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Applications of high performance computing, grid and data technologies to computational geodynamics in Australia
thesisposted on 14.02.2017, 00:18 by Mason, Wendy Glenys
This thesis demonstrates and examines computational geodynamics research workflows and outcomes, highlighting improved efficiency and collaboration through facilitation of and streamlined access to key resources. The influence of a buoyant oceanic plateau or mantle plume head interacting with a subduction zone was investigated by conducting three-dimensional numerical simulations at High Performance Computing (HPC) facilities. Model results reveal that these buoyant features can play a significant role in the geodynamics of a subduction zone. In the region of a strongly buoyant plateau or plume head, for a weak slab local trench advance results in an arcuate trench shape and a tear forms in the subducted portion of the slab. The slab tear provides a potential conduit for plume material to transfer to the overriding plate, and local trench advance associated with a large strongly buoyant plume head may contribute to orogenesis. Contributions made to the development of a customised grid compute job submission client template have reduced uptake barriers, enabled easier access to and increased awareness of the geodynamics software used. Participation in the development of software behind a national data sharing service used to share model data with collaborators is also identified as of benefit to the wider Australian geoscience research community.