SimNDVI {Ecohydmod}

NDVI simulation

Description

This function simulates the NDVI based on soil moisture and vegetation parameters. Numerical solution.

Usage

SimNDVI(s, sw, sstar, kA, kR, Nmax, Nmin, N0)

Arguments

s

A vector with soil moisture

sw

Soil moisture at wilting point

sstar

Soil moisture below field capacity point

kA

Constant of assimilation

kR

Constant of respiration

Nmax

Maximum NDVI of the vegetation

Nmin

Minimum NDVI of the vegetation

N0

Initial condiction of NDVI. If it is missing, the average of Nmax and Nmin will be used

Details

NDVI simulation

Value

NDVI series

Examples

rain = 10 * RainPoisson(ndays = 365, lambda = 0.05, alpha = 0.60)
s = swb_f(R = rain, Rstar = 3, Emax = 5, Ew = 0.5, Ks = 2000, b = 4.38, Zr = 400,
n = 0.5, sh = 0.01, sw = 0.10, sstar = 0.25, s0 = 0.10, nsteps = 48, gr = T)[,3]
NDVI = SimNDVI(s, sw = 0.10, sstar = 0.35, kA = 0.064, kR = 0.011,
Nmax = 0.93, Nmin = 0.26, N0 = 0.5)