Campbell CPEC300, Руководство по эксплуатации продукта

Страница: 66 / 175

CPEC300/306/310 Closed-Path Eddy-Covariance Systems
57
TABLES 6-7 through 6-14 give a description of all data fields found in each
data output table and when each data field is included in the table.
Prior to coordinate rotations, the orthogonal wind components
from the sonic anemometer are denoted as U
x
, U
y
, and U
z
.
Following coordinate rotations, the common denotation of u, v,
and w is used, respectively.
Variables with _R denote that the value was computed after
coordinate rotations were done. Variables with a _F denote that
the value was calculated after frequency corrections were applied.
Similarly, _SND and _WPL refer to variables that have had the
SND correction or the WPL correction applied, respectively.
TABLE 6-7. Data Fields in the Time_Series Data Output Table
Data Field Name Units Description
Data Field
Included
Ux m·s -1 Wind speed along sonic x-axis Always
Uy m·s -1 Wind speed along sonic y-axis Always
Uz m·s -1 Wind speed along sonic z-axis Always
T_SONIC deg C Sonic temperature Always
diag_sonic –
Raw sonic diagnostic value (0 indicates no
diagnostic flags set)
Always
CO2 µmol·mol -1 CO
2
dry molar mixing ratio Always
H2O mmol·mol -1 H
2
O dry molar mixing ratio Always
diag_irga –
Raw gas analyzer diagnostic value (0 indicates no
diagnostic flags set)
Always
TA_1_1_1 deg C
Air temperature calculated from sonic
temperature and humidity
Always
T_cell deg C Sample cell temperature Always
PA_cell kPa Air pressure inside sample cell Always
CO2_sig_strgth – CO
2
signal strength Always
H2O_sig_strgth – H
2
O signal strength Always
PA_diff kPa
Differential pressure (the difference between
sample cell pressure and ambient pressure)
Always
PA kPa Ambient pressure Always
pump_flow L·min -1
Volumetric air flow to pump; if using vortex
intake, this includes sample flow and vortex
bypass flow
Always
NOTE
NOTE