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Upslope area functions

version (292 KB) by Steve Eddins
Functions for computing and visualizing upslope area, influence map, dependence map


Updated 01 Sep 2016

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A collection of functions for calculating the upslope area and related measurements for a digital elevation model (DEM).
Based on the method of Tarboton.

See also the upslope area postings on my image processing blog, March-August 2007,

Requires Image Processing Toolbox.

Functions include dem_flow, dependence_map, facet_flow, fill_sinks, flow_matrix, influence_map, pixel_flow, postprocess_plateaus, upslope_area, vis_dem_flow, and vis_map.

Includes a sample DEM data set.

Cite As

Steve Eddins (2022). Upslope area functions (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2007a
Compatible with any release
Platform Compatibility
Windows macOS Linux

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