Campbell KH20 Product Manual page 52

TABLE C-22. Data Fields in the Flux_Notes Output Table
Data Field Name
separation_x_FW
separation_y_FW
FW_diameter
separation_lat_dist_FW
separation_lag_dist_FW
separation_lag_scan_FW
time_const_FW
MAX_LAG
lag_kh20
lag_FW
FreqFactor_UW_VW
FreqFactor_WT_SONIC
FreqFactor_WH2O
FreqFactor_WFW
Units
Separation between sonic and fine-wire
m thermocouple with respect to sonic x-
axis
Separation between sonic and fine-wire
m thermocouple with respect to sonic y-
axis
Effective diameter of fine-wire
m
thermocouple junction
Separation distance between sonic and
m fine-wire thermocouple along axis
perpendicular to oncoming wind
Separation distance between sonic and
m fine-wire thermocouple along axis
parallel to oncoming wind
Number of scans to lag fine-wire
thermocouple data relative to sonic data
scans
to account for separation along axis of
oncoming wind and wind velocity
Calculated time constant of the fine-
m
wire thermocouple
Maximum number of scans to lag
KH20 or fine-wire thermocouple data
with respect to sonic data when doing
cross correlation for covariance
scans
maximization. For example, if
MAX_LAG = 2, the program will
consider lags of −2, −1, 0, +1, and +2.
The lag applied to KH20 data with
scans respect to sonic data that maximizes
covariance
The lag applied to fine-wire
scans thermocouple data with respect to sonic
data that maximizes covariance
Frequency correction factor applied to
number
momentum fluxes
Frequency correction factor applied to
number
wTs covariance
Frequency correction factor applied to
number
wH O covariance values
2
Frequency correction factor applied to
number fine-wire thermocouple derived wFW
covariance
Appendix C. EasyFlux
Description
® DL CR6KH20
Data Field
Included
If FW05,
FW1, or FW3
is used
If FW05,
FW1, or FW3
is used
If FW05,
FW1, or FW3
is used
If FW05,
FW1, or FW3
is used
If FW05,
FW1, or FW3
is used
If FW05,
FW1, or FW3
is used
If FW05,
FW1, or FW3
is used
Always
Always
Always
Always
Always
Always
Always
C-34