HR: 09:45h
AN: SF31B-08    [Abstracts]
TI: The Role of Grid Computing in the Geosciences: Developing a 3D Seismic Waveform Propagation Tool for Seismologists and EarthScope Research
AU: * Seber, D
EM: seber@sdsc.edu
AF: San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Dr, MC 0505, La Jolla, CA 92093 United States
AU: Kaiser, T
EM: tkaiser@sdsc.edu
AF: San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Dr, MC 0505, La Jolla, CA 92093 United States
AU: Youn, C
EM: cyoun@sdsc.edu
AF: San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Dr, MC 0505, La Jolla, CA 92093 United States
AU: Santini, C
EM: csantini@sdsc.edu
AF: San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Dr, MC 0505, La Jolla, CA 92093 United States
AU: Greer, D
EM: dsg@sdsc.edu
AF: San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Dr, MC 0505, La Jolla, CA 92093 United States
AU: Larsen, S
EM: shawn@s109.llnl.gov
AF: Lawrence Livermore National Lab, P.O.Box 808, L-646, Livermore, CA 94550 United States
AU: Glassley, B
EM: glassley@llnl.gov
AF: Lawrence Livermore National Lab, P.O.Box 808, L-646, Livermore, CA 94550 United States
AB: Advances in the area of information technology (IT) have started to have a significant impact on how geoscientists conduct their daily research activities. Integrated and coordinated resource sharing in the areas of Grid computing, web/grid services, semantic data integration, information management and ontologies along with national computational grids such as TeraGrid now provide tremendous opportunities for geoscientists to conduct novel and efficient research in many areas of the geosciences. One of the national scale projects in this area is the GEON Cyberinfrastructure for the Geosciences Project funded by the NSF. As part of GEON's grid computing environment we have started developing a grid-enabled application (SYNSEIS - SYNthetic SEISmogram generation tool) to help seismologists as well as any other researchers calculate synthetic 3D regional seismic waveforms using a well-tested, finite difference code, E3D, developed by the Lawrence Livermore National Laboratory. SYNSEIS is built as a grid application and accesses distributed data centers and large computational clusters minimizing the requirements needed to conduct such advance calculations. With SYNSEIS users only need to have access to the Internet and a browser. The entire system is web-based and is accessible from the GEONgrid portal web page (www.geongrid.org). It is built using a service-based architecture and each sub-component in the system is also exposed as a web service, allowing multiple use scenarios for each component if other researchers choose to re-use some of the resources. It provides an interactive user interface with mapping tools and event/station/waveform extraction tools that allow users to seamlessly access IRIS Data Management Center's archives. Though the system currently accesses one 3D crustal model across the US, when more models become available they will be incorporated into the system. Users are able to interactively set their study region, retrieve seismic event and station locations, extract waveforms on the fly for any selected event-station pair, and compute a synthetic seismogram using built in tools. As high performence compute engines, SYNSEIS uses national-scale TeraGrid supercomputer centers, hiding all complexities and difficulties related to account management, cpu allocation, and software installation. The system is designed to be used in day-to-day activities of researchers, especially those of EarthScope scientists who will be accessing data from hundreds of stations everyday and need to process the data in a timely fashion.
UR: http://www.geongrid.org
DE: 8120 Dynamics of lithosphere and mantle--general
DE: 7200 SEISMOLOGY
SC: Special Focus: Advances in Data Acquisition, Management, Analysis and Display [SF]
MN: 2004 AGU Fall Meeting