1. 1 © 2014 Electric Power Research Institute, Inc. All rights reserved. Naresh Kumar, Ph.D., MBA Senior Program Manager Electric Power Research Institute CMAS Developer/User Meeting Chapel Hill, NC October 28, 2014 Capabilities of a Future Air Quality Modeling System

2. 2 © 2014 Electric Power Research Institute, Inc. All rights reserved. Fully Integrated System In-line calculations of meteorology, emissions, air quality, model sensitivities New architecture –Do we still need Fortran 90? –Can we achieve an order of magnitude or more speed- up? –Graphical User Interface

3. 3 © 2014 Electric Power Research Institute, Inc. All rights reserved. Air Quality at Multiple Resolutions Global, regional, and local –Either use adaptive grids or user-specified grids –No need to run multiple models

4. 4 © 2014 Electric Power Research Institute, Inc. All rights reserved. Latest Physics and Chemistry Improvements in physics and chemistry modules needed –Heterogeneous phase chemistry –Secondary organic aerosol –Boundary layer physics –Removal processes –Your favorite module Plug and play (full modularity) –Ability to add new chemistry and physics options without extensive rewiring

5. 5 © 2014 Electric Power Research Institute, Inc. All rights reserved. Ensemble Modeling Different models can give different results including different policy outcomes Can an ensemble of models give more robust results? Ability to create an ensemble from a single modeling system given multitude of physics and chemistry options