DNR News Releases

Search for a News Release

Press/Media inquiries: PIO@dnr.iowa.gov

DNR News Releases

Archive by tag: AERMODReturn

Updated Meteorological and Elevation Data Available for Use in Air Dispersion Modeling

• 5/8/2023 3:49:00 PM
• View Count 2229

When the EPA released updates to the AERMOD modeling system on June 27, 2022, they included updates to AERMET, the preprocessor used to generate meteorological data for use in AERMOD.

Updated Meteorological Data Available for Use in Air Dispersion Modeling

• 8/13/2021 1:47:00 PM
• View Count 1379

When the EPA released updates to the AERMOD modeling system on May 11, 2021, they included updates to AERMET, the preprocessor used to generate meteorological data for use in AERMOD.

Update to Meteorological Data Used for Dispersion Modeling

• 5/3/2018 10:49:00 AM
• View Count 3099

On April 24, 2018, the EPA finalized updated versions (v18081) of the air dispersion modeling software AERMOD, AERMAP and AERMET.

Dispersion Modeling Data and Guidance Updates Available for Use

• 12/4/2015 9:28:00 AM
• View Count 4177

The DNR has updated the pre-processed meteorological data for AERMOD, the default background concentrations, and various guidance documents. Projects with approved protocols that include approval to use the old data, and modeling analyses submitted prior to December 4, 2015, will not have to use the new data. Applicants submitting new projects on or after December 4 should begin using the updated data and guidance immediately. The updates are summarized below.