SGP/EBBR/E20 - Reprocess: E20 Soil Probes #3 Cables Cut

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)

• latent heat flux(e)
• soil heat flow, site 3(g3)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Soil heat capacity 3(cs3)
• h(h)
• 5 cm soil heat flow, site 3(shf3)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• average surface soil heat flow(ave_shf)
• 0-5 cm integrated soil temperature, site 3(ts3)

• Soil temperature 3(rr_ts3)
• Soil moisture 3(r_sm3)
• Soil heat flow 3(mv_hft3)

SGP/EBBR/E12 - Wind Direction Sensor Malfunctions

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.

• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• vector wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E18 - Left RH Probe Temperature Incorrect

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.

• Temperature of left humidity sensor chamber(rr_thum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)

• Temperature of bottom humidity sensor chamber(thum_bot)
• Temperature of the top humidity chamber(thum_top)

SGP/EBBR/E7 - EBBR Frozen Wind Speed

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.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

SGP/EBBR/E12- EBBR Frozen Wind Speed

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.

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

• scalar wind speed(wind_s)

SGP/EBBR/E20- EBBR Frozen Wind Speed

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.

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E12 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown)

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

• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)

• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• h(h)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• top air temperature(tair_top)

• Left air temperature(tair_l)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Right air temperature(tair_r)
• Left relative humidity(mv_hum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right relative humidity(mv_hum_r)

SGP/EBBR/E20 - EBBR AEMs Not Exchanging (Iced Or Fuse Blown)

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.

• Bottom humidity(hum_bot)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• h(h)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• latent heat flux(e)
• bottom air temperature(tair_bot)

• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• bottom air temperature(tair_bot)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)

• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Left air temperature(tair_l)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)
• Temperature of left humidity sensor chamber(rr_thum_l)

SGP/EBBR/E12 - EBBR Net Radiometer Domes Pierced, Water Inside - Data Affected

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.

• net radiation(q)

• net radiation(q)
• latent heat flux(e)
• h(h)

• Net radiation(mv_q)

SGP/EBBR/E12 - AEM Failure and Replacement

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.

• Bottom humidity(hum_bot)
• Home signal(home)
• Top humidity(hum_top)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)

• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• h(h)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• top air temperature(tair_top)
• Exchange mechanism position indicator (0 to 15 min)(home_15)

• Home signal(mv_home)
• Left air temperature(tair_l)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Right air temperature(tair_r)
• Left relative humidity(mv_hum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right relative humidity(mv_hum_r)

SGP/EBBR/E7 - Right T/RH Probe Temperature Incorrect

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

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Temperature of right humidity sensor chamber(rr_thum_r)

• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• latent heat flux(e)
• top vapor pressure(vp_top)
• h(h)
• Temperature of the top humidity chamber(thum_top)

• Temperature of the top humidity chamber(thum_top)
• top vapor pressure(vp_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom vapor pressure(vp_bot)

SGP/EBBR/E20 - Wind Speed Sensor Frozen

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

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E7 - Wind Speed Sensor Frozen

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

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

SGP/EBBR/E20 - Data Missing

Apparently, SIRS conversion caused a loss of data retrieval from the EBBR.

• Bottom humidity(hum_bot)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• volumetric soil moisture, site 1(sm1)
• 5 cm soil heat flow, site 1(shf1)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• volumetric soil moisture, site 5(sm5)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• net radiation(q)
• 5 cm soil heat flow, site 2(shf2)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• 5 cm soil heat flow, site 5(shf5)
• Top humidity(hum_top)
• soil heat flow, site 5(g5)
• Retrieved pressure profile(pres)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Time offset of tweaks from base_time(time_offset)
• volumetric soil moisture, site 3(sm3)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• Dummy altitude for Zeb(alt)
• volumetric soil moisture, site 2(sm2)
• bottom vapor pressure(vp_bot)
• soil heat flow, site 3(g3)
• h(h)
• Soil heat capacity 5(cs5)
• wind direction (relative to true north)(wind_d)
• 0-5 cm integrated soil temperature, site 2(ts2)
• 0-5 cm integrated soil temperature, site 2(ts1)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• bottom air temperature(tair_bot)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• soil heat flow, site 1(g1)
• 0-5 cm integrated soil temperature, site 3(ts3)
• top air temperature(tair_top)
• 0-5 cm integrated soil temperature, site 4(ts4)
• top vapor pressure(vp_top)
• soil heat flow, site 4(g4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• average surface soil heat flow(ave_shf)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• soil heat flow, site 2(g2)
• Soil heat capacity 4(cs4)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• vector wind speed(res_ws)
• Reference Thermistor Temperature(tref)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• Soil heat capacity 3(cs3)
• volumetric soil moisture, site 4(sm4)
• Temperature of the top humidity chamber(thum_top)
• Soil heat capacity 2(cs2)
• lat(lat)
• base time(base_time)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow, site 4(shf4)
• lon(lon)
• latent heat flux(e)
• Soil heat capacity 1(cs1)
• scalar wind speed(wind_s)
• 5 cm soil heat flow, site 3(shf3)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)

