Proposed methods to study the Thwaites Glacier, labled with project acronyms/abbreviations. Unifying the projects will be SCO.
ITGC works with the wider ice-sheet community, policy, and palaeo science. Image courtesy David Vaughan.
Project Name Principal Investigator(s) Summary
Geophysical Habitat of Subglacial Thwaites (GHOST) Andrew Smith, Sridhar Anandakrishnan Using seismic and radar methods on the ice, GHOST will investigate and quantify the sediment, hydrology, and bedrock underlying the glacier.
Thwaites Interdisciplinary Margin Evolution - The Role of Shear Margin Dynamics in the Future Evolution of Thwaites Drainage Basin (TIME) Slawek Tulaczyk, Poul Christoffersen Using a variety of techniques such as radar and seismic analysis to understand the margins of the glacier, TIME will investigate what controls its width and speed.
Melting at Thwaites grounding zone and its control on sea level (MELT) Keith Nicholls, David Holland MELT will measure the melting at the ice-ocean interface of the glacier, to understand the processes involved and its potential for triggering increased sea-level rise.
Thwaites-Amundsen Regional Survey and Network Integrating Atmosphere-Ice-Ocean Processes Affecting the Sub-Ice-Shelf Environment (TARSAN) Erin Pettit, Karen Heywood Measuring ocean circulation and thinning beneath the floating part of the glacier using state of the art technology such as AUVs and automated land-ice stations, TARSAN will investigate how the ocean and atmosphere are affecting the glacier
Stability and Instability: Records of External Drivers and Resulting Behavior of Thwaites Glacier (THOR) Robert Larter, Julia Wellner Investigating sediments deposited in the seas near the glacier, THOR will reconstruct past changes in environmental conditions and the glacier’s response to these, thereby adding context to our projections of future change.
Geological History Constraints on the Magnitude of Grounding-Line Retreat in the Thwaites Glacier System (GHC) Brent Goehring, Joanne Johnson Sampling bedrock beneath the ice sheet, GHC will identify if and when the glacier retreated in the past, how it recovered, and how it is currently responding to environmental conditions.
Disintegration of Marine Ice-sheets Using Novel Optimised Simulations (DOMINOS) Doug Benn, Jeremy Bassis The DOMINOS team will use computer modelling to examine calving and associated processes that could cause the rapid retreat and collapse of the glacier.
PROcesses, drivers, Prediction: modeling the History and Evolution of Thwaites (PROPHET) Mathieu Morlighem, Hilmar Gudmundsson By combining existing computer simulations of ice and ocean near the Glacier, PROPHET will improve models to reduce the uncertainty in the projection of the glacier’s behaviour and subsequent contribution to sea-level rise in the future.
The Future of Thwaites Glacier and its Contribution to Sea-level Rise Science Coordination Office Proposal (SCO) David Vaughan, Ted Scambos Working for the eight ITGC projects, the SCO will integrate for efficiency and effectiveness, foster wider scientific collaboration, and deliver crucial science outcomes to key stakeholders.