_top)
- Temperature of bottom humidity sensor chamber(thum_bot)
- Bottom humidity(hum_bot)
- Dummy altitude for Zeb(alt)
- vector wind speed(res_ws)
- Retrieved pressure profile(pres)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Time offset of tweaks from base_time(time_offset)
- wind direction (relative to true north)(wind_d)
- Top humidity(hum_top)
sgp30ebbrE15.a1: - net radiation(q)
- 0-5 cm integrated soil temperature, site 2(ts1)
- 5 cm soil heat flow, site 4(shf4)
- 0-5 cm change in soil heat storage with time, site 5(ces5)
- 5 cm soil heat flow, site 2(shf2)
- 0-5 cm change in soil heat storage with time, site 2(ces2)
- Soil heat capacity 4(cs4)
- top air temperature(tair_top)
- 0-5 cm change in soil heat storage with time, site 3(ces3)
- volumetric soil moisture, site 1(sm1)
- Soil heat capacity 5(cs5)
- Top humidity(hum_top)
- top vapor pressure(vp_top)
- average surface soil heat flow(ave_shf)
- vector wind speed(res_ws)
- ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
- 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
- 5 cm soil heat flow, site 1(shf1)
- 0-5 cm integrated soil temperature, site 5(ts5)
- 0-5 cm change in soil heat storage with time, site 2(ces1)
- Exchange mechanism position indicator (0 to 15 min)(home_15)
- volumetric soil moisture, site 3(sm3)
- Soil heat capacity 1(cs1)
- soil heat flow, site 2(g2)
- 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
- Temperature of bottom humidity sensor chamber(thum_bot)
- soil heat flow, site 1(g1)
- h(h)
- Retrieved pressure profile(pres)
- soil heat flow, site 5(g5)
- bottom air temperature(tair_bot)
- volumetric soil moisture, site 2(sm2)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- Reference Thermistor Temperature(tref)
- Soil heat capacity 3(cs3)
- 5 cm soil heat flow, site 5(shf5)
- Exchange mechanism position indicator (15 to 30 min)(home_30)
- bottom vapor pressure(vp_bot)
- Dummy altitude for Zeb(alt)
- volumetric soil moisture, site 4(sm4)
- base time(base_time)
- 0-5 cm integrated soil temperature, site 3(ts3)
- Time offset of tweaks from base_time(time_offset)
- volumetric soil moisture, site 5(sm5)
- 0-5 cm change in soil heat storage with time, site 4(ces4)
- 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
- lon(lon)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Soil heat capacity 2(cs2)
- wind direction (relative to true north)(wind_d)
- 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
- soil heat flow, site 3(g3)
- 0-5 cm integrated soil temperature, site 4(ts4)
- 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
- latent heat flux(e)
- 0-5 cm integrated soil temperature, site 2(ts2)
- lat(lat)
- soil heat flow, site 4(g4)
- Bottom humidity(hum_bot)
- 5 cm soil heat flow, site 3(shf3)
|
Subject: | SGP/EBBR/E15 - Annual calibration changeout |
DataStreams: | sgp30ebbrE15.a1, sgp5ebbrE15.a0
|
Description: | On December 14, 1995 the changeout for annual calibration occurred at E15,
Ringwood, OK. Between 1650 and 2050 GMT no data was remotely collected.
