RMEP: Calculate evapotranspiration and energy fluxes with MEP...

Description Usage Arguments Value Examples

View source: R/RMEP.R

Description

Calculate actual evapotranspiration, potential evapotranspiration, senseble heat flux and ground heat flux based on the maximum entropy production(MEP) model.

Usage

1
RMEP(Rn, RnL, qs, Ts, I = 800, z = 2.5, type = 1)

Arguments

Rn

net radiation (unit:W/m2)

RnL

net long-wave radiation (unit:W/m2)

qs

specific humidity (unit:kg/kg)

Ts

surface temperature (unit:Celsius)

I

media thermal inertial (units:TIU),default is 800 TIU

z

theoretical height above surface (unit:m), constant value and default is 2.5 m

type

1 for bare soil surface or short canopy, 2 for dense canopy and 3 for Water-snow-ice surface

Value

A list includes latent heat flux(EMEP,W/m2),sensible heat flux(HMEP,W/m2),ground heat flux(GMEP,W/m2) and evapotranspiration(ETMEP,mm/day)

Examples

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RMEP(Rn=200,RnL=100,qs=0.003,Ts=20,type=1)
RMEP(Rn=300,RnL=100,qs=0.004,Ts=25,I=800,z=8,type=1)

Yangyonghust/RMEP documentation built on Nov. 30, 2021, 11:20 a.m.