Reading, A and Halpin, J and Cracknell, M, An interdisciplinary approach to constructing models of the lithosphere and asthenosphere of Antarctica, Geophysical Research Abstracts, 12-17 April, Vienna, Austria, pp. EGU2015-4226. (2015) [Conference Extract]
The models that we construct are of an appropriate resolution for continent scale rheological and seismological simulations. They consist of spatial coordinates including depth, material property values, and also metadata which provide for nominal uncertainty estimates and provenance information for the model values. This approach enables a variety of information to be included in a single model, and well and less-well constrained parts of the model to be handled with rigor. The combination of multiple models, and model uncertainty metadata, into model suites is a liberating one.We maximise the inclusion of information across the disciplines of geoscience such that inaccurate, insufficient and inconsistent data may be evaluated.
Applications of the new models include large-scale ice sheet modelling, including glacial isostatic adjustment studies. They can also be applied to sensitivity testing with respect to new instrumental deployments in Antarctica such as large scale passive seismic experiments. As the international community progresses from reconnaissance studies to understanding the more detailed implications of lithospheric and asthenospheric heterogeneity, in the continent beneath Antarctica, such simulations have two-fold potential. Firstly, in illuminating the relationship between observable and inferable physical properties. Secondly, in optimising the locations of future deployments for the purpose of distinguishing between candidate deep Earth structures. Model suites will be made available for the use of the research community in interoperable data formats.
|Item Type:||Conference Extract|
|Keywords:||remote sensing, seismology, Antarctica|
|Research Division:||Earth Sciences|
|Objective Division:||Expanding Knowledge|
|Objective Group:||Expanding Knowledge|
|Objective Field:||Expanding Knowledge in the Earth Sciences|
|UTAS Author:||Reading, A (Professor Anya Reading)|
|UTAS Author:||Halpin, J (Dr Jacqueline Halpin)|
|UTAS Author:||Cracknell, M (Dr Matthew Cracknell)|
|Deposited By:||IMAS Research and Education Centre|
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