AWMA Modeling Specialty Conference

Posted by on Thursday, April 28th, 2022 in Newsletters

What’s Happening Now


EPA News

EPA RSL Modelers’ Workshop – EPA is looking to hold its annual Regional, State and Local Dispersion Modelers’ Workshop sometime in the mid-late July 2022 timeframe. This event is currently planned to be an online event. Keep watching SCRAM for details.

New AERMOD coming soon – We also understand that EPA is planning to release its 2022 version of AERMOD in the June 2022 timeframe. As soon as it comes out, we’ll be updating BEEST to incorporate it.

Conferences and Workshops

As you may have seen, we’re starting to see more face-to-face meetings and conferences as we come out of the pandemic. We’ve got some good ones to share with you:

2022 Modeling Specialty Conference – The next AWMA modeling specialty conference will be held September 13‑15, 2022. This conference (dubbed “Guideline on Air Quality Models: Developing the Future”) will be held at the Sheraton Imperial Hotel in Research Triangle Park, North Carolina. This will be an in-person conference. For more information about the conference, go to A&WMA Air Quality Models Conference. To submit an abstract, you can check out Call for Abstracts. The deadline for submitting abstracts is June 3, 2022. We hope to see you at the conference!

AWMA ACE 2022 – The AWMA’s Annual Conference and Exhibition (ACE) 2022 is back to being an in-person event and will be held in San Francisco, CA from June 27 to June 30, 2022 at the Hyatt Regency San Francisco. Check A&WMA Annual Conference 2022 for conference details.

AWMA ACE 2023 is slated to be held in Orlando, FL.

AWMA is also sponsoring webinars and you can find out more about them at

Texas Environmental Trade Fair – It’s back! The 2022 Texas Commission on Environmental Quality’s (TCEQ’s) Environmental Trade Fair is set to go live and in‑person May 10‑11, 2022 at the Austin Convention Center in Austin, Texas. There will be sessions on air and water permitting, waste management, oil/gas, and more! Providence will be there, so come by and see us at booth #320 in the Exhibit Hall. For more information on registration, agenda, etc., go to Environmental Trade Fair and Conference.

If your company, organization, agency, state, etc. has an upcoming modeling or air quality-related event (virtual or otherwise) and you’d like it publicized in Providence/Oris Notes, please send that information to us at, and we’ll be happy to include it.



BEEST 12.07 is now out and includes the following:

  • Updated BEEST based on new keywords and alpha options found in AERMOD 21112
  • Added a warning to DTA Diagnostics when filenames contain characters that cause AERMOD to crash
  • Fixed bug where DTA Diagnostics screen says that there’s a duplicate average/group when there are multiple MAXIFILE output files
  • Raised the limit on the number of partitions for BeestXpress to 99
  • Added a search text box to the Find form opened from the right-click menu
  • Included a new version of WindRose

We presented a webinar on version 12.07 on January 11, 2022. If you missed it, you can watch the recording here.

As always, users in maintenance can download the most recent version of BEEST from Support → Software Updates.

Go BEEST Mode face masks are here! These stylish and functional masks will be the perfect complement to your Go BEEST Mode t-shirt. These are washable/reusable and are a one size fits all. So get yours today by sending your request to

And of course, we still have plenty of Go BEEST Mode t-shirts, too! You can also request one of those by emailing us at

AerScreen for Windows

AerScreen for Windows 4.02 is now out. This update has the following enhancements:

  • Includes AERSCREEN 21112 and AERMOD 21112
  • The Adjust U* option has been enabled by default
  • The website for downloading terrain data files has been updated
  • The user manual for Terrain Files Converter has been updated

Users in maintenance can download the most recent version of AerScreen for Windows from Support → Software Updates.


AERMOD Wizard 1.07 is out! This update has the following enhancements:

  • Allows you to download and process monitoring data for NOx
  • Allows you to download EPA monitoring data published in November 2021
  • Displays elevations for surface and upper air stations in the pop-up window
  • Warns you when data collection frequency changes within a monitoring data file
  • Allows you to set a custom radius when drawing circles around met stations, sources and monitors
  • Adds the ability to display sources from the National Emissions Inventory

The last one is very significant, as it allows you to quickly calculate emission totals within a defined radius of both an emissions source and a candidate ambient monitor. This becomes very useful when trying to identify a monitor for background purposes.

We presented a webinar on this exciting new version of AERMOD Wizard on March 24, 2022. If you missed it, you can watch the recording here.

Users in maintenance can download the most recent version of AERMOD Wizard from Support → Software Updates.

Modeling Tip of the Month

While BEEST has some great importing tools – e.g. generic AERMOD input files, Google Earth KML/KMZ files, etc. – it also has the ability to export emission source data and discrete receptor data. Click File → Export on he menu bar and select either “Sources to a DOS Source File” or “Discrete Receptors to a DOS Receptor File”. BEEST creates a file with sources or discrete receptors extracted from your BEEST file. You can then view the file in a text editor or Excel.


