evapo_l8t {agriwater}

Actual evapotranspiration (ETa) using Landsat-8 (including thermal bands) images with single agrometeorological data.

Description

Actual evapotranspiration (ETa) using Landsat-8 (including thermal bands) images with single agrometeorological data.

Usage

evapo_l8t(doy, RG, Ta, ET0, a, b)

Arguments

doy

is the Day of Year (DOY)

RG

is the global solar radiation

Ta

is the average air temperature

ET0

is the reference evapotranspiration

a

is one of the regression coefficients of SAFER algorithm

b

is one of the regression coefficients of SAFER algorithm

Value

It returns in raster format (.tif) the Surface Albedo at 24h scale ("Alb_24"), NDVI, Surface Temperature ("LST"), net radiation ("Rn_MJ"), Crop Coefficient ("kc") and Actual Evapotranspiration (evapo).