Furthermore, 5 minute data for 2050 GMT is incorrect, 15 minute data for
2045 GMT is incorrect, and 30 minute data for 2100 GMT is incorrect.
A rather large jump in soil moisture appears in the data after the
installation was completed (the bags holding the probes were soaked with water
before installation). Soil measurements indicated greater than ambient
soil moisture until a rain on late 18 December saturated the soil; after this
period the probes reflected actual soil moisture conditions. The larger than
normal soil moistures have little impact on the small soil heat flux during
this time of year, and thus no significant affect on computed sensible and
latent heat fluxes. |
Measurements: | sgp5ebbrE15.a0: - Reference Thermistor Temperature(tref)
- bottom air temperature(tair_bot)
- lat(lat)
- top air temperature(tair_top)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- base time(base_time)
- net radiation(q)
- bottom vapor pressure(vp_bot)
- Home signal(home)
- lon(lon)
- top vapor pressure(vp_top)
- Temperature of bottom humidity sensor chamber(thum_bot)
- Bottom humidity(hum_bot)
- Dummy altitude for Zeb(alt)
- vector wind speed(res_ws)
- Retrieved pressure profile(pres)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Time offset of tweaks from base_time(time_offset)
- wind direction (relative to true north)(wind_d)
- Top humidity(hum_top)
sgp30ebbrE15.a1: - net radiation(q)
- 0-5 cm integrated soil temperature, site 2(ts1)
- 5 cm soil heat flow, site 4(shf4)
- 0-5 cm change in soil heat storage with time, site 5(ces5)
- 5 cm soil heat flow, site 2(shf2)
- 0-5 cm change in soil heat storage with time, site 2(ces2)
- Soil heat capacity 4(cs4)
- top air temperature(tair_top)
- 0-5 cm change in soil heat storage with time, site 3(ces3)
- volumetric soil moisture, site 1(sm1)
- Soil heat capacity 5(cs5)
- Top humidity(hum_top)
- top vapor pressure(vp_top)
- average surface soil heat flow(ave_shf)
- vector wind speed(res_ws)
- ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
- 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
- 5 cm soil heat flow, site 1(shf1)
- 0-5 cm integrated soil temperature, site 5(ts5)
- 0-5 cm change in soil heat storage with time, site 2(ces1)
- Exchange mechanism position indicator (0 to 15 min)(home_15)
- volumetric soil moisture, site 3(sm3)
- Soil heat capacity 1(cs1)
- soil heat flow, site 2(g2)
- 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
- Temperature of bottom humidity sensor chamber(thum_bot)
- soil heat flow, site 1(g1)
- h(h)
- Retrieved pressure profile(pres)
- soil heat flow, site 5(g5)
- bottom air temperature(tair_bot)
- volumetric soil moisture, site 2(sm2)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- Reference Thermistor Temperature(tref)
- Soil heat capacity 3(cs3)
- 5 cm soil heat flow, site 5(shf5)
- Exchange mechanism position indicator (15 to 30 min)(home_30)
- bottom vapor pressure(vp_bot)
- Dummy altitude for Zeb(alt)
- volumetric soil moisture, site 4(sm4)
- base time(base_time)
- 0-5 cm integrated soil temperature, site 3(ts3)
- Time offset of tweaks from base_time(time_offset)
- volumetric soil moisture, site 5(sm5)
- 0-5 cm change in soil heat storage with time, site 4(ces4)
- 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
- lon(lon)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Soil heat capacity 2(cs2)
- wind direction (relative to true north)(wind_d)
- 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
- soil heat flow, site 3(g3)
- 0-5 cm integrated soil temperature, site 4(ts4)
- 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
- latent heat flux(e)
- 0-5 cm integrated soil temperature, site 2(ts2)
- lat(lat)
- soil heat flow, site 4(g4)
- Bottom humidity(hum_bot)
- 5 cm soil heat flow, site 3(shf3)
|
Subject: | SGP/EBBR/E15 - Battery Voltage Drop |
DataStreams: | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.a0
|
Description: | From the installation of the changeout unit at E15 on 15 December 1995, the
battery exhibited a slow decline in voltage. However, after a day of the
AEM not operating, site operations restarted the AEM on 20 December 1995 and
the battery condition declined more rapidly, such that the solar panel was not
able to keep the battery voltage up (greater than 11 V DC) for nighttime
conditions, even after a cloudless day. Battery voltage first dropped below 11
volts at 0635 GMT on 21 December. I requested that the solar panel voltage
regulator be tested. On 16 January 1996, site operations found that the
fuse in the solar panel voltage regulator was loose. After the fuse was
repositioned, the battery voltage increased almost immediately to 13.5
volts and has been good since.
