This function calculates an LS-factor from Universal Soil Loss Equation (USLE), as described in Schmidt et al. (2019).
SpatRaster, single layer with elevation values. Values should have the same unit as the map units, or in meters when the crs is longitude/latitude
numeric/double, specifying a flow threshold in meters. Default is 120 m
SAGA-GIS geoprocessor object. Run
Rsagacmd::saga_gis(raster_backend = "terra")
Schmidt, Simon, Simon Tresch, and Katrin Meusburger. “Modification of the RUSLE Slope Length and Steepness Factor (LS-Factor) Based on Rainfall Experiments at Steep Alpine Grasslands.” MethodsX 6 (2019): 219–29. https://doi.org/10.1016/j.mex.2019.01.004.