1. University of North Carolina at Chapel Hill Carolina Environmental Programs Models-3 Adel Hanna Carolina Environmental Program University of North Carolina at Chapel Hill

2. Carolina Environmental Programs Regulatory or Policy User l Need to identify source of a problem, contributing factors, and methods of controlling or alleviating pollutant emissions l Need to understand the relative effectiveness of different controls and potential ramifications of proposed strategies

3. University of North Carolina at Chapel Hill Carolina Environmental Programs Science User l Seek to understand the physical-chemical system, how pollutants are produced, what processes are most important, and pollutant interact l Non trivial problem especially with processes that are complex and non linear l Evaluation (how well the model is representing the real world)

4. University of North Carolina at Chapel Hill Carolina Environmental Programs Models-3 Concepts l One Atmosphere Description of the atmospheric System Multi-scale Multi-pollutant l One Modeling System Flexible and expandable Modular Analysis tools and Data handling l One Community Open Source Multi-user Platform for multiple contributions

5. University of North Carolina at Chapel Hill Carolina Environmental Programs Models-3 Modeling Components l Three Main Components l Sparse Matrix Operator Kernel Emissions (SMOKE) l Community Multi-scale Air Quality Model (CMAQ) l Meteorology Model (MM5, ETA, RAMS,..)

6. University of North Carolina at Chapel Hill Carolina Environmental Programs Models-3; a Vision to the Community Needs l Utilization of HPCC advances towards environmental modeling and decision making l Modular, extensible science implementation l Analysis and visualization Package l Flexible to address more comprehensive atmospheric pollution (PM, Visibility, Toxics) l Multi-scale (Urban, Regional, hemispheric) l Air Quality Forecast l Link to Human Exposure, Ecosystem

7. University of North Carolina at Chapel Hill Carolina Environmental Programs Transport and Chemical Evolution of Sulfate at 850 mb April 20, 1998 April 21, 1998 April 22, 1998 Daily Average

8. University of North Carolina at Chapel Hill Carolina Environmental Programs Transport and Chemical Evolution of Ozone at 850 mb April 21 April 22 April 23 Daily Average

9. University of North Carolina at Chapel Hill Carolina Environmental Programs Six Day Back Trajectories

10. University of North Carolina at Chapel Hill Carolina Environmental Programs CMAS; Technology Transfer l A vision of Community cooperation as means to improving our science understanding while sharing experiences in exercising models for regulatory purposes l From research to application to outreach, CMAS center is to advance the community modeling paradigm through the establishment of a centralized resource to serve the members of the environmental modeling community

11. University of North Carolina at Chapel Hill Carolina Environmental Programs CMAS l Serve as a bridge between various segments of the community l Foster the growth of the developer and user communities l Serve as a clearinghouse of information l Become a hub for education and training about modeling l Develop and market the value of CMAS in order to become self-sufficient

12. University of North Carolina at Chapel Hill Carolina Environmental Programs CMAS Functions l Outreach Developing the user community Promoting value Establish and foster collaborations Create Self Sufficiency l Application Support User Support Training Consultation and model applications

13. University of North Carolina at Chapel Hill Carolina Environmental Programs CMAS Functions (Cont.) l Software Development Plans for External Review, Tracking, and Documenting model versions Maintaining model codes and Documentation Model inputs and outputs l Research Application Driven Model testing, development and evaluation Computational Research and development

14. University of North Carolina at Chapel Hill Carolina Environmental Programs Community Contribution l EPA role in supporting Models-3 and its Potential user Community – Help Desk, training facilities (first year) – Science development and CMAQ releases – Model Evaluation – CMAQ review l External Advisory Committee l Members of the community are developing and sharing new modules

15. University of North Carolina at Chapel Hill Carolina Environmental Programs CMAS 2003/04 l Outreach News letter Quarterly Annual workshop Participation in Conferences l Research Proposal on leading topics CMAQ Review l Applications Training sessions CMAQ, SMOKE, MIMS Advanced Training Off site training l Software Development Protocol for coding standards

16. University of North Carolina at Chapel Hill Carolina Environmental Programs Summary l More than 600 active users representing different sectors of the environmental community l More interactions and communications l International Correspondence (Atmosphere has no boundaries) l CMAQ and SMOKE are among the leading models being used for various modeling applications l Improvements and developments continue