All data for the periods above should be considered incorrect; many sensors
require at least 11 volts DC power and the performance of the CR10 data
logger can not be trusted at less than 11 volts. |
Measurements: | sgp5ebbrE15.a0: - bottom air temperature(tair_bot)
- base time(base_time)
- Home signal(home)
- lon(lon)
- top vapor pressure(vp_top)
- Bottom humidity(hum_bot)
- Retrieved pressure profile(pres)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Time offset of tweaks from base_time(time_offset)
- wind direction (relative to true north)(wind_d)
- Reference Thermistor Temperature(tref)
- lat(lat)
- top air temperature(tair_top)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- net radiation(q)
- bottom vapor pressure(vp_bot)
- Temperature of bottom humidity sensor chamber(thum_bot)
- Dummy altitude for Zeb(alt)
- vector wind speed(res_ws)
- Top humidity(hum_top)
sgp30ebbrE15.a1: - net radiation(q)
- 0-5 cm integrated soil temperature, site 2(ts1)
- 0-5 cm change in soil heat storage with time, site 5(ces5)
- Soil heat capacity 4(cs4)
- volumetric soil moisture, site 1(sm1)
- Soil heat capacity 5(cs5)
- top vapor pressure(vp_top)
- average surface soil heat flow(ave_shf)
- 0-5 cm integrated soil temperature, site 5(ts5)
- Exchange mechanism position indicator (0 to 15 min)(home_15)
- volumetric soil moisture, site 3(sm3)
- soil heat flow, site 2(g2)
- 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
- Temperature of bottom humidity sensor chamber(thum_bot)
- soil heat flow, site 1(g1)
- volumetric soil moisture, site 2(sm2)
- Temperature of the top humidity chamber(thum_top)
- Reference Thermistor Temperature(tref)
- scalar wind speed(wind_s)
- 5 cm soil heat flow, site 5(shf5)
- Dummy altitude for Zeb(alt)
- volumetric soil moisture, site 4(sm4)
- volumetric soil moisture, site 5(sm5)
- 0-5 cm change in soil heat storage with time, site 4(ces4)
- 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- wind direction (relative to true north)(wind_d)
- soil heat flow, site 3(g3)
- 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
- latent heat flux(e)
- soil heat flow, site 4(g4)
- lat(lat)
- 5 cm soil heat flow, site 4(shf4)
- 5 cm soil heat flow, site 2(shf2)
- 0-5 cm change in soil heat storage with time, site 2(ces2)
- top air temperature(tair_top)
- 0-5 cm change in soil heat storage with time, site 3(ces3)
- Top humidity(hum_top)
- vector wind speed(res_ws)
- ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
- 5 cm soil heat flow, site 1(shf1)
- 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
- 0-5 cm change in soil heat storage with time, site 2(ces1)
- Soil heat capacity 1(cs1)
- h(h)
- Retrieved pressure profile(pres)
- soil heat flow, site 5(g5)
- bottom air temperature(tair_bot)
- Soil heat capacity 3(cs3)
- bottom vapor pressure(vp_bot)
- Exchange mechanism position indicator (15 to 30 min)(home_30)
- base time(base_time)
- 0-5 cm integrated soil temperature, site 3(ts3)
- Time offset of tweaks from base_time(time_offset)
- lon(lon)
- Soil heat capacity 2(cs2)
- 0-5 cm integrated soil temperature, site 4(ts4)
- 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
- 0-5 cm integrated soil temperature, site 2(ts2)
- 5 cm soil heat flow, site 3(shf3)
- Bottom humidity(hum_bot)