• vector wind speed(res_ws)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Retrieved pressure profile(pres)
• lat(lat)
• bottom vapor pressure(vp_bot)
• Top humidity(hum_top)
• lon(lon)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• Time offset of tweaks from base_time(time_offset)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• wind direction (relative to true north)(wind_d)
• net radiation(q)
• Reference Thermistor Temperature(tref)
• top air temperature(tair_top)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Home signal(home)
• scalar wind speed(wind_s)

• Soil moisture 4(r_sm4)
• Right air temperature(tair_r)
• Soil temperature 5(rr_ts5)
• Left air temperature(tair_l)
• Soil moisture 3(r_sm3)
• Right relative humidity(mv_hum_r)
• Home signal(mv_home)
• Signature(signature)
• base time(base_time)
• Soil heat flow 2(mv_hft2)
• scalar wind speed(wind_s)
• Left relative humidity(mv_hum_l)
• Soil heat flow 1(mv_hft1)
• Soil heat flow 5(mv_hft5)
• Soil moisture 1(r_sm1)
• Reference temperature(rr_tref)
• Dummy altitude for Zeb(alt)
• Soil heat flow 3(mv_hft3)
• Soil heat flow 4(mv_hft4)
• Soil moisture 5(r_sm5)
• Soil moisture 2(r_sm2)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Net radiation(mv_q)
• Soil temperature 1(rr_ts1)
• lat(lat)
• Atmospheric pressure(mv_pres)
• Battery(bat)
• Soil temperature 4(rr_ts4)
• Soil temperature 3(rr_ts3)
• Soil temperature 2(rr_ts2)
• lon(lon)
• Wind direction (relative to true north)(mv_wind_d)
• Time offset of tweaks from base_time(time_offset)
• Temperature of left humidity sensor chamber(rr_thum_l)

SGP/EBBR/E12 - 3-Month Check

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.

• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)

• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• h(h)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• top air temperature(tair_top)

• Left air temperature(tair_l)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Right air temperature(tair_r)
• Left relative humidity(mv_hum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right relative humidity(mv_hum_r)

SGP/EBBR/E18 - 3 Month Check

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.

• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)

• Temperature of left humidity sensor chamber(rr_thum_l)
• Right relative humidity(mv_hum_r)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left relative humidity(mv_hum_l)
• Right air temperature(tair_r)
• Left air temperature(tair_l)

• top vapor pressure(vp_top)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• Bottom humidity(hum_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• latent heat flux(e)
• Temperature of the top humidity chamber(thum_top)
• h(h)
• Top humidity(hum_top)

SGP/EBBR/E20 - 3 Month Check

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.

• Bottom humidity(hum_bot)
• volumetric soil moisture, site 4(sm4)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• h(h)
• volumetric soil moisture, site 5(sm5)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• latent heat flux(e)
• bottom air temperature(tair_bot)

• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• bottom air temperature(tair_bot)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)

• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Left air temperature(tair_l)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)
• Temperature of left humidity sensor chamber(rr_thum_l)

SGP/EBBR/E7 - 3-Month Check

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.

• Temperature of left humidity sensor chamber(rr_thum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left relative humidity(mv_hum_l)
• Left air temperature(tair_l)
• Right air temperature(tair_r)
• Right relative humidity(mv_hum_r)

• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• top air temperature(tair_top)
• Top humidity(hum_top)
• top vapor pressure(vp_top)
• bottom air temperature(tair_bot)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• latent heat flux(e)
• h(h)
• Bottom humidity(hum_bot)
• Temperature of the top humidity chamber(thum_top)

• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• top air temperature(tair_top)
• bottom air temperature(tair_bot)
• top vapor pressure(vp_top)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom vapor pressure(vp_bot)

SGP/EBBR/E12 - Wind Direction Sensor Failure

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

• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• vector wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E18 - Six Month Checks

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.

• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)

• Temperature of left humidity sensor chamber(rr_thum_l)
• Right relative humidity(mv_hum_r)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left relative humidity(mv_hum_l)
• Right air temperature(tair_r)
• Left air temperature(tair_l)

• top vapor pressure(vp_top)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• Bottom humidity(hum_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• latent heat flux(e)
• Temperature of the top humidity chamber(thum_top)
• h(h)
• Top humidity(hum_top)

SGP/EBBR/E20 - Six Month Checks

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.

• Bottom humidity(hum_bot)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• h(h)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• latent heat flux(e)
• bottom air temperature(tair_bot)

• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• bottom air temperature(tair_bot)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)

• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Left air temperature(tair_l)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)
• Temperature of left humidity sensor chamber(rr_thum_l)

SGP/EBBR/E7 - Six-Month Checks

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.

• Temperature of left humidity sensor chamber(rr_thum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left relative humidity(mv_hum_l)
• Left air temperature(tair_l)
• Right air temperature(tair_r)
• Right relative humidity(mv_hum_r)

• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• top air temperature(tair_top)
• Top humidity(hum_top)
• top vapor pressure(vp_top)
• bottom air temperature(tair_bot)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• latent heat flux(e)
• h(h)
• Bottom humidity(hum_bot)
• Temperature of the top humidity chamber(thum_top)

• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• top air temperature(tair_top)
• bottom air temperature(tair_bot)
• top vapor pressure(vp_top)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom vapor pressure(vp_bot)

SGP/EBBR/E12 - Six Month Checks

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.

• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)

• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• h(h)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• top air temperature(tair_top)

• Left air temperature(tair_l)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Right air temperature(tair_r)
• Left relative humidity(mv_hum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right relative humidity(mv_hum_r)

SGP/EBBR/E18 - Reprocess: E18 EBBR Net Radiometer Calibration

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)

• Top humidity(hum_top)
• top vapor pressure(vp_top)
• bottom vapor pressure(vp_bot)
• wind direction (relative to true north)(wind_d)
• Retrieved pressure profile(pres)
• Time offset of tweaks from base_time(time_offset)
• scalar wind speed(wind_s)
• lon(lon)
• net radiation(q)
• Bottom humidity(hum_bot)
• Reference Thermistor Temperature(tref)
• Home signal(home)
• lat(lat)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• base time(base_time)
• bottom air temperature(tair_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)
• Dummy altitude for Zeb(alt)

• Soil heat capacity 1(cs1)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• top vapor pressure(vp_top)
• Soil heat capacity 3(cs3)
• 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 corrected for soil moisture content, site 1(c_shf1)
• top air temperature(tair_top)
• bottom vapor pressure(vp_bot)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• lon(lon)
• lat(lat)
• 0-5 cm integrated soil temperature, site 4(ts4)
• Bottom humidity(hum_bot)
• soil heat flow, site 2(g2)
• soil heat flow, site 4(g4)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• volumetric soil moisture, site 4(sm4)
• 5 cm soil heat flow, site 4(shf4)
• Reference Thermistor Temperature(tref)
• Temperature of bottom humidity sensor chamber(thum_bot)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• volumetric soil moisture, site 2(sm2)
• 0-5 cm integrated soil temperature, site 2(ts1)
• latent heat flux(e)
• Time offset of tweaks from base_time(time_offset)
• Temperature of the top humidity chamber(thum_top)
• Soil heat capacity 5(cs5)
• scalar wind speed(wind_s)
• h(h)
• Dummy altitude for Zeb(alt)
• 0-5 cm integrated soil temperature, site 5(ts5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Soil heat capacity 2(cs2)
• 5 cm soil heat flow, site 3(shf3)
• Top humidity(hum_top)
• 0-5 cm integrated soil temperature, site 3(ts3)
• Soil heat capacity 4(cs4)
• volumetric soil moisture, site 5(sm5)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Retrieved pressure profile(pres)
• soil heat flow, site 5(g5)
• 5 cm soil heat flow, site 1(shf1)
• wind direction (relative to true north)(wind_d)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• 0-5 cm integrated soil temperature, site 2(ts2)
• 5 cm soil heat flow, site 2(shf2)
• base time(base_time)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• volumetric soil moisture, site 1(sm1)
• soil heat flow, site 3(g3)
• bottom air temperature(tair_bot)
• 5 cm soil heat flow, site 5(shf5)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• vector wind speed(res_ws)
• soil heat flow, site 1(g1)
• average surface soil heat flow(ave_shf)
• volumetric soil moisture, site 3(sm3)
• net radiation(q)

SGP/EBBR/E20 - Wind Speed Incorrect

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

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E20 - Incorrect Data - Cattle Vandalism

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)

• Bottom humidity(hum_bot)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• h(h)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• latent heat flux(e)
• bottom air temperature(tair_bot)

• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• bottom air temperature(tair_bot)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• Top humidity(hum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)

• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Left air temperature(tair_l)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)
• Temperature of left humidity sensor chamber(rr_thum_l)

SGP/EBBR/E7 - Data Incorrect Because of Recompile

All data for the 5, 15, and 30 minute periods ending at 1600 GMT are
incorrect or missing because the CR10 program was recompiled.

• 0-5 cm change in soil heat storage with time, site 3(ces3)
• wind direction (relative to true north)(wind_d)
• soil heat flow, site 2(g2)
• top air temperature(tair_top)
• average surface soil heat flow(ave_shf)
• vector wind speed(res_ws)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• volumetric soil moisture, site 5(sm5)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 0-5 cm integrated soil temperature, site 2(ts2)
• Dummy altitude for Zeb(alt)
• bottom air temperature(tair_bot)
• volumetric soil moisture, site 4(sm4)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 0-5 cm integrated soil temperature, site 4(ts4)
• volumetric soil moisture, site 2(sm2)
• Soil heat capacity 2(cs2)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• volumetric soil moisture, site 1(sm1)
• latent heat flux(e)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• lat(lat)
• soil heat flow, site 4(g4)
• soil heat flow, site 3(g3)
• Temperature of the top humidity chamber(thum_top)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• Soil heat capacity 5(cs5)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Soil heat capacity 3(cs3)
• Retrieved pressure profile(pres)
• Reference Thermistor Temperature(tref)
• Soil heat capacity 1(cs1)
• 5 cm soil heat flow, site 5(shf5)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• net radiation(q)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• Soil heat capacity 4(cs4)
• 5 cm soil heat flow, site 1(shf1)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom vapor pressure(vp_bot)
• 5 cm soil heat flow, site 4(shf4)
• h(h)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• lon(lon)
• Time offset of tweaks from base_time(time_offset)
• soil heat flow, site 1(g1)
• Top humidity(hum_top)
• soil heat flow, site 5(g5)
• base time(base_time)
• top vapor pressure(vp_top)
• scalar wind speed(wind_s)
• 5 cm soil heat flow, site 2(shf2)
• 0-5 cm integrated soil temperature, site 3(ts3)
• 5 cm soil heat flow, site 3(shf3)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• Bottom humidity(hum_bot)
• 0-5 cm integrated soil temperature, site 2(ts1)
• volumetric soil moisture, site 3(sm3)

