Data and Code for: Hillslope grain size variation across evolving landscapes linked to climate, tectonics, and lithology

This is the python code and output data for the publication: Hillslope grain size variation across evolving landscapes linked to climate, tectonics, and lithology. The code and data incorporate fours cases: uniform case where everything is uniform; rainfall case where the spatial variation in rainfall is incorporated; tectonic case where the spatial variation in rock uplift rates is incorporated; lithology case where the spatial variation in rock erodibility, initial grain size, and fraction of soluble minerals is incorporated.