Ozone concentrations seen through an 

 A VS interface. 



transport water quality models. As part of these efforts, a 

 new volume-rendering algorithm has greatly enhanced the 

 realism of the three-dimensional model data, and more 

 visualization algorithms are under development. 



Networking 



EPA established a 100 Mb/s (FDDI) research network and 

 has provided T1 connectivity to the Environmental 

 Research Center in Georgia and to the Chesapeake Bay 

 Office in IVIaryland. This connectivity provides the band- 

 width needed to satisfy EPA's heterogeneous computing, 

 data management, and collaborative visualization require- 

 ments. In FY 1994 EPA will establish a T3 Internet inter- 

 connect to EPA's National Environmental Supercomputer 

 Center. 



Technology Transfer 



EPA is funding the establishment of a prototype training 

 center and an on-site training program for Federal, state, 

 and industrial personnel, initially to support air quality reg- 

 ulatory decision-making policies. Hands-on training with 

 state-of-the-art environmental assessment techniques will 

 foster competency in high performance computing; users 

 will observe the increasing speed, accuracy, scope, and 

 improved management of environmental assessments 

 available through high performance computing. 



EPA is evaluating the usefulness of multimedia electronic 

 tutor and help approaches, and collaborative computing 

 and visualization to provide expert advice to remote loca- 

 tions. A prototype interactive analysis and visualization 

 system for a workstation environment has been developed 

 to support regulatory decision making at the state level. It 

 uses the Urban Airshed photochemical model and the 

 Applications Visualization System (AVS) software. The 

 pilot user group, the North Carolina Department of 

 Environment, Health, and Natural Resources, accesses 

 the North Carolina Supercomputing Center at Research 

 Triangle Park via a newly established T1 link. In FY 1994 

 the pilot program will be extended to additional Federal, 

 state, and industrial environmental organizations. 



Computational Education 



EPA's HPCC Program helps support EarthVision, EPA's 

 computational science educational program for high 

 school students and teachers. Students prepare propos- 



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