Table of Contents - HUNAGI

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Maestro in World Wind: Modeling and Simulation Naval Surface Warfare Center, Dahlgren Division (NSWCDD) Clinton.Winfrey@navy.mil Through recent R&D efforts, NSWCDD has prototyped a tool that allows for easy implementation of the DEVS modeling and simulation formalism. Discrete Event System Specification, is a modular and hierarchical formalism for modeling and analyzing general systems that can be discrete event systems. These may be described by state transition tables and continuous state systems which themselves may be described by differential equations, and hybrid continuous state and discrete event systems. DEVS is a timed event system. The DEVS formalism was invented by Dr. Bernard Ziegler, University of Arizona. In one implementation, we use World Wind to visually display the environment. Model, experimental, and simulation frames can all be developed separately via the methods used in this approach.
iGlobe: Bringing Weather and Climate to a 3D Globe Varun Chandola, Oak Ridge National Laboratory The growing understanding of changing climate and its impact on the environment and society has propelled heavy research investment in the area of climate modeling resulting in sophisticated models that can capture multitudes of scenarios and produce realistic forecasts at decadal and century scales and produce simulation outputs which are valuable data sources for understanding climate change impacts. At the same time, path breaking advances in remote sensing technology has enabled measuring and storing weather data at an unprecedented rate. The dense scientific format in which such climate and weather data is stored, NetCDF and HDF, makes it a challenge to visualize as geospatial data in 4D environments such as NASA WorldWind and Google Earth, where they truly belong for effective visualization and analysis in concert with traditional geospatial data sets, such as terrain, infrastructure, demographics, and other data. The Geographic Information Science and Technology (GIST) group at Oak Ridge National Laboratory, in collaboration with researchers from Australia’s Commonwealth Scientific and Industrial Research Organization (CSIRO), University Corporation for Atmospheric Research (UCAR) and University of Kansas has developed iGlobe, an open source desktop application that puts climate research and weather data in a 3D globe where it can be visualized and analyzed with other geospatial data. iGlobe is based on NASA World Wind with significant enhancements to ingest climate model outputs (i.e., NetCDF files) and display them on a 3D globe. The application is capable of handling complex visualizations such as time varying animations, elevations, and vector field rendering. The analytic core of iGlobe allows users to interact with the different data sets using sophisticated data analysis tools to perform complex operations such as anomaly detection, spatiotemporal change detection, signal analysis, and connected component detection that all take place on the ‘back-end’ server. The server-side analysis component of iGlobe allows analysis on high-end servers with the results visualized on the client. Since the analysis outputs are typically magnitudes smaller than the original data sets, the burden on network resources is minimized. chandolav@ornl.gov
Page 1 and 2: World Wind DoD Apps Table of Conten
Page 3 and 4: Agile Client GCCS-J Collaboration i
Page 5 and 6: Advanced Sensors, Data Integration,
Page 7: General Dynamics C4 Systems: Comman
Page 11: DiSTI’s GL Studio and World Wind
Page 14 and 15: Ground Control Station (GCS) Ground
Page 16 and 17: TECHNOLOGY MILESTONES Pursuing Mult
Page 18 and 19: GEOnet: Networked-based Sensor Syst
Page 20 and 21: Terramenta is built on top of the N
Page 22: NEWS Mapgears and MGeospatial join

Table of Contents - HUNAGI

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