Appendix C. EasyFlux
®
DL CR6KH20
C-32
TABLE C-22. Data Fields in the Flux_Notes Output Table
Data Field Name
Units
Description
Data Field
Included
UxFW_Cov
deg C·m·s
-1
Covariance of U
x
and fine-wire
thermocouple temperature
If FW05,
FW1, or FW3
is used
UyFW_Cov
deg C·m·s
-1
Covariance of U
y
and fine-wire
thermocouple temperature
If FW05,
FW1, or FW3
is used
UzFW_Cov
deg C·m·s
-1
Covariance of U
z
and fine-wire
thermocouple temperature
If FW05,
FW1, or FW3
is used
UFW_Cov
deg C·m·s
-1
Covariance of streamwise wind and
fine-wire thermocouple temperature
after coordinate rotations and
covariance maximization
If FW05,
FW1, or FW3
is used
VFW_Cov
deg C·m·s
-1
Covariance of crosswind and fine-wire
thermocouple temperature after
coordinate rotations and covariance
maximization
If FW05,
FW1, or FW3
is used
WFW_Cov
deg C·m·s
-1
Covariance of vertical wind and fine-
wire thermocouple temperature after
coordinate rotations and covariance
maximization
If FW05,
FW1, or FW3
is used
WFW_Cov_fc
deg C·m·s
-1
Covariance of vertical wind and fine-
wire thermocouple temperature after
coordinate rotations, covariance
maximization, and frequency
corrections
If FW05,
FW1, or FW3
is used
FW_samples
count
The number of valid fine-wire
thermocouple measurements in the
averaging period from which
covariances may be calculated
If FW05,
FW1, or FW3
is used
alpha
decimal
degrees
Alpha angle used for coordinate
rotations (regardless of planar fit or
double rotation method, angle
convention of Wilczak et al. 2001 used)
Always
beta
decimal
degrees
Beta angle used for coordinate rotations
(regardless of planar fit or double
rotation method, angle convention of
Wilczak et al. 2001 used)
Always
gamma
decimal
degrees
Gamma angle used for coordinate
rotations (regardless of planar fit or
double rotation method, angle
convention of Wilczak et al. 2001 used)
Always
height_measurement
m
User entered measurement height of EC
sensors
Always
height_canopy
m
User entered canopy height
Always
surface_type_text
text
User entered surface type
Always
