cal_airVaporPressureDeficit_meanCanopyflow: Calculating air vapor pressure deficit at the mean canopy

In simET: Tools for Simulation of Evapotranspiration of Field Crops and Soil Water Balance

Calculating air vapor pressure deficit at the mean canopy

Description

Calculating air vapor pressure deficit at the mean canopy

Usage

cal_airVaporPressureDeficit_meanCanopyflow(
  D,
  r_a_a,
  rho_cp = 1221.09,
  DELTA,
  A,
  gamma = 0.658,
  lambda_ET
)

Arguments

D	the vapor pressure deficit (mbar)
r_a_a	the aerodynamic resistance between the mean canopy flow and reference height (s m-1)
rho_cp	the volumetric heat capacity for air (1221.09 J m-3 K-1)
DELTA	is the slope of the saturated vapor pressure curve (mbar K-1)
A	is the total energy available to the system (W m-2 ground)
gamma	psychometric constant (0.658 mbar K-1 )
lambda_ET	the total latent heat flux (W m-2 ground)

Value

A vector for the vapor pressure deficit at the mean canopy flow (mbar)

Note

Knowing D0 is essential because this value is used to calculate the latent and sensible heat fluxes for the soil and crop components.

simET documentation built on Aug. 19, 2023, 5:09 p.m.