sgp15ebbrE15.a1: - scalar wind speed(wind_s)
- Soil temperature 3(rr_ts3)
- Battery(bat)
- Soil temperature 4(rr_ts4)
- Soil moisture 5(r_sm5)
- Wind direction (relative to true north)(mv_wind_d)
- Soil moisture 1(r_sm1)
- Soil moisture 3(r_sm3)
- Soil temperature 5(rr_ts5)
- Soil moisture 2(r_sm2)
- Atmospheric pressure(mv_pres)
- Home signal(mv_home)
- Temperature of right humidity sensor chamber(rr_thum_r)
- Temperature of left humidity sensor chamber(rr_thum_l)
- Signature(signature)
- Right air temperature(tair_r)
- Soil temperature 1(rr_ts1)
- Soil heat flow 4(mv_hft4)
- Left relative humidity(mv_hum_l)
- Soil temperature 2(rr_ts2)
- Reference temperature(rr_tref)
- Left air temperature(tair_l)
- base time(base_time)
- Soil heat flow 1(mv_hft1)
- Soil heat flow 3(mv_hft3)
- Net radiation(mv_q)
- Soil heat flow 5(mv_hft5)
- Dummy altitude for Zeb(alt)
- lon(lon)
- Time offset of tweaks from base_time(time_offset)
- Soil moisture 4(r_sm4)
- Right relative humidity(mv_hum_r)
- Soil heat flow 2(mv_hft2)
- lat(lat)
|
Subject: | SGP/EBBR - EBBR E15 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.00, sgp5ebbrE15.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: | sgp5ebbrE15.00: - null(Raw data stream - documentation not supported)
sgp5ebbrE15.a0: - bottom air temperature(tair_bot)
- base time(base_time)
- Home signal(home)
- lon(lon)
- top vapor pressure(vp_top)
- Bottom humidity(hum_bot)
- Retrieved pressure profile(pres)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Time offset of tweaks from base_time(time_offset)
- wind direction (relative to true north)(wind_d)
- Reference Thermistor Temperature(tref)
- lat(lat)
- top air temperature(tair_top)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- net radiation(q)
- bottom vapor pressure(vp_bot)
- Temperature of bottom humidity sensor chamber(thum_bot)
- Dummy altitude for Zeb(alt)
- vector wind speed(res_ws)
- Top humidity(hum_top)
sgp30ebbrE15.a1: - net radiation(q)
- 0-5 cm integrated soil temperature, site 2(ts1)
- 0-5 cm change in soil heat storage with time, site 5(ces5)
- Soil heat capacity 4(cs4)
- volumetric soil moisture, site 1(sm1)
- Soil heat capacity 5(cs5)
- top vapor pressure(vp_top)
- average surface soil heat flow(ave_shf)
- 0-5 cm integrated soil temperature, site 5(ts5)
- Exchange mechanism position indicator (0 to 15 min)(home_15)
- volumetric soil moisture, site 3(sm3)
- soil heat flow, site 2(g2)
- 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
- Temperature of bottom humidity sensor chamber(thum_bot)
- soil heat flow, site 1(g1)
- volumetric soil moisture, site 2(sm2)
- Temperature of the top humidity chamber(thum_top)
- Reference Thermistor Temperature(tref)
- scalar wind speed(wind_s)
- 5 cm soil heat flow, site 5(shf5)
- Dummy altitude for Zeb(alt)
- volumetric soil moisture, site 4(sm4)
- volumetric soil moisture, site 5(sm5)
- 0-5 cm change in soil heat storage with time, site 4(ces4)
- 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- wind direction (relative to true north)(wind_d)
- soil heat flow, site 3(g3)
- 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
- latent heat flux(e)
- soil heat flow, site 4(g4)
- lat(lat)
- 5 cm soil heat flow, site 4(shf4)
- 5 cm soil heat flow, site 2(shf2)
