Data files and scripts necessary to replicate results from Nature Communications article entitled "Downstream changes in river avulsion style are related to channel morphology" by Valenza, J., Edmonds D., Hwang, T., and Roy, S. Files include annual composited, tasseled cap transformed geoTIFFs, parent and avulsion channel masks, and Matlab and Google Earth Engine scripts to produce and process data.See included Supplementary_Data1_Valenza_etal for details on file application, and comments within included scripts for further instruction