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Environmental Hydrology Visualization

Environmental Hydrology Visualization. Have: Vis5D SGI Explorer Fluid Tracers VisAD Cave5D nViz GeoVis…. Need: Access to Distributed Large datasets Cross platform Cluster algorithms Lightweight component Auto-data translators Metadata support Heterogeneous format support

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Environmental Hydrology Visualization

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  1. Environmental Hydrology Visualization • Have: • Vis5D • SGI Explorer • Fluid Tracers • VisAD • Cave5D • nViz • GeoVis… • Need: • Access to Distributed Large datasets • Cross platform • Cluster algorithms • Lightweight component • Auto-data translators • Metadata support • Heterogeneous format support • Component Libraries • Real-time GIS/Model • Distance collaboration • Vector/raster • Nested grid

  2. Mississippi RiverWeb Consortium: Computational science in informal education GIS: Terrain, Bathymetry, Land Use Linked data (fisheries, flow, etc) 2D flow models Visualization Flow Modeling in Large Scale Systems Digital River Basin: Multi-user simulation, high-resolution visualization, multi-modal interaction (location detection, touch interface…)

  3. Digital River Basin • Model driven query • User driven query • Composite data • Metadata X 20

  4. Status Report • infrastructure/code development completed since October 1 • Prototype coupled model/visualization application for museum project: • High resolution plasma display • Inter-processor communication • “Single user” highly interactive • VTK/Performer http://www.ncsa.uiuc.edu/Cyberia/RiverWeb/Projects/RWMuseum/products.html http://brighton.ncsa.uiuc.edu/~prajlich/rw/

  5. Status Report: Efforts Underway • Next phase coupled model/visualization (alpha - 12/00) • Multiple high resolution displays • Multiple users • Multi-processor • Full database interaction (postgres) • Coupled model (runoff/channel) • Web portal interface (9/01)

  6. Status Report: Efforts Underway • Re-examination of high-resolution parallel overland flow model (funded outside of PACI EHAT) • kinematic wave equation- time-dependent two dimensional nonlinear problem on a large domain • additive schwartz method to solve the large domain finite difference method to discretize. • Implicit scheme in time direction to solve instability. • First-order Taylor series expansion to linearize the nonlinear algebraic system at each time step. • Scalable parallel preconditioners and Krylov subspace methods including ICC, ILU, block Jacobi and so on to solve the linearized algebraic system.

  7. Projected Impact • What is the current usage of the infrastructure/code? Or what is the projected usage during the next 6 months? • Museum: 100,000 in first 2-3 months • What is the current community interest in such infrastructure? • USEPA Fox River Management • NSF Illinois River … • How broad might the community impact be? • Necessary interest in multiple communities

  8. Interconnections: • What infrastructure that you are developing is dependent on other Alliance or EH infrastructure? • PETSc, HDF, VisBench, Globus (poss.) • What Alliance people outside EH do you interact with? • Data Mining and Visualization (Baker, Welge, Folk, Rajlich, Khakshour, etc.) • EOT (Curtis, Sonin) • Government (Prudhomme, et al.)

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