- 0-5 cm change in soil heat storage with time, site 2(ces2)
- top air temperature(tair_top)
- 0-5 cm change in soil heat storage with time, site 3(ces3)
- Top humidity(hum_top)
- vector wind speed(res_ws)
- ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
- 5 cm soil heat flow, site 1(shf1)
- 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
- 0-5 cm change in soil heat storage with time, site 2(ces1)
- Soil heat capacity 1(cs1)
- h(h)
- Retrieved pressure profile(pres)
- soil heat flow, site 5(g5)
- bottom air temperature(tair_bot)
- Soil heat capacity 3(cs3)
- bottom vapor pressure(vp_bot)
- Exchange mechanism position indicator (15 to 30 min)(home_30)
- base time(base_time)
- 0-5 cm integrated soil temperature, site 3(ts3)
- Time offset of tweaks from base_time(time_offset)
- lon(lon)
- Soil heat capacity 2(cs2)
- 0-5 cm integrated soil temperature, site 4(ts4)
- 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
- 0-5 cm integrated soil temperature, site 2(ts2)
- 5 cm soil heat flow, site 3(shf3)
- Bottom humidity(hum_bot)
sgp15ebbrE15.a1: - scalar wind speed(wind_s)
- Soil temperature 3(rr_ts3)
- Battery(bat)
- Soil temperature 4(rr_ts4)
- Soil moisture 5(r_sm5)
- Wind direction (relative to true north)(mv_wind_d)
- Soil moisture 1(r_sm1)
- Soil moisture 3(r_sm3)
- Soil temperature 5(rr_ts5)
- Soil moisture 2(r_sm2)
- Atmospheric pressure(mv_pres)
- Home signal(mv_home)
- Temperature of right humidity sensor chamber(rr_thum_r)
- Temperature of left humidity sensor chamber(rr_thum_l)
- Signature(signature)
- Right air temperature(tair_r)
- Soil temperature 1(rr_ts1)
- Soil heat flow 4(mv_hft4)
- Left relative humidity(mv_hum_l)
- Soil temperature 2(rr_ts2)
- Reference temperature(rr_tref)
- Left air temperature(tair_l)
- base time(base_time)
- Soil heat flow 1(mv_hft1)
- Soil heat flow 3(mv_hft3)
- Net radiation(mv_q)
- Soil heat flow 5(mv_hft5)
- Dummy altitude for Zeb(alt)
- lon(lon)
- Time offset of tweaks from base_time(time_offset)
- Soil moisture 4(r_sm4)
- Right relative humidity(mv_hum_r)
- Soil heat flow 2(mv_hft2)
- lat(lat)
|
Subject: | SGP/EBBR - EBBR E15 Wind Speed Data Incorrect |
DataStreams: | sgp15ebbrE15.a1, sgp30ebbrE15.a1, sgp5ebbrE15.00, sgp5ebbrE15.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: | sgp5ebbrE15.00: - null(Raw data stream - documentation not supported)
sgp5ebbrE15.a0: - bottom air temperature(tair_bot)
- base time(base_time)
- Home signal(home)
- lon(lon)
- top vapor pressure(vp_top)
- Bottom humidity(hum_bot)
- Retrieved pressure profile(pres)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- Time offset of tweaks from base_time(time_offset)
- wind direction (relative to true north)(wind_d)
- Reference Thermistor Temperature(tref)
- lat(lat)
- top air temperature(tair_top)
- Temperature of the top humidity chamber(thum_top)
- scalar wind speed(wind_s)
- net radiation(q)
- bottom vapor pressure(vp_bot)
- Temperature of bottom humidity sensor chamber(thum_bot)
- Dummy altitude for Zeb(alt)
- vector wind speed(res_ws)
- Top humidity(hum_top)
sgp30ebbrE15.a1: - net radiation(q)
- 0-5 cm integrated soil temperature, site 2(ts1)
- 0-5 cm change in soil heat storage with time, site 5(ces5)
- Soil heat capacity 4(cs4)
- volumetric soil moisture, site 1(sm1)
- Soil heat capacity 5(cs5)
