Vaisala AWS330 - Page 292

User's Guide ______________________________________________________________________
288 _________________________________________________________________ M211296EN-A
Table 118 Inputs for Evapotranspiration Calculation
Input Variable(s)
Net radiation R
n
GIRRAVG1D; see Table 9 on page 25
Station parameter 'evap_albedo'; see Table
22 on page 117
Temperature values T, T
n,
T
n-1,
T
max,
T
min
Daily statistical values derived from
TAAVG1M; see Table 4 on page 22
Relative humidity values RH
max,
RH
min
Daily statistical values derived from
RHAVG1M; see Table 4 on page 22
Wind speed Uz Daily average of WSAVG2M; see Table 6
on page 24. Wind speed reduction height z
is 10 meters.
Atmospheric pressure P QFEAVG1D; see Table 5 on page 23.
Converted internally to kPa.