Appendix C. EasyFlux
®
DL CR6KH20
C-23
TABLE C-20. Data Fields in the Flux_AmeriFluxFormat Output Table
Data Field Name
Units
Description
Data Field
Included
LE_SSITC_TEST
none
Result of steady state and integral
turbulence characteristics for LE
according to Foken et al. (2004)
Always
ET
mm·hour
-1
Evapotranspiration
Always
ET_SSITC_TEST
none
Result of steady state and integral
turbulence characteristics for ET
according to Foken et al. (2004)
Always
H
W·m
-2
Sensible heat flux after
corrections
Always
H_SSITC_TEST
none
Result of steady state and integral
turbulence characteristics for FC
according to Foken et al. (2004)
Always
G
W·m
-2
Calculated heat flux at the ground
surface
If energy balance
sensors used
SG
W·m
-2
The change in heat storage in the
soil above the soil heat flux plates
during the averaging interval
If energy balance
sensors used
FETCH_MAX
m
Distance upwind where the
maximum contribution to the
footprint is found
Always
FETCH_90
m
Upwind distance that contains
90% of cumulative footprint. If
NAN is returned, integration of
the model never reached 90%
within the allowable distance of
integration. See the Footprint
appendix in the
EasyFlux DL
CR6OP
manual for more details.
Always
FETCH_55
m
Upwind distance that contains
55% of footprint
Always
FETCH_40
M
Upwind distance that contains
40% of footprint.
Always
WD
decimal degrees
Average wind direction
Always
WS
m·s
-1
Average wind speed
Always
WS_MAX
m·s
-1
Maximum wind speed
Always
USTAR
m·s
-1
Friction velocity
Always
ZL
none
Stability
Always
TAU
kg·m
-1
·s
-2
Momentum Flux
Always
TAU_SSITC_TEST
none
Result of steady state and integral
turbulence characteristics for FC
according to Foken et al. (2004)
Always
MO_LENGTH
M
Monin-Obukhov length
Always
U
m·s
-1
Average streamwise wind
Always