• Soil moisture 5(r_sm5)
• Atmospheric pressure(mv_pres)
• Soil temperature 5(rr_ts5)
• Left relative humidity(mv_hum_l)
• Dummy altitude for Zeb(alt)
• Soil heat flow 5(mv_hft5)
• Soil moisture 2(r_sm2)
• Soil temperature 4(rr_ts4)
• Soil heat flow 4(mv_hft4)
• Soil moisture 3(r_sm3)
• Battery(bat)
• Wind direction (relative to true north)(mv_wind_d)
• Time offset of tweaks from base_time(time_offset)
• lat(lat)
• Left air temperature(tair_l)
• Right air temperature(tair_r)
• lon(lon)
• Soil moisture 1(r_sm1)
• base time(base_time)
• Soil heat flow 1(mv_hft1)
• Soil moisture 4(r_sm4)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right relative humidity(mv_hum_r)
• Soil temperature 2(rr_ts2)
• Soil temperature 3(rr_ts3)
• Soil heat flow 2(mv_hft2)
• Soil heat flow 3(mv_hft3)
• Net radiation(mv_q)
• Signature(signature)
• Home signal(mv_home)
• Soil temperature 1(rr_ts1)
• Reference temperature(rr_tref)
• scalar wind speed(wind_s)

• top air temperature(tair_top)
• Retrieved pressure profile(pres)
• top vapor pressure(vp_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• scalar wind speed(wind_s)
• lat(lat)
• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)
• lon(lon)
• wind direction (relative to true north)(wind_d)
• Home signal(home)
• Top humidity(hum_top)
• bottom vapor pressure(vp_bot)
• net radiation(q)
• base time(base_time)
• bottom air temperature(tair_bot)
• Time offset of tweaks from base_time(time_offset)
• Reference Thermistor Temperature(tref)
• Dummy altitude for Zeb(alt)

SGP/EBBR/E18 - Water In Net Radiometer, Flux Data Incorrect

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

• net radiation(q)

• Net radiation(mv_q)

• h(h)
• net radiation(q)
• latent heat flux(e)

SGP/EBBR/E12 - Wind Direction Data Incorrect (revised)

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

• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• vector wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E7 - Wind Direction Data Incorrect (revised)

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

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Wind direction (relative to true north)(mv_wind_d)

• wind direction (relative to true north)(wind_d)
• vector wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)

SGP/EBBR/E18 - Wind Direction Data Incorrect (revised)

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

• Wind direction (relative to true north)(mv_wind_d)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• vector wind speed(res_ws)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• vector wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

SGP/EBBR/E20 - Wind Direction Data Incorrect (revised)

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

• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• vector wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E20 - Wind Direction Data Incorrect

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

• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• vector wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR - EBBR E18 Wind Speed Data Incorrect

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,

• Top humidity(hum_top)
• top vapor pressure(vp_top)
• bottom vapor pressure(vp_bot)
• scalar wind speed(wind_s)
• lon(lon)
• Bottom humidity(hum_bot)
• Reference Thermistor Temperature(tref)
• lat(lat)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)
• Dummy altitude for Zeb(alt)
• wind direction (relative to true north)(wind_d)
• Retrieved pressure profile(pres)
• Time offset of tweaks from base_time(time_offset)
• net radiation(q)
• Home signal(home)
• base time(base_time)
• bottom air temperature(tair_bot)

