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Latest News

Apr 2018...

IRAP-h View 5.0 Released!

- New Risk Types, Site Parameters
- Automated Tile Maps
- GUI Updates

see release notes

Sep 2017...

AERMOD View 9.5 Released!

- Sensitive Receptor Reports
- Graphical Options Layout
- Tile Maps Update

see release notes

Mar 2017...

AERSCREEN View 2.5 Released!

- New US EPA AERSCREEN, MAKEMET, and AERMOD
- Adjust U-Star option

see release notes

Mar 2017...

CALPUFF View 8.5 Released!

- Updated NED downloads
- Improved model QA

see release notes

 

Modeling Data

Sources of Air Quality Modeling Data
 

See below links to several sources of data for your air quality modeling projects:

Meteorological Data

WebMet.com Data SourceWebMET - Free Meteorological Data

WebMET.com provides free meteorological data for both the United States and Canada! The site not only includes free met data for air dispersion models, but links to meteorological books, videos, software and more. Explore and Learn using WebMET for all things meteorological.

US Met Data
Canada Met Data

Terrain Data

WebGIS - Free Terrain DataWebGIS.com Data Source

WebGIS.com contains extensive map coverage for technical applications including Air Dispersion Modeling, Human Health & Ecological Risk Assessment and Terrain Processing for free! These maps are ready for download in various formats, to facilitate your modeling.

SRTM - Shuttle Radar Topography Mission - Terrain data in resolutions of 90m and 900m covering the entire world and of 30m for the US (FREE):

SRTM1 (U.S. Coverage ~30m)
SRTM3 (Global Coverage ~90m)
SRTM30 (Global Coverage ~900m)

Land Use Data

GLCC - Global Land Cover Characterization - Land Use/Land Cover data in 900Land Use Mapm resolution covering the entire world:

GLCC (Global Coverage ~1km)