Science Inventory

AIR QUALITY FORECAST DATABASE AND ANALYSIS

Impact/Purpose:

The objectives of this task include: (1) to continuously evaluate and analyze the forecast results to provide diagnostic information on model performance and inadequacies to guide further evolution and refinements to the CMAQ model, and (2) extending the utility of the daily air quality forecast model data being produced by NOAA's National Weather Service (NWS) as part of a NOAA/EPA collaboration in air quality forecasting, to EPA mission-oriented activities. These objectives include developing and maintaining a long-term database of air quality modeling results (ozone and PM2.5), performing periodic analysis and assessments using the data, and making the air quality database available and accessible to States, Regions, RPO's and others to use as input data for regional/local scale air quality modeling for policy/regulatory purposes.

Description:

In 2003, NOAA and EPA signed a Memorandum of Agreement to collaborate on the design and implementation of a capability to produce daily air quality modeling forecast information for the U.S. NOAA's ETA meteorological model and EPA's Community Multiscale Air Quality (CMAQ) model have been linked together to form the core of this forecast system. The initial capability, implemented in September 2004, provided ground level ozone predictions over the Northeastern United States. A program of phased development and testing has and will continue to expand this capability: as of August 31, 2005, the operational domain was extended over the entire eastern United States. Over the next five years the model domain will be expanded to the continental U.S., and PM2.5 will be added to the model forecast capability; developmental testing of both these capabilities has already been initiated. This task leverages this on-going work between NOAA and EPA by (1) building an air quality forecast database at EPA/RTP consisting of the daily meteorological, emissions, and air quality outputs from the Eta-CMAQ forecast system, (2) making these data available to the air quality management community (EPA/OAR, RPOs, States, etc.), and providing value-added analyses of the data contained in this long-term database, and (3) contributing to the enhancement and further development of the CMAQ model through continuous diagnostic analyses of model forecast results.

Record Details:

Record Type:PROJECT
Start Date:10/01/2003
Projected Completion Date:09/01/2007
OMB Category:Other
Record ID: 80864