This $184,798 Project Grant award from the National Science Foundation's Polar Programs (CFDA 47.078) will support collaborative research to investigate temporal variations in the glacial and subglacial structures of Antarctica. The research aims to enhance understanding of how the continent's ice sheets are responding to climate change and contributing to sea level rise. Key activities include analyzing seismic data from over 600 stations in Antarctica to study seasonal and long-term changes in...
This $732,120 Project Grant from the National Science Foundation Division of Earth Sciences will fund research into the effects of three-dimensional and non-Newtonian mantle viscosity on relative sea-level changes and deglaciation history since the Last Glacial Maximum approximately 26,000 years ago. The University of Colorado will deliver three key products under this award. First, the research team will further develop their open-source computational modeling package CITCOMSVE to more...
The National Science Foundation Division of Polar Programs awarded a $383,202 project grant to The Washington University to conduct research on the thermal and compositional structure of the Antarctic mantle from July 1, 2022 to June 30, 2024. Under the grant, the university will use probabilistic joint inversion of seismic, gravity, and topography data along with petrological modeling to map the three-dimensional thermal and compositional structure of the Antarctic mantle from the surface...
This $578,675 federal Project Grant award from the National Science Foundation's Polar Programs (CFDA 47.078) supports a collaborative research project at the University of Chicago exploring the dynamics of ice shelf boundaries in Antarctica. The research aims to better understand how compressive ice shelf boundaries, where floating ice shelves flow against obstructions, generate resistive forces that slow the flow of inland ice into the ocean. The project will feature on-site glaciological...
This National Science Foundation (NSF) Project Grant, awarded under the Polar Programs (CFDA 47.078) federal grant program, will support research exploring the dynamics of ice shelf compression along the coast of Antarctica's Ross Island. The $368,061 grant, awarded to the University of Colorado, will fund field measurements, remote sensing, and numerical modeling to better understand how the ice shelf's compressive flow against obstructions like islands and grounded ice influences sea level...
This $362,718 National Science Foundation Division of Polar Programs Project Grant will support research to improve model representations of Antarctic ice-shelf instability and break-up due to surface meltwater processes. The Regents of the University of Colorado will receive funding from January 1, 2023 through December 31, 2025 to develop a new component for the continental-scale Ice-Sheet and Sea-Level System Model (ISSM) capable of simulating surface meltwater-induced flexure, fracture,...
This $199,162 Project Grant award from the National Science Foundation's Polar Programs (CFDA 47.078) will support studies of interrelated geospace phenomena observed at Southern high latitudes through a coordinated and collaborative effort. The funding will be used to deploy and maintain a suite of geospace instrumentation at the U.S. Antarctic stations of South Pole, McMurdo, and Palmer. This includes ground-based magnetometers, ELF and VLF receivers, imaging and broadband riometers,...
This Project Grant award from the National Science Foundation's Polar Programs (CFDA 47.078) provides $325,213 to The Trustees of Columbia University in the City of New York to investigate the role of meltwater in governing the geophysical properties of deforming icy systems. The research aims to create new flow laws that explicitly incorporate the effects of meltwater, which is critical for improving models of glacial ice flow and sea level rise as the climate warms. The project will employ...
This National Science Foundation (NSF) Integrative Activities (CFDA 47.083) project grant, valued at $286,102, will fund research at the University of North Dakota (UND) to develop advanced ice flow modeling capabilities using graphics processing units (GPUs). The goal is to better assess the Antarctic ice sheet's contribution to sea level rise and its sensitivity to climate change uncertainties. Specifically, the principal investigator and a graduate student will investigate an accelerated,...
The National Science Foundation Division of Polar Programs awarded $696,481 under the Polar Programs (CFDA 47.078) federal grant program to the Colorado School of Mines from August 1, 2022 to July 31, 2027. The award will support research leveraging over two decades of existing field data from Antarctica to investigate ice stream stagnation processes and test hypotheses about how this occurs. The grantee will reprocess datasets from five prior NSF-funded projects using modern geophysical methods...
This $377,603 Project Grant award from the National Science Foundation's (NSF) Polar Programs (CFDA 47.078) will fund research by the University of Colorado to investigate the effects of transient and non-Newtonian mantle viscosity on glacial isostatic adjustment (GIA) processes and their implications for GPS observations in Antarctica. The project aims to build an accurate and efficient computer model to study the displacement and deformation of the Antarctic crust and mantle in response to recent ice melting, including implementing a Burgers transient creep rheology into the open-source CITCOMSVE modeling package. The University of Colorado will use the model to interpret GPS measurements of surface displacements in West Antarctica, place constraints on mantle viscosity and deformation mechanisms, and predict future land displacement in Antarctica. This work has direct implications for understanding global sea level change and Greenland ice sheet dynamics. No sub-awards are planned under this grant, which runs from January 1, 2024 to December 31, 2026.