Campbell KH20 Product Manual page 34

Station Variable
KH20 Coord y
FW Coord x
FW Coord y
FW Dim
GPS Height
Bulk Density
C_dry_soil J·kg
HFP Depth
≤ 60
Planar
or
Fit Alpha
≥ 300
TABLE C-14. Station Variables with Descriptions
Units Default
m 0.15
m 0.01227
m -0.02408
m FW3_DIA
m 2
kg·m -3 1300
-1 K -1 870
m 0.16
decimal
0
degrees
Appendix C. EasyFlux
Description
Distance along the sonic y-axis
between the sonic sampling
volume and KH20 sampling
volume.
Distance along the sonic x-axis
between the sonic sampling
volume and fine-wire
thermocouple. If no fine-wire
thermocouple is being used, this
variable is omitted.
Distance along the sonic y-axis
between the sonic sampling
volume and the fine-wire
thermocouple. If no fine-wire
thermocouple is being used, this
variable is omitted.
Identifies which fine-wire
thermocouple is being used and
loads the appropriate diameter.
For FW05_DIA, FW1_DIA and
FW3_DIA, the diameters are
1.27 x 10 , 2.54 x 10 , and 7.62
-5 -5
x 10 m, respectively. If no fine-
-5
wire thermocouple is being used,
this variable is omitted.
The height of the GPS reciever
above the ground surface. If GPS
is not used, this variable is
omitted.
Average bulk density of soil. If
energy balance sensors are not
used, this variable is omitted.
Specific heat of dry mineral soil.
If energy balance sensors are not
used, this variable is omitted.
Depth of the soil heat flux plates.
If energy balance sensors are not
used, this variable is omitted.
Alpha angle used to rotate the
wind when the mean horizontal
wind is blowing from the sector
of 0 to 60 and 300 to 360
degrees in the sonic coordinate
system (wind blowing into sonic
head). 1/
® DL CR6KH20
Name of variable in
Public Table (in
case no CR1000KD
available)
separation_y_kh20
separation_x_FW
separation_y_FW
FW_diameter
height_GPS16X
soil_bulk_density
cds
thick_abv_HFP
alpha_PF_60_300
C-16