water (version 0.5)

calcSR: Calculates surface reflectance for L7

Description

Calculates surface reflectance from top of atmosphere radiance using the model developed by Tasumi et al. (2008) and Allen et al. (2007), which considers a band-by-band basis.

Usage

calcSR(image.TOAr, sat = "auto", ESPA = FALSE, aoi, incidence.hor, WeatherStation, surface.model)

Arguments

image.TOAr

raster stack. top of atmosphere reflectance image

sat

"L7" for Landsat 7, "L8" for Landsat 8 or "auto" to guess from filenames

ESPA

Logical. If TRUE will look for espa.usgs.gov related products on working folder

aoi

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

incidence.hor

solar incidence angle, considering plain surface

WeatherStation

Weather Station data

surface.model

rasterStack with DEM, Slope and Aspect. See surface.model()

References

Tasumi M.; Allen R.G. and Trezza, R. At-surface albedo from Landsat and MODIS satellites for use in energy balance studies of evapotranspiration Journal of Hydrolog. Eng., 2008, 13, (51-63)

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