run.forhytm: Model core of FORHYTM

Description Usage Arguments Value

Description

Model core of FORHYTM

Usage

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run.forhytm(t, p, u, rh, rg, rssd, elv = 1190, sfc = 150, kappa = 15,
  laimax = 4, gsLen = 180, cBeta = 2, rsmin = 180, jvpd = 0.025,
  topt = 25, ff = 0.386, z = 25, ksimax = 2, jsm = 0.4, tl = 0,
  th = 40, extCoeff = 0.5, jR = 100, rsmax = 5000, alb = 0.1,
  lw = 0.01)

Arguments

t

Vector containing hourly values of air temperature [°C]

p

Vector containing hourly values of precipitation [mm]

u

Vector containing hourly values of wind speed [m/s]

rh

Vector containing hourly values of relative humidity (0...1)

rg

Vector containing hourly values of global radiation [W/m2]

rssd

Vector containing daily values of relative sunshine duration (0...1)

elv

Elevation [m asl]

sfc

Size of plant available soil moisture reservoir [mm]

kappa

e-folding of soil evaporation reduction function [days]

laimax

Leaf Area Index at full foliage cover [m2/m2]

gsLen

Length of leafed season, from bud burst to leaf fall [days]

cBeta

Shape parameter of soil moisture recharge [-]

rsmin

Minimum stomatal resistance [s/m]

jvpd

Parameter indicating stomatal sensitivity to VPD [hPa-1]

topt

Optimal temperature for photosynthesis [°C]

ff

Parameter linking fractional canopy cover to LAI

z

Canopy height [m]

ksimax

Parameter linking canopy interception capacity to LAI

jsm

Parameter indicating stomatal sensitivity to relative extractable water [-]

tl

Minimum temperature for photosynthesis [°C]

th

Maximum temperature for photosynthesis [°C]

extCoeff

Canopy light extinction coefficient

rsmax

Maximum stomatal resistance [s/m]

alb

albedo (0...1)

lw

Typical leaf width [m]

Parameter

indicating stomatal sensitivity to radiation [W/m2]

Value

Returns a data.frame containing daily values of water fluxes (potential transpiration, actual transpiration, soil evaporation, interception evaporation, water yield) and storage (canopy storage, soil moisture, snowpack).


mspeich/forhytm documentation built on May 8, 2019, 9:22 a.m.