Basement topography and sediment thickness beneath Antarctica's Ross Ice Shelf imaged with airborne magnetic data ...

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 dat...

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Bibliographic Details
Main Authors: Tankersley, Matthew, Horgan, Huw J, Smith Siddoway, Christine S, Caratori Tontini, Fabio, Tinto, Kirsty
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
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
File content
Binary Object
Antarctic
Siple
Antarc*
Ice Shelf
Online Access:https://dx.doi.org/10.1594/pangaea.941238
https://doi.pangaea.de/10.1594/PANGAEA.941238
Description
Summary: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. ...

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