• lat(lat)
• Wind direction (relative to true north)(mv_wind_d)
• Home signal(mv_home)
• Dummy altitude for Zeb(alt)
• Reference temperature(rr_tref)
• Soil temperature 4(rr_ts4)
• Soil temperature 3(rr_ts3)
• base time(base_time)
• Soil temperature 1(rr_ts1)
• Right relative humidity(mv_hum_r)
• Left relative humidity(mv_hum_l)
• lon(lon)
• Left air temperature(tair_l)
• Soil moisture 1(r_sm1)
• Soil moisture 2(r_sm2)
• Soil moisture 3(r_sm3)
• Battery(bat)
• Time offset of tweaks from base_time(time_offset)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Soil moisture 4(r_sm4)
• Soil heat flow 1(mv_hft1)
• scalar wind speed(wind_s)
• Soil temperature 2(rr_ts2)
• Soil temperature 5(rr_ts5)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Net radiation(mv_q)
• Soil moisture 5(r_sm5)
• Soil heat flow 4(mv_hft4)
• Soil heat flow 3(mv_hft3)
• Soil heat flow 2(mv_hft2)
• Signature(signature)
• Soil heat flow 5(mv_hft5)
• Right air temperature(tair_r)
• Atmospheric pressure(mv_pres)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• Soil heat capacity 3(cs3)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• soil heat flow, site 2(g2)
• soil heat flow, site 4(g4)
• volumetric soil moisture, site 4(sm4)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• 0-5 cm integrated soil temperature, site 2(ts1)
• Time offset of tweaks from base_time(time_offset)
• Temperature of the top humidity chamber(thum_top)
• h(h)
• Soil heat capacity 4(cs4)
• 5 cm soil heat flow, site 1(shf1)
• wind direction (relative to true north)(wind_d)
• 5 cm soil heat flow, site 2(shf2)
• 0-5 cm integrated soil temperature, site 2(ts2)
• volumetric soil moisture, site 1(sm1)
• soil heat flow, site 3(g3)
• 5 cm soil heat flow, site 5(shf5)
• vector wind speed(res_ws)
• average surface soil heat flow(ave_shf)
• net radiation(q)
• Soil heat capacity 1(cs1)
• top vapor pressure(vp_top)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• top air temperature(tair_top)
• bottom vapor pressure(vp_bot)
• 0-5 cm integrated soil temperature, site 4(ts4)
• lat(lat)
• lon(lon)
• Bottom humidity(hum_bot)
• 5 cm soil heat flow, site 4(shf4)
• Reference Thermistor Temperature(tref)
• Temperature of bottom humidity sensor chamber(thum_bot)
• volumetric soil moisture, site 2(sm2)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• latent heat flux(e)
• Soil heat capacity 5(cs5)
• scalar wind speed(wind_s)
• Dummy altitude for Zeb(alt)
• 0-5 cm integrated soil temperature, site 5(ts5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Soil heat capacity 2(cs2)
• 5 cm soil heat flow, site 3(shf3)
• 0-5 cm integrated soil temperature, site 3(ts3)
• Top humidity(hum_top)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• volumetric soil moisture, site 5(sm5)
• Retrieved pressure profile(pres)
• soil heat flow, site 5(g5)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• base time(base_time)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• bottom air temperature(tair_bot)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• soil heat flow, site 1(g1)
• volumetric soil moisture, site 3(sm3)

SGP/EBBR/E18 - Wind Speed Data Incorrect

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,

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

• scalar wind speed(wind_s)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

SGP/EBBR/E18 - Wind Speed Data Incorrect

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,

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

• scalar wind speed(wind_s)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

SGP/EBBR/E20 - Wind Speed Data Incorrect

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,

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E20 - Wind Speed Data Incorrect

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,

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E12 - Wind Speed Data Incorrect

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,

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

• scalar wind speed(wind_s)

SGP/EBBR - EBBR E12 Wind Speed Data Incorrect

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,

• Retrieved pressure profile(pres)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Reference Thermistor Temperature(tref)
• Temperature of bottom humidity sensor chamber(thum_bot)
• lat(lat)
• bottom vapor pressure(vp_bot)
• lon(lon)
• top air temperature(tair_top)
• scalar wind speed(wind_s)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Home signal(home)
• net radiation(q)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• Time offset of tweaks from base_time(time_offset)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)
• wind direction (relative to true north)(wind_d)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• 5 cm soil heat flow, site 1(shf1)
• net radiation(q)
• Soil heat capacity 4(cs4)
• 5 cm soil heat flow, site 3(shf3)
• Soil heat capacity 1(cs1)
• Soil heat capacity 2(cs2)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• 0-5 cm integrated soil temperature, site 2(ts1)
• wind direction (relative to true north)(wind_d)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• lon(lon)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• average surface soil heat flow(ave_shf)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• 5 cm soil heat flow, site 2(shf2)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• Soil heat capacity 3(cs3)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• Dummy altitude for Zeb(alt)
• Soil heat capacity 5(cs5)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 4(shf4)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm integrated soil temperature, site 4(ts4)
• soil heat flow, site 2(g2)
• 5 cm soil heat flow, site 5(shf5)
• Time offset of tweaks from base_time(time_offset)
• volumetric soil moisture, site 1(sm1)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• h(h)
• soil heat flow, site 4(g4)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• base time(base_time)
• top air temperature(tair_top)
• volumetric soil moisture, site 2(sm2)
• scalar wind speed(wind_s)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• soil heat flow, site 1(g1)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Retrieved pressure profile(pres)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• soil heat flow, site 5(g5)
• vector wind speed(res_ws)
• soil heat flow, site 3(g3)
• lat(lat)
• 0-5 cm integrated soil temperature, site 3(ts3)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• 0-5 cm integrated soil temperature, site 2(ts2)

• Home signal(mv_home)
• Dummy altitude for Zeb(alt)
• Soil moisture 5(r_sm5)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Soil heat flow 3(mv_hft3)
• Soil moisture 3(r_sm3)
• Soil heat flow 2(mv_hft2)
• Net radiation(mv_q)
• Left air temperature(tair_l)
• lat(lat)
• Soil heat flow 4(mv_hft4)
• Soil temperature 1(rr_ts1)
• Soil temperature 2(rr_ts2)
• Battery(bat)
• Soil temperature 3(rr_ts3)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)
• lon(lon)
• Soil moisture 4(r_sm4)
• Time offset of tweaks from base_time(time_offset)
• base time(base_time)
• Right air temperature(tair_r)
• Soil moisture 1(r_sm1)
• Soil heat flow 5(mv_hft5)
• Wind direction (relative to true north)(mv_wind_d)
• Soil moisture 2(r_sm2)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Soil temperature 5(rr_ts5)
• Soil heat flow 1(mv_hft1)
• Soil temperature 4(rr_ts4)
• scalar wind speed(wind_s)
• Signature(signature)
• Atmospheric pressure(mv_pres)
• Reference temperature(rr_tref)

