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water (version 0.8)

soilHeatFlux: Estimates Soil Heat Flux

Description

This function implements models to estimate soil heat flux for different surfaces and considering different inputs.

Usage

soilHeatFlux(image, Ts, albedo, LAI, Rn, aoi, method = "Tasumi")

Arguments

image

surface reflectance image

Ts

Land surface temperature. See surfaceTemperature()

albedo

broadband surface albedo. See albedo()

LAI

raster layer with leaf area index. See LAI()

Rn

Net radiation. See netRadiation()

aoi

area of interest to crop images, if waterOptions("autoAoi") == TRUE will look for any object called aoi on .GlobalEnv

method

method used for the G estimation. Currently implemeted are "Tasumi" for Tasumi,2003 or "Bastiaanssen" for Bastiaanssen, 2000

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

See Also

Other net radiation related functions: LAI, METRICtopo, SWtrasmisivity, albedo, incLWradiation, incSWradiation, netRadiation, outLWradiation, solarAngles, surfaceTemperature