This dataset provides a geopackage of the predicted subglacial water flow pathways beneath Whillans Ice Plain, West Antarctica, the contributory Whillans Ice Stream and neighbouring Kamb and Mercer Ice Streams. Flow paths were estimated based on hydropotential gradients using static grids of ice-surface elevation from the REMA mosaic (Howat and others, 2019) and ice thickness from Bedmachine Antarctica version 3 (Morlighem and others, 2020; 2022) from which bed elevation is inferred. Wilson Sauthoff (dataset creator) was funded by NASA award 80NSSC21K0912. Bryony I. D. Freer (project lead) was supported by Natural Environment Research Council (NERC) Satellite Data in Environmental Science (SENSE) Centre for Doctoral Training (grant no. NE/T00939X/1).

This dataset consists of measurements of cosmogenic 14C in quartz for cobbles collected from a series of nunataks (Turtle Rock, Notebook Cliffs, scoria cone) proximal to Mount Murphy, a volcanic edifice located between Pope and Thwaites glaciers, West Antarctica. The cobbles were collected during the 2015-2016 Antarctic field season. The dataset includes 13 cosmogenic nuclide surface exposure ages and all field (location, elevation, shielding, thickness) and analytical laboratory data required to calculate in situ 14C exposure ages. Analytical data includes quartz sample mass, total CO2 liberated from the sample, delta-13C, 14C/12C AMS ratios and 14C/12C AMS ratios of procedural blanks. Funding source: Natural Environment Research Council (NERC): Grants NE/S006710/1, NE/S006753/1 and NE/K012088/1 and National Science Foundation (NSF): Grant: OPP-1738989. The dataset is a component of the "Geological History Constraints" project of the NERC-NSF funded International Thwaites Glacier Collaboration (ITGC).