Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/7732
Authors: | Roberts, J. L.* Warner, R. C.* Young, D.* Wright, A.* van Ommen, T. D.* Blankenship, D. D.* Siegert, M.* Young, N. W.* Tabacco, I. E.* Forieri, A.* Passerini, A.* Zirizzotti, A.* Frezzotti, M.* |
Title: | Refined broad-scale sub-glacial morphology of Aurora Subglacial Basin, East Antarctica derived by an ice-dynamics-based interpolation scheme | Journal: | The Cryosphere | Series/Report no.: | 3/5 (2011) | Publisher: | Copernicus Gesellschaft GMBH | Issue Date: | 13-Jul-2011 | DOI: | 10.5194/tc-5-551-2011 | URL: | http://www.the-cryosphere.net/5/551/2011/ | Keywords: | Ice Cryosphere RES systems Ice thickness |
Subject Classification: | 02. Cryosphere::02.02. Glaciers::02.02.04. Ice | Abstract: | Ice thickness data over much of East Antarctica are sparse and irregularly distributed. This poses difficulties for reconstructing the homogeneous coverage needed to properly assess underlying sub-glacial morphology and fundamental geometric constraints on sea level rise. Here we introduce a new physically-based ice thickness interpolation scheme and apply this to existing ice thickness data in the Aurora Subglacial Basin region. The skill and robustness of the new reconstruction is demonstrated by comparison with new data from the ICECAP project. The interpolated morphology shows an extensive marine-based ice sheet, with considerably more area below sea-level than shown by prior studies. It also shows deep features connecting the coastal grounding zone with the deepest regions in the interior. This has implications for ice sheet response to a warming ocean and underscores the importance of obtaining additional high resolution data in these marginal zones for modelling ice sheet evolution. |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2011 Refined broad_Cryosphere.pdf | 2.06 MB | Adobe PDF | View/Open |
WEB OF SCIENCETM
Citations
24
checked on Feb 10, 2021
Page view(s) 5
675
checked on Apr 20, 2024
Download(s) 50
163
checked on Apr 20, 2024