Datasets accompanying manuscript: A vast valley network beneath the Greenland Ice Sheet

This repository contains the datasets which accompany the code for the manuscript "A vast valley network beneath the Greenland Ice Sheet". This dataset presents subglacial topography mapped beneath the Greenland Ice Sheet using high-resolution observations of the ice sheet surface and Ice Flow Perturbation Analysis (IFPA) code adapted for Greenland. This repository contains: (1) subglacial topography mapped using IFPA (raw IFPA output and blended+radar-corrected topography), error estimates, and rebounded topography as rasters, (2) a "flow-aware" hillshade model of the ice sheet as a raster, (3) all traced lineations from the blended+radar-corrected subglacial topography as shapefile polylines, (4) automated stream network derived from the rebounded topography as shapefile polylines, (5) automated stream network branching angles as shapefile points, (6) all traced edges of disrupted basal ice where the IFPA method output is disfavored in the blended+radar-corrected topography. 

The code for pre-processing data, IFPA, and data analysis can be found in the accompanying Github repository, available at DOI: