SimNDVI {Ecohydmod} | R Documentation |
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)
[Package Ecohydmod version 1.0.0 Index]