- top vapor pressure(vp_top)
- average surface soil heat flow(ave_shf)
- 0-5 cm integrated soil temperature, site 5(ts5)
- Exchange mechanism position indicator (0 to 15 min)(home_15)
- volumetric soil moisture, site 3(sm3)
- soil heat flow, site 2(g2)
- 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
- Temperature of bottom humidity sensor chamber(thum_bot)
- soil heat flow, site 1(g1)
- volumetric soil moisture, site 2(sm2)
- Temperature of the top humidity chamber(thum_top)
- Reference Thermistor Temperature(tref)
- scalar wind speed(wind_s)
- 5 cm soil heat flow, site 5(shf5)
- Dummy altitude for Zeb(alt)
- volumetric soil moisture, site 4(sm4)
- volumetric soil moisture, site 5(sm5)
- 0-5 cm change in soil heat storage with time, site 4(ces4)
- 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
- standard deviation of wind direction (sigma theta)(sigma_wd)
- wind direction (relative to true north)(wind_d)
- soil heat flow, site 3(g3)
- 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
- latent heat flux(e)
- soil heat flow, site 4(g4)
- lat(lat)
- 5 cm soil heat flow, site 4(shf4)
- 5 cm soil heat flow, site 2(shf2)
- 0-5 cm change in soil heat storage with time, site 2(ces2)
- top air temperature(tair_top)
- 0-5 cm change in soil heat storage with time, site 3(ces3)
- Top humidity(hum_top)
- vector wind speed(res_ws)
- ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
- 5 cm soil heat flow, site 1(shf1)
- 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
- 0-5 cm change in soil heat storage with time, site 2(ces1)
- Soil heat capacity 1(cs1)
- h(h)
- Retrieved pressure profile(pres)
- soil heat flow, site 5(g5)
- bottom air temperature(tair_bot)
- Soil heat capacity 3(cs3)
- bottom vapor pressure(vp_bot)
- Exchange mechanism position indicator (15 to 30 min)(home_30)
- base time(base_time)
- 0-5 cm integrated soil temperature, site 3(ts3)
- Time offset of tweaks from base_time(time_offset)
- lon(lon)
- Soil heat capacity 2(cs2)
- 0-5 cm integrated soil temperature, site 4(ts4)
- 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
- 0-5 cm integrated soil temperature, site 2(ts2)
- 5 cm soil heat flow, site 3(shf3)
- Bottom humidity(hum_bot)
sgp15ebbrE15.a1: - scalar wind speed(wind_s)
- Soil temperature 3(rr_ts3)
- Battery(bat)
- Soil temperature 4(rr_ts4)
- Soil moisture 5(r_sm5)
- Wind direction (relative to true north)(mv_wind_d)
- Soil moisture 1(r_sm1)
- Soil moisture 3(r_sm3)
- Soil temperature 5(rr_ts5)
- Soil moisture 2(r_sm2)
- Atmospheric pressure(mv_pres)
- Home signal(mv_home)
- Temperature of right humidity sensor chamber(rr_thum_r)
- Temperature of left humidity sensor chamber(rr_thum_l)
- Signature(signature)
- Right air temperature(tair_r)
- Soil temperature 1(rr_ts1)
- Soil heat flow 4(mv_hft4)
- Left relative humidity(mv_hum_l)
- Soil temperature 2(rr_ts2)
- Reference temperature(rr_tref)
- Left air temperature(tair_l)
- base time(base_time)
- Soil heat flow 1(mv_hft1)
- Soil heat flow 3(mv_hft3)
- Net radiation(mv_q)
- Soil heat flow 5(mv_hft5)
- Dummy altitude for Zeb(alt)
- lon(lon)
- Time offset of tweaks from base_time(time_offset)
- Soil moisture 4(r_sm4)
- Right relative humidity(mv_hum_r)
- Soil heat flow 2(mv_hft2)
- lat(lat)
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