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Create SWIR Transformed Reflectance

Source: R/optram_calculate_str.R
optram_calculate_str.Rd

Create SWIR Transformed Reflectance

Usage

optram_calculate_str(BOA_dir, STR_dir = NULL)

Arguments

BOA_dir,

string, the path to the Bottom of Atmosphere bands

STR_dir,

string, output directory for STR rasters, Default is NULL, in which case, the STR_dir will be created alongside BOA_dir

Value

list of string, the path to transformed raster

Note

This function follows: Sadeghi, M., Babaeian, E., Tuller, M., Jones, S.B., 2017. The optical trapezoid model: A novel approach to remote sensing of soil moisture applied to Sentinel-2 and Landsat-8 observations. Remote Sensing of Environment 198, 52–68. doi:10.1016/j.rse.2017.05.041

SWIR Transformed Reflectance is calculated as STR = (1-SWIR)^2 / 2*SWIR SWIR is band 12 (2190 nm) or 11 (1610 nm)

Examples

BOA_dir <- system.file("extdata", "BOA", package = "rOPTRAM")
STR_dir = tempdir()
STR <- optram_calculate_str(BOA_dir, STR_dir)
#> Prepared: 20 STR files