Lakes Environmental Newsletter
Lakes Software Monthly Newsletter


Monthly Newsletter - December 2022

Happy Holidays from Lakes Environmental!

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Our entire staff would like to thank you, our clients, and subscribers, for a successful 2022. Best wishes to you for a wonderful holiday season and a happy and healthy New Year. It’s because of you that we love doing what we do! We look forward to working with you in 2023!

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If you have an urgent matter requiring assistance during the holidays, please e-mail us at and we will respond to your inquiry during regular business hours.

AERMOD View Version 11.2 Released

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Earlier this month, we released AERMOD View Version 11.2. This release includes the following updates:

  • AERMET View: Several important updates including enhancements to specifying Multi-Year surface characteristics.
  • Land Use Creator: Now includes support for Prognostic stations.
  • AERMOD MPI: Added model execution watcher to improve run finalization.
  • Additional Notes: Review the full release notes for a detailed list of all changes and bug fixes.

If you are currently in maintenance for AERMOD View and did not receive an email regarding this update, please contact us at

If you are a user of AERMOD View but are no longer in maintenance, please contact our sales team at for pricing to update your software and ensure that your regulatory agency or industrial clients are using the official EPA AERMOD Version!

Lakes Environmental President Presents at COP27

Dr. Jesse Van Griensven Thé, President of Lakes Environmental was honoured to be asked by Ministerio do Meio Ambiente (MMA), a Brazilian federal environment agency, to speak on Brazil’s behalf at the United Nations’ COP27 recently held in Sharm el-Sheikh.

Jesse provided engineering expertise and advice to MMA to assist them with their efforts to decarbonize the economy. The project’s focus is to use the abundant wind and solar energy in Northern Brazil to generate green hydrogen.

Online AERMOD Course – Feb 14-15, 2023

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Registrations are already rolling in for our 2-day online AERMOD course taking place on February 14 and 15, 2023 from 8:30am to 5:00pm (Central Time – Chicago, USA). The same great course, now from the convenience of your home or office!

Register today!


AERMOD (February 14-15, 2023)



Online AERMOD Course – Mar 21-22, 2023

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Our team will present 2 days of online AERMOD training on March 21 and 22, 2023 from 8:30am to 5:00pm (Central Time – Chicago, USA).

Register today!

Note: Due to the immense popularity of our online courses and small class sizes, we recommend registering and making payment as soon as possible.


AERMOD (March 21-22, 2023)




2023 Course Schedule

Feb 14-15, 2023
Register →

Mar 21-22, 2023
Register →

Apr 18-19, 2023
Register →

May 16-17, 2023
Register →

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Working with Different Model Versions in AERMET View

With each successive update to the AERMOD modeling system published by the U.S. EPA to the Support Center for Regulatory Atmospheric Modeling (SCRAM) website, Lakes Software updates our AERMOD View and AERMET View applications to support the new models. In previous Modeling Tips, we’ve discussed how to choose earlier versions of the AERMOD executable in AERMOD View, but it is also possible to revert to earlier versions of AERMET when using AERMET View.

The newly released AERMET View Version 11.2 – included with all copies of AERMOD View – supports the latest U.S. EPA AERMET model update (version 22112). It also supports backwards compatibility for AERMET versions dating back to 2012 (version 12345). To change the version of AERMET used by the interface, complete the following steps.

Step 1. Open AERMET View, go to the File menu, and select Preferences.

Step 2. The various models available in AERMET View are listed under the EPA Models/Limits section. Select AERMET.

Modeling Tip picture

Step 3.The default executable is AERMOD.EXE which represents the 32-bit version of the most recent US EPA executable (currently 22112). Since the version 18081 release, the EPA has included both 32-bit and 64-bit compilations of the model. If your computer runs a 64-bit operating system, you can choose the X64 model.

Select the drop-down list to see all available model executables.

Modeling Tip picture

Step 4. Users can also select their very own recompiled version of AERMET by selecting the User-Specified radio button. Use the Browse button Modeling Tip picture  to search your computer for the desired executable. When modeling with a User-Specified executable, it is the user’s responsibility to verify all the proper model options are selected.

One reason users may want to revert to an earlier version of AERMET is to support the Upper Air Estimator. This utility is a useful way to produce AERMOD-ready meteorological data in the absence of radiosonde measurements. The U.S. EPA’s AERMET 22112 release features a complete rewriting of the model code, however, which prevents the Upper Air Estimator from working in its current state. Users can continue to use the Estimator by reverting to AERMET 21112 or earlier using the method above.



Clouds Less Climate-Sensitive Than Assumed

December 1, 2022 - Cumulus clouds in trade-wind regions cover nearly 20 percent of our planet, producing a cooling effect. Until recently, it was assumed that global warming would reduce the surface covered by these clouds, amplifying the warming. However, a team around Dr. Raphaela Vogel from Universität Hamburg was able to refute that assumption. Their study has just been released in the journal Nature.

Read more →

Old-Growth Trees More Drought Tolerant Than Younger Ones, Providing a Buffer Against Climate Change

December 1, 2022 - A new analysis of more than 20,000 trees on five continents shows that old-growth trees are more drought tolerant than younger trees in the forest canopy and may be better able to withstand future climate extremes.

Read more →

Additional Environmental News

Visit the Environmental News Network (ENN), the most dependable online environmental news source!



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