Tankersley, Matthew; Horgan, Huw J; Smith Siddoway, Christine S; Caratori Tontini, Fabio; Tinto, Kirsty (2022): Basement topography and sediment thickness beneath Antarctica's Ross Ice Shelf imaged with airborne magnetic data [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.941238
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Abstract:
Depth to the magnetic basement beneath Antarctica's Ross Ice Shelf was determined from Werner deconvolution of ROSETTA-Ice airborne magnetic data. This process was constrained by offshore seismic data which was tied to the Ross Ice Shelf with Operation Ice Bridge IceBridge airborne magnetic data. Using a sub-ice shelf bathymetry model, we calculated the thickness of non-magnetic cover sediments above the basement. This dataset contains NetCDF grids, for both Ross Ice Shelf and Ross Embayment extents, of basement elevations and sediment thicknesses, as well as their accompanied upper and lower uncertainties. Also included are profiles of all ROSETTA-Ice flight lines, showing Werner deconvolution solutions and the resulting magnetic basement. Basement solutions before gridding are available in a text file.
Code for the creation and processing of all the data here is available at Github, through the following link: https://doi.org/10.5281/zenodo.6499863.
Keyword(s):
Antarctica; Basement; Crary Ice Rise; geology; geophysics; Geothermal heat flux; Ice shelf; landscape evolution; magnetics; Paleotopography; rifting; Roosevelt Island; Ross Embayment; Ross Ice Shelf; sediment; Siple Coast; Siple Dome; Subglacial sediments; Terror Rift; Werner deconvolution; West Antarctic Rift System
Supplement to:
Tankersley, Matthew; Horgan, Huw J; Smith Siddoway, Christine S; Caratori Tontini, Fabio; Tinto, Kirsty (2022): Basement topography and sediment thickness beneath Antarctica's Ross Ice Shelf. Geophysical Research Letters, https://doi.org/10.1029/2021GL097371
Further details:
Lindeque, Ansa; Gohl, Karsten; Wobbe, Florian; Uenzelmann-Neben, Gabriele (2016): Preglacial to glacial sediment thickness grids for the Southern Pacific Margin of West Antarctica. Geochemistry, Geophysics, Geosystems, 17(10), 4276-4285, https://doi.org/10.1002/2016GC006401
Morlighem, Mathieu; Rignot, Eric; Binder, Tobias; Blankenship, Donald D; Drews, Reinhard; Eagles, Graeme; Eisen, Olaf; Ferraccioli, Fausto; Forsberg, René; Fretwell, Peter; Goel, Vikram; Greenbaum, Jamin S; Gudmundsson, Hilmar; Guo, Jingxue; Helm, Veit; Hofstede, Coen Matthijs; Howat, Ian M; Humbert, Angelika; Jokat, Wilfried; Karlsson, Nanna Bjørnholt; Sang Lee, Won; Matsuoka, Kenichi; Millan, Romain; Mouginot, Jeremie P; Paden, John D; Pattyn, Frank; Roberts, Jason L; Rosier, Sebastian H R; Ruppel, Antonia; Seroussi, Hélène; Smith, Emma Clare; Steinhage, Daniel; Sun, Bo; van den Broeke, Michiel R; van Ommen, Tas D; van Wessem, Jan Melchior; Young, Duncan A (2020): Deep glacial troughs and stabilizing ridges unveiled beneath the margins of the Antarctic ice sheet. Nature Geoscience, 13(2), 132-137, https://doi.org/10.1038/s41561-019-0510-8
Tankersley, Matthew (2022): mdtanker/RIS_basement_sediment: v2.0. Zenodo, https://doi.org/10.5281/zenodo.6499863
Coverage:
Latitude: -81.484000 * Longitude: -177.653000
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File content | Content | Tankersley, Matthew | |||
| 2 | Binary Object | Binary | Tankersley, Matthew |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
24 data points