SGP/EBBR/E7 - EBBR E7 Wind Speed Data Incorrect

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,

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

SGP/EBBR/E7 - Wind Speed Data Incorrect

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,

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

SGP/EBBR - EBBR E12 Wind Speed Data Incorrect

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,

• Retrieved pressure profile(pres)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Reference Thermistor Temperature(tref)
• Temperature of bottom humidity sensor chamber(thum_bot)
• lat(lat)
• bottom vapor pressure(vp_bot)
• lon(lon)
• top air temperature(tair_top)
• scalar wind speed(wind_s)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Home signal(home)
• net radiation(q)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• Time offset of tweaks from base_time(time_offset)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)
• wind direction (relative to true north)(wind_d)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• 5 cm soil heat flow, site 1(shf1)
• net radiation(q)
• Soil heat capacity 4(cs4)
• 5 cm soil heat flow, site 3(shf3)
• Soil heat capacity 1(cs1)
• Soil heat capacity 2(cs2)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• 0-5 cm integrated soil temperature, site 2(ts1)
• wind direction (relative to true north)(wind_d)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• lon(lon)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• average surface soil heat flow(ave_shf)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• 5 cm soil heat flow, site 2(shf2)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• Soil heat capacity 3(cs3)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• Dummy altitude for Zeb(alt)
• Soil heat capacity 5(cs5)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 4(shf4)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm integrated soil temperature, site 4(ts4)
• soil heat flow, site 2(g2)
• 5 cm soil heat flow, site 5(shf5)
• Time offset of tweaks from base_time(time_offset)
• volumetric soil moisture, site 1(sm1)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• h(h)
• soil heat flow, site 4(g4)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• base time(base_time)
• top air temperature(tair_top)
• volumetric soil moisture, site 2(sm2)
• scalar wind speed(wind_s)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• soil heat flow, site 1(g1)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Retrieved pressure profile(pres)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• soil heat flow, site 5(g5)
• vector wind speed(res_ws)
• soil heat flow, site 3(g3)
• lat(lat)
• 0-5 cm integrated soil temperature, site 3(ts3)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• 0-5 cm integrated soil temperature, site 2(ts2)

• Home signal(mv_home)
• Dummy altitude for Zeb(alt)
• Soil moisture 5(r_sm5)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Soil heat flow 3(mv_hft3)
• Soil moisture 3(r_sm3)
• Soil heat flow 2(mv_hft2)
• Net radiation(mv_q)
• Left air temperature(tair_l)
• lat(lat)
• Soil heat flow 4(mv_hft4)
• Soil temperature 1(rr_ts1)
• Soil temperature 2(rr_ts2)
• Battery(bat)
• Soil temperature 3(rr_ts3)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)
• lon(lon)
• Soil moisture 4(r_sm4)
• Time offset of tweaks from base_time(time_offset)
• base time(base_time)
• Right air temperature(tair_r)
• Soil moisture 1(r_sm1)
• Soil heat flow 5(mv_hft5)
• Wind direction (relative to true north)(mv_wind_d)
• Soil moisture 2(r_sm2)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Soil temperature 5(rr_ts5)
• Soil heat flow 1(mv_hft1)
• Soil temperature 4(rr_ts4)
• scalar wind speed(wind_s)
• Signature(signature)
• Atmospheric pressure(mv_pres)
• Reference temperature(rr_tref)

SGP/EBBR/E12 - Data Incorrect

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.

• Retrieved pressure profile(pres)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Reference Thermistor Temperature(tref)
• Temperature of bottom humidity sensor chamber(thum_bot)
• lat(lat)
• bottom vapor pressure(vp_bot)
• lon(lon)
• top air temperature(tair_top)
• scalar wind speed(wind_s)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Home signal(home)
• net radiation(q)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• Time offset of tweaks from base_time(time_offset)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)
• wind direction (relative to true north)(wind_d)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• 5 cm soil heat flow, site 1(shf1)
• net radiation(q)
• Soil heat capacity 4(cs4)
• 5 cm soil heat flow, site 3(shf3)
• Soil heat capacity 1(cs1)
• Soil heat capacity 2(cs2)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• 0-5 cm integrated soil temperature, site 2(ts1)
• wind direction (relative to true north)(wind_d)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• lon(lon)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• average surface soil heat flow(ave_shf)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• 5 cm soil heat flow, site 2(shf2)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• Soil heat capacity 3(cs3)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• Dummy altitude for Zeb(alt)
• Soil heat capacity 5(cs5)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 4(shf4)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm integrated soil temperature, site 4(ts4)
• soil heat flow, site 2(g2)
• 5 cm soil heat flow, site 5(shf5)
• Time offset of tweaks from base_time(time_offset)
• volumetric soil moisture, site 1(sm1)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• h(h)
• soil heat flow, site 4(g4)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• base time(base_time)
• top air temperature(tair_top)
• volumetric soil moisture, site 2(sm2)
• scalar wind speed(wind_s)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• soil heat flow, site 1(g1)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Retrieved pressure profile(pres)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• soil heat flow, site 5(g5)
• vector wind speed(res_ws)
• soil heat flow, site 3(g3)
• lat(lat)
• 0-5 cm integrated soil temperature, site 3(ts3)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• 0-5 cm integrated soil temperature, site 2(ts2)

• Home signal(mv_home)
• Dummy altitude for Zeb(alt)
• Soil moisture 5(r_sm5)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Soil heat flow 3(mv_hft3)
• Soil moisture 3(r_sm3)
• Soil heat flow 2(mv_hft2)
• Net radiation(mv_q)
• Left air temperature(tair_l)
• lat(lat)
• Soil heat flow 4(mv_hft4)
• Soil temperature 1(rr_ts1)
• Soil temperature 2(rr_ts2)
• Battery(bat)
• Soil temperature 3(rr_ts3)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)
• lon(lon)
• Soil moisture 4(r_sm4)
• Time offset of tweaks from base_time(time_offset)
• base time(base_time)
• Right air temperature(tair_r)
• Soil moisture 1(r_sm1)
• Soil heat flow 5(mv_hft5)
• Wind direction (relative to true north)(mv_wind_d)
• Soil moisture 2(r_sm2)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Soil temperature 5(rr_ts5)
• Soil heat flow 1(mv_hft1)
• Soil temperature 4(rr_ts4)
• scalar wind speed(wind_s)
• Signature(signature)
• Atmospheric pressure(mv_pres)
• Reference temperature(rr_tref)

SGP/EBBR/E12 - Temperature, RH, and Vapor Pressure Data Incorrect

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

• Top humidity(hum_top)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• Bottom humidity(hum_bot)
• Temperature of the top humidity chamber(thum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)

• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• top vapor pressure(vp_top)
• bottom vapor pressure(vp_bot)
• Temperature of the top humidity chamber(thum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• latent heat flux(e)
• h(h)
• top air temperature(tair_top)

• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Right relative humidity(mv_hum_r)

SGP/EBBR/E12 - All Temperature Measurements Incorrect

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.

• bottom air temperature(tair_bot)
• Reference Thermistor Temperature(tref)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• Temperature of bottom humidity sensor chamber(thum_bot)

• 0-5 cm integrated soil temperature, site 2(ts1)
• 0-5 cm integrated soil temperature, site 4(ts4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Reference Thermistor Temperature(tref)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• h(h)
• Temperature of the top humidity chamber(thum_top)
• 0-5 cm integrated soil temperature, site 3(ts3)
• latent heat flux(e)
• top air temperature(tair_top)
• 0-5 cm integrated soil temperature, site 2(ts2)

• Left air temperature(tair_l)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Soil temperature 4(rr_ts4)
• Right air temperature(tair_r)
• Soil temperature 1(rr_ts1)
• Soil temperature 2(rr_ts2)
• Soil temperature 3(rr_ts3)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Soil temperature 5(rr_ts5)
• Reference temperature(rr_tref)

SGP/EBBR/E20 - Data Incorrect

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.

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Bottom humidity(hum_bot)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• volumetric soil moisture, site 1(sm1)
• 5 cm soil heat flow, site 1(shf1)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• volumetric soil moisture, site 5(sm5)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• net radiation(q)
• 5 cm soil heat flow, site 2(shf2)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• 5 cm soil heat flow, site 5(shf5)
• Top humidity(hum_top)
• soil heat flow, site 5(g5)
• Retrieved pressure profile(pres)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Time offset of tweaks from base_time(time_offset)
• volumetric soil moisture, site 3(sm3)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• Dummy altitude for Zeb(alt)
• volumetric soil moisture, site 2(sm2)
• bottom vapor pressure(vp_bot)
• soil heat flow, site 3(g3)
• h(h)
• Soil heat capacity 5(cs5)
• wind direction (relative to true north)(wind_d)
• 0-5 cm integrated soil temperature, site 2(ts2)
• 0-5 cm integrated soil temperature, site 2(ts1)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• bottom air temperature(tair_bot)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• soil heat flow, site 1(g1)
• 0-5 cm integrated soil temperature, site 3(ts3)
• top air temperature(tair_top)
• 0-5 cm integrated soil temperature, site 4(ts4)
• top vapor pressure(vp_top)
• soil heat flow, site 4(g4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• average surface soil heat flow(ave_shf)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• soil heat flow, site 2(g2)
• Soil heat capacity 4(cs4)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• vector wind speed(res_ws)
• Reference Thermistor Temperature(tref)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• Soil heat capacity 3(cs3)
• volumetric soil moisture, site 4(sm4)
• Temperature of the top humidity chamber(thum_top)
• Soil heat capacity 2(cs2)
• lat(lat)
• base time(base_time)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow, site 4(shf4)
• lon(lon)
• latent heat flux(e)
• Soil heat capacity 1(cs1)
• scalar wind speed(wind_s)
• 5 cm soil heat flow, site 3(shf3)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)

