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We present Bedmap3, the latest suite of gridded products describing surface elevation, ice-thickness and the seafloor and subglacial bed elevation of the Antarctic south of 60?°S. Bedmap3 incorporates and adds to all post-1950s datasets previously used for Bedmap2…
One of the key components of this research has been the mapping of Antarctic bed topography and ice thickness parameters that are crucial for modelling ice flow and hence for predicting future ice loss and the ensuing sea level rise. Supported by the Scientific Committee on Antarctic Research (SCAR)…
There is growing evidence that the Antarctic is increasingly exposed to chemical stressors. Antarctica is impacted by global issues such as climate change and long-range transport of chemicals. Furthermore, expanding tourism and research activities…
Detailed knowledge of the sub-glacial morphology of large ice sheets is essential for … refining ice sheet models and the associated sea-level rise predictions under a warming … environment.
Data from a new regional airborne geophysical survey (ICECAP) has transformed our appreciation of the topography … and glaciology associated with the Aurora Subglacial Basin in East Antarctica. Using these data in conjunction … with numerical ice sheet modelling…
Ice within marine basins of East Antarctica, and their outlets, represent the ultimate limit on sea level change. The region of East Antarctica between the Ross Sea and Wilkes Land hosts a number of major basin, but has been poorly understood. Long range aerogeophysics from US…
Aerogeophysical data obtained by the ICECAP project yield new insights into the basal … topography and evidence of new subglacial lakes within the Aurora Subglacial Basin, East … Antarctica. The new bed elevation map allows us to consider the flow paths of subglacial water.
The Aurora and Wilkes Subglacial Basins are major features of East Antarctica, containing significant regions below sea level. Before the International Polar Year (2007-9), the … extent and geology of the basins were poorly constrained by geophysical data. The IPY project…
The ICECAP project represents a return to the long-range, internationally collaborative … Antarctic aerogeophysics last seen in the 1970’s SPRI/NSF/TUD project. ICECAP is a joint … IPY collaboration between the University of Texas at Austin (funded by NSF), the University of … Edinburgh…
We discuss an upcoming international airborne survey targeting two of the East Antarctica Ice Sheet's (EAIS) enigmatic … subglacial basins. Using a multi-instrumented long range aircraft we will address key issues in the origin and fate of … Earth's largest ice sheet.
Thicknesses of sea ice and snow are key variables in ice-ocean-atmosphere interactions. Sea ice insulates the warm ocean from polar air and controls the heat exchange, which is … determined by its thickness. Also, sea ice thicknesses, together with sea ice extent…
Induction magnetometer data recorded at three closely spaced sites (110km) in Antarctica (mlat -75°) have been examined for ionospheric signatures of the outer magnetosphere and cusp/cleft regions. Cross-phase analysis of the 1–10 mHz band…