Mapped Submarine Glacial Landforms, Ice Contact Boundary Points, and Ice Stream Grounding data, BADEX project, Baffin Bay, Greenland margin

There are three ESRI-formatted shapefiles in this data set. Two of the shapefiles present mapping and interpretation of submarine glacial landforms from the Baffin Bay continental slope based on publicly available multibeam bathymetry data and data from cruise AR76-01. One shapefile contains polylines (Subglacial_Landforms_lines_Klotskoetal), one contains polygons (Subglacial_Landforms_Zones_Klotskoetal). The third shapefile (Ice_Contact_Points_Klotskoetal) presents interpretations of the maximum depth of grounded ice during the Last Glacial Maximum, detailed in Klotsko et al. (in prep), which are determined by the ice contact boundary (ICB) geomorphic feature. Depth of ICB points and grounded ice stream features on Greenland outer troughs, as well as the depth of the proposed Boothia-Lancaster Ice Stream grounding line, were extracted from AR76-01 multibeam data or other publicly available bathymetry and seismic reflection data from Baffin Bay. Cruise name or data set source accompanies each point. No depth offset corrections were made for data set discrepancies, but these were few and within a few meters. For ICB points, the geomorphic feature just upslope of the ICB is included. These data sets were generated for the project The Baffin Bay Deglacial Experiment (BADEX). Funding was provided by the U.S. National Science Foundation under awards OCE21-12498, OCE21-12529, OCE21-12536, OCE21-12547, and OCE23-00114.