• vector wind speed(res_ws)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Retrieved pressure profile(pres)
• lat(lat)
• bottom vapor pressure(vp_bot)
• Top humidity(hum_top)
• lon(lon)
• top vapor pressure(vp_top)
• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• Time offset of tweaks from base_time(time_offset)
• Temperature of bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• wind direction (relative to true north)(wind_d)
• net radiation(q)
• Reference Thermistor Temperature(tref)
• top air temperature(tair_top)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Home signal(home)
• scalar wind speed(wind_s)

• Soil moisture 4(r_sm4)
• Right air temperature(tair_r)
• Soil temperature 5(rr_ts5)
• Left air temperature(tair_l)
• Soil moisture 3(r_sm3)
• Right relative humidity(mv_hum_r)
• Home signal(mv_home)
• Signature(signature)
• base time(base_time)
• Soil heat flow 2(mv_hft2)
• scalar wind speed(wind_s)
• Left relative humidity(mv_hum_l)
• Soil heat flow 1(mv_hft1)
• Soil heat flow 5(mv_hft5)
• Soil moisture 1(r_sm1)
• Reference temperature(rr_tref)
• Dummy altitude for Zeb(alt)
• Soil heat flow 3(mv_hft3)
• Soil heat flow 4(mv_hft4)
• Soil moisture 5(r_sm5)
• Soil moisture 2(r_sm2)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Net radiation(mv_q)
• Soil temperature 1(rr_ts1)
• lat(lat)
• Atmospheric pressure(mv_pres)
• Battery(bat)
• Soil temperature 4(rr_ts4)
• Soil temperature 3(rr_ts3)
• Soil temperature 2(rr_ts2)
• lon(lon)
• Wind direction (relative to true north)(mv_wind_d)
• Time offset of tweaks from base_time(time_offset)
• Temperature of left humidity sensor chamber(rr_thum_l)

SGP/EBBR/E20 - Pressure Low

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.

• latent heat flux(e)
• top vapor pressure(vp_top)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• h(h)
• Retrieved pressure profile(pres)
• bottom vapor pressure(vp_bot)

• bottom vapor pressure(vp_bot)
• top vapor pressure(vp_top)
• Retrieved pressure profile(pres)

• Atmospheric pressure(mv_pres)

SGP/EBBR/E18 - Pressure Incorrect

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.

• Top humidity(hum_top)
• top vapor pressure(vp_top)
• bottom vapor pressure(vp_bot)
• wind direction (relative to true north)(wind_d)
• Retrieved pressure profile(pres)
• Time offset of tweaks from base_time(time_offset)
• scalar wind speed(wind_s)
• lon(lon)
• net radiation(q)
• Bottom humidity(hum_bot)
• Reference Thermistor Temperature(tref)
• Home signal(home)
• lat(lat)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• base time(base_time)
• bottom air temperature(tair_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• vector wind speed(res_ws)
• Dummy altitude for Zeb(alt)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Soil heat capacity 1(cs1)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• top vapor pressure(vp_top)
• Soil heat capacity 3(cs3)
• 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 corrected for soil moisture content, site 1(c_shf1)
• top air temperature(tair_top)
• bottom vapor pressure(vp_bot)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• lon(lon)
• lat(lat)
• 0-5 cm integrated soil temperature, site 4(ts4)
• Bottom humidity(hum_bot)
• soil heat flow, site 2(g2)
• soil heat flow, site 4(g4)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• volumetric soil moisture, site 4(sm4)
• 5 cm soil heat flow, site 4(shf4)
• Reference Thermistor Temperature(tref)
• Temperature of bottom humidity sensor chamber(thum_bot)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• volumetric soil moisture, site 2(sm2)
• 0-5 cm integrated soil temperature, site 2(ts1)
• latent heat flux(e)
• Time offset of tweaks from base_time(time_offset)
• Temperature of the top humidity chamber(thum_top)
• Soil heat capacity 5(cs5)
• scalar wind speed(wind_s)
• h(h)
• Dummy altitude for Zeb(alt)
• 0-5 cm integrated soil temperature, site 5(ts5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Soil heat capacity 2(cs2)
• 5 cm soil heat flow, site 3(shf3)
• Top humidity(hum_top)
• 0-5 cm integrated soil temperature, site 3(ts3)
• Soil heat capacity 4(cs4)
• volumetric soil moisture, site 5(sm5)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Retrieved pressure profile(pres)
• soil heat flow, site 5(g5)
• 5 cm soil heat flow, site 1(shf1)
• wind direction (relative to true north)(wind_d)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• 0-5 cm integrated soil temperature, site 2(ts2)
• 5 cm soil heat flow, site 2(shf2)
• base time(base_time)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• volumetric soil moisture, site 1(sm1)
• soil heat flow, site 3(g3)
• bottom air temperature(tair_bot)
• 5 cm soil heat flow, site 5(shf5)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• vector wind speed(res_ws)
• soil heat flow, site 1(g1)
• average surface soil heat flow(ave_shf)
• volumetric soil moisture, site 3(sm3)
• net radiation(q)