The following map depicts which meteorological stations are considered representative of each county in the state as they apply to the AERMOD air dispersion model. Click on a county to download the latest pre-processed (model-ready) Iowa DNR approved meteorological data for use in AERMOD, or use the links at the bottom of the page.
2005 - 2009 Meteorological Data
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2000 - 2004 Meteorological Data
The 2000 - 2004 data will remain available until 6/30/2012, and may be used for projects with approved modeling protocols until that time. All other projects should use the 2005 - 2009 data available above.

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