Campbell CPEC300, Руководство по эксплуатации продукта

Страница: 85 / 175

CPEC300/306/310 Closed-Path Eddy-Covariance Systems
76
TABLE 6-12. Data fields in the Flux_Notes Output Table
Data Field Name Units Description
Data Field
Included
MAX_LAG scans
Maximum number of scans to lag gas
analyzer or fine-wire thermocouple data
with respect to sonic data when doing
cross correlation for covariance
maximization. For example, if
MAX_LAG = 2, the program will
consider lags of
−
2,
−
1, 0, +1, and +2.
Always
lag_CO2 scans
The lag applied to CO
2
data with
respect to sonic data that maximizes
covariance
Always
lag_H2O Scans
The lag applied to H
2
O data with
respect to sonic data that maximizes
covariance
Always
lag_FW scans
The lag applied to fine-wire
thermocouple data with respect to sonic
data that maximizes covariance
Always
FreqFactor_UW_VW number
Frequency correction factor applied to
momentum fluxes
Always
FreqFactor_WT_SONIC number
Frequency correction factor applied to
wTs covariance
Always
FreqFactor_WCO2 number
Frequency correction factor applied to
wCO
2
covariance
Always
FreqFactor_WH2O Number
Frequency correction factor applied to
wH
2
O covariance
Always
FreqFactor_WFW number
Frequency correction factor applied to
fine-wire thermocouple derived wFW
covariance
Always
rho_d g·m -3
Average density of dry air calculated
from EC sensors
Always
rho_a kg·m -3
Average density of ambient moist air
calculated from EC sensors
Always
rho_d_probe g·m
-3
Average density of dry air calculated
from temp/RH probe measurements
If a temp/RH
probe is used
rho_a_probe kg·m -3
Average density of ambient moist air
calculated from temp/RH probe
measurements
If a temp/RH
probe is used
Cp J·kg -1· K -1
Specific heat of ambient (moist) air at
constant pressure
Always
Lv J·g -1 Latent heat of vaporization Always
T_panel deg C
Average temperature of the datalogger
wiring panel
Always