SGP/EBBR/E2 - 6 Month Checks

The indicated measurements were incorrect during the 6 month checks.

• Right air temperature(tair_r)
• Left air temperature(tair_l)

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

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

• Right air temperature(tair_r)
• Left air temperature(tair_l)

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

SGP/EBBR/E13 - Reprocess: Soil Heat Flow #2 Incorrect

Soil Heat Flow #2 was incorrect during the indicated period.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:
   ave_shf = (g1 + g3 + g4 + g5)/4
   e = -(q + ave_shf)/(1 + bowen)
   h = -(q + e + ave_shf)

• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• 5 cm soil heat flow, site 2(shf2)
• soil heat flow at the surface 2(g2)
• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• corrected sensible heat flux(h)

• 5 cm soil heat flow, site 2(shf2)
• latent heat flux(e)
• average surface soil heat flow at the surface(ave_shf)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• soil heat flow at the surface 2(g2)
• corrected sensible heat flux(h)

SGP/EBBR/E13 - Wind Direction Incorrect

The wind direction and sigma_wd was near zero for the indicated times.

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

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

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

SGP/EBBR/E18 - AEM Hung

The automatic exchange mechanism did not work properly for a number of time periods.  The 
Bowen ratio, latent heat flux, and sensible heat flux were incorrect also during this 
condition.

• Right air temperature(tair_r)
• Left air temperature(tair_l)

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

• Left air temperature(tair_l)
• Right air temperature(tair_r)

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

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

SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 Incorrect

Soil Heat Flow 1 was incorrect during the indicated periods.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:

ave_shf = (g2 + g3 + g4 + g5)/4

e = -(q + ave_shf)/(1 + bowen)

h = -(q + e + ave_shf)

• latent heat flux(e)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• 5 cm soil heat flow, site 1(shf1)
• soil heat flow at the surface 1(g1)
• corrected sensible heat flux(h)
• average surface soil heat flow at the surface(ave_shf)

• soil heat flow at the surface 1(g1)
• corrected sensible heat flux(h)
• average surface soil heat flow at the surface(ave_shf)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• latent heat flux(e)
• 5 cm soil heat flow, site 1(shf1)

SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header

The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the 
EBBR 30 minute netcdf header have been incorrect from the beginning 
of processing the data into netcdf files.  The correct units are 
MJ/m^3/C.

This does not affect the data quality.

• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)
• Soil heat capacity 3(cs3)
• Soil heat capacity 2(cs2)
• Soil heat capacity 1(cs1)

• Soil heat capacity 3(cs3)
• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)

• Soil heat capacity 3(cs3)
• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)

• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)
• Soil heat capacity 3(cs3)
• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)

• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)

• Soil heat capacity 4(cs4)
• Soil heat capacity 2(cs2)
• Soil heat capacity 1(cs1)
• Soil heat capacity 3(cs3)
• Soil heat capacity 5(cs5)

• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)

• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)
• Soil heat capacity 3(cs3)

• Soil heat capacity 1(cs1)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)

• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)
• Soil heat capacity 5(cs5)

• Soil heat capacity 5(cs5)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)
• Soil heat capacity 2(cs2)

• Soil heat capacity 3(cs3)
• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)

• Soil heat capacity 5(cs5)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)
• Soil heat capacity 2(cs2)
• Soil heat capacity 1(cs1)

SGP/EBBR/E13 - Improved EBBR CR10 Program

Effective 20050331.2100, the EBBR.E13 CR10 program was revised to improve the quality of 
the primary measurements as follows:

1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow.  
This is applied to the individual soil sets.  Measurements outside the limits are 
rejected and the measurements within the limits are used to calculate the average soil heat flow.

2) Max and min limits are used to determine incorrect values of net radiation, sensible 
heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal.  If AEM 
signal is outside the limits, h and e are set to 999s.  If net radiation is outside the 
limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s.

Virtually no incorrect soil measurement will affect the primary measurements of h and e.

By setting h and e to 999s, it can be easily seen that the primary variables are 
incorrect; no other interpretation is possible.

Prior to 20050331, the improved CR10 program was NOT in effect.  DQRs have been submitted 
for known instances of incorrect soil measurements which affected the quality of the 
primary measurements of h and e.

Note: the DQR begin date is the begin date of the sgp30ebbrE13.b1 data stream.  The 
earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. 
sgp30ebbrE13.a1).

• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• corrected sensible heat flux(h)

SGP/EBBR/E18 - Improved EBBR CR10 Program

Effective 20050330.0000, the EBBR.E18 CR10 program was revised to improve 
the quality of the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h 
and e are set to 999s.  If net radiation is outside the limits, h and e are 
set to 999s. If h or e are outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary 
measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary 
variables are incorrect; no other interpretation is possible.
   
Prior to 20050330, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE18.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE18.a1).

• latent heat flux(e)
• corrected sensible heat flux(h)
• average surface soil heat flow at the surface(ave_shf)

SGP/EBBR/E2 - Improved EBBR CR10 Program

Effective 20050324.1700, the EBBR.E2 CR10 program was revised to improve the quality of 
the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h and e are set to 
999s.  If net radiation is outside the limits, h and e are set to 999s. If h or e are 
outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary variables are 
incorrect; no other interpretation is possible.
   
Prior to 20050324, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE2.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE2.a1).

• average surface soil heat flow at the surface(ave_shf)
• corrected sensible heat flux(h)
• latent heat flux(e)