We want to note that many folks use our classes as credit toward professional engineer continuing education requirements. Check with your state’s licensing board or the National Society of Professional Engineers (see here or here) for more information on what is required.

AERMOD Modeling for Permits

Our next AERMOD Modeling for Permits class will be August 23-24, 2022 and will be online. If you are wanting to get started in modeling, then this class is for you!

To register for AERMOD Modeling for Permits, click here.

Advanced AERMOD

Our next Advanced AERMOD class will be August 25-26, 2022 and will also be online.

Advanced AERMOD covers topics that are near and dear to modelers, such as:

  • NAAQS modeling for 1-hour NO2, 1-hour SO2 and 24-hour PM2.5 (including MaxDCont Viewer)
  • Meteorological data processing with AERMET/AERMINUTE/AERSURFACE
  • Changes related to the new Appendix W (Guideline on Air Quality Models)
  • MAXIFILE and ARRAY2 processing
  • AERMOD Wizard and its uses

To register for Advanced AERMOD, click here.

Modeling for Non-Modelers

Given the importance that modeling plays in demonstrating compliance, we think that all stakeholders of the air quality permitting team (client/applicant, permit application preparer, modeler, attorney, etc.) need to have a basic understanding of air quality modeling. Do you know a manager, an attorney, or a client who knows just enough about dispersion modeling to be dangerous? Wouldn’t it be better if that person knew enough about dispersion modeling to understand the basic modeling process and regulatory drivers, knew how to interpret modeling results, and knew when it was necessary to bring a modeling expert into the decision-making process? If so, our Modeling for Non‑Modelers class is for them. This one‑day class doesn’t get into the nitty gritty of running the model, but it does familiarize students with enough of the process so that they can make informed decisions when it comes to dispersion modeling.

Our next Modeling for Non‑Modelers class will be held Thursday, May 19, 2022 and will be presented online. To register for the class, go here.

On-demand Meteorological Data Processing webinar

We are about to launch a new training option – on-demand webinars. The first of these to be released will be “Meteorological Data Processing for AERMOD”. Look for it at sometime in May.

Don’t forget, if our schedule of classes doesn’t mesh with your schedule, or if you have several people that need to be trained at once, contact us about setting up your own onsite or online class.

2022 Providence/Oris class schedule

Here are the remainder of our scheduled 2022 AERMOD classes:

AERMOD Modeling for Permits
December 6-7 – online

Advanced AERMOD
December 8-9 – online



If you’ve never used our super-fast BeestXpress before, now is the time. We have just released a brand new on-demand webinar that steps you through the process of setting up an account and sending off your first BeestXpress run. You can view the webinar here. New BeestXpress users can complete their first run with up to 50 partitions absolutely FREE. Instructions about receiving the free run are given at the end of the webinar.

BeestXpress users have some great system enhancements to work with:

  • The “Job Details” webpage now displays the pollutant being modeled;
  • The “Job Details” webpage now displays run progress for MAXDCONT calculations;
  • Modeling runs with multiple partitions now include a combined AERMOD input file (*.DTA) in the output .ZIP file;
  • Added an option to the “Submit Job” webpage that affects modeling runs with multiple partitions: the intermediate output files created by each partition can be omitted from the output .ZIP file
  • The “Job Search” webpage now includes the option to search by project number
  • Users have access to up to 50 partitions per AERMOD run

To date, BeestXpress has processed over 450,000 AERMOD runs.

BeestXpress users can log on at to take advantage of our AERMOD “force multiplier”. That AERMOD run that might have taken a day or two to process on your desktop computer can finish in an hour or less on BeestXpress. When time is money, BeestXpress is the best modeling return on investment there is!

BeestXpress now runs AERMOD 21112.

Meteorological Data Processing Services

Do you need AERMOD-ready meteorological data? If so, we can help! Whether it’s running national weather service data or on-site monitor met data through the AERMET/AERMINUTE system, Providence has the background, know-how, and experience to have your data processed and ready for you ASAP. If you’d like more information, contact us at or

Consulting Solutions

One thing that we’re very proud of is the depth and range of our modeling experience and expertise. The kinds of air quality models we’ve used include all types, ranging from simple screening tools like SCREEN and AERSCREEN to plume models like ISC and AERMOD to CalPuff. The types of analyses include basic Significant Impact Level, NAAQS, PSD increment consumption, Class I analyses, air toxics, and SIP attainment demonstrations. So, we’ve seen it all. To that end, should you or your clients need additional modeling assistance or just a second set of eyes to QA or peer review your modeling (ranging from initial protocol up to final submission), we stand ready to help. Feel free to contact us at (512) 258-8855, (828) 628-0634 or



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May 10-11, 2022
TCEQ Environmental Trade Fair
Austin, TX

May 19, 2022
Modeling for Non-Modelers

June 27-30, 2022
San Francisco, CA

August 23-24, 2022
AERMOD Modeling for Permits

August 25-26, 2022
Advanced AERMOD

September 13-15, 2022
AWMA Modeling Conference
Research Triangle Park, NC