water (version 0.5)

netRadiation: Estimates net radiation

Description

This function estimates net radiation considering a surface radiation balance. Equations use the information from the image, in addition of measurements of actual vapor pressure and altitude.

Usage

netRadiation(LAI, albedo, Rs.inc, Rl.inc, Rl.out)

Arguments

LAI
raster layer with leaf area index. See LAI()
albedo
broadband surface albedo. See albedo()
Rs.inc
incoming short-wave radiation
Rl.inc
incomin long-wave radiation
Rl.out
outgoing long-wave radiation

References

R. G. Allen, M. Tasumi, and R. Trezza, "Satellite-based energy balance for mapping evapotranspiration with internalized calibration (METRIC) - Model" Journal of Irrigation and Drainage Engineering, vol. 133, p. 380, 2007