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The initial COLDEX aerogeophysical survey of Southern Dome A: Overview and prospects

Authors

Young,  Duncan
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Paden,  John
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kerr,  Megan
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Singh,  Shivangini
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kaundinya,  Shravan
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Buhl,  Dillon
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Greenbaum,  Jamin
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Blankenship,  Donald
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Ng,  Gregory
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kempf,  Scott
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Neff,  Peter
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Fudge,  Tj
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Koutnik,  Michelle
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Severinghaus,  Jeffery
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Brook,  Edward
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Young, D., Paden, J., Kerr, M., Singh, S., Kaundinya, S., Buhl, D., Greenbaum, J., Blankenship, D., Ng, G., Kempf, S., Neff, P., Fudge, T., Koutnik, M., Severinghaus, J., Brook, E. (2023): The initial COLDEX aerogeophysical survey of Southern Dome A: Overview and prospects, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4937


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021337
Abstract
The Center for Oldest Ice Exploration is using a phased approach for locating a stratigraphically intact ice core capturing the mid-Pleistocene climate transition, targeting regions near the South Pole in East Antarctica. In January 2023, we completed a broad, regional airborne survey of the southern flank of Dome A, Antarctica from South Pole Station, imaging the large scale structure of the ice sheet and underlying crust using ice penetrating radar, aeromagnetics and airborne gravity. Based on these results, in 2023/24 we will perform targeted airborne surveys at several subregions at ice thickness length scales characterize candidate sites, which will be used to locate follow-on ground-based high resolution studies. We report on current progress in year 1 data processing, focusing on englacial structure and bed properties, and implications for follow on survey work.