# Does the latest version of WRF-CMAQ allow for modeling aerosol-cloud interactions?

**URL:** <https://forum.cmascenter.org/t/does-the-latest-version-of-wrf-cmaq-allow-for-modeling-aerosol-cloud-interactions/4752>\
**Category:** WRF-CMAQ\
**Tags:** cmaq\
**Created:** [March 6, 2024, 2:11am UTC](https://forum.cmascenter.org/t/does-the-latest-version-of-wrf-cmaq-allow-for-modeling-aerosol-cloud-interactions/4752 "2024-03-06T02:11:23Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Rain](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.cmascenter.org/rain/32/1939_2.png) [@Rain](https://forum.cmascenter.org/u/Rain)\
**Post date:** [March 6, 2024, 2:11am UTC](https://forum.cmascenter.org/t/does-the-latest-version-of-wrf-cmaq-allow-for-modeling-aerosol-cloud-interactions/4752/1 "2024-03-06T02:11:23Z")

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Hello, everybody!  
I’m interested in learning if the latest version of WRF-CMAQ is capable of modeling aerosol-cloud interactions. Any references or resources you could share on this topic would be greatly appreciated.  
Thanks!

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**Author:** ![Ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@Ryan](https://forum.cmascenter.org/u/Ryan)\
**Post date:** [March 6, 2024, 9:08pm UTC](https://forum.cmascenter.org/t/does-the-latest-version-of-wrf-cmaq-allow-for-modeling-aerosol-cloud-interactions/4752/2 "2024-03-06T21:08:26Z")

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You can easily search the following atmospheric scientist’s paper:

1. David Wong from US EPA
2. Jia Xing from Tsinghua University
3. Jiandong Wang from NUIST/Tsinghua University
4. Shaocai Yu from Zhejiang University

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**Author:** ![mathur.rohit](https://avatars.discourse-cdn.com/v4/letter/m/48db29/32.png) [@mathur.rohit](https://forum.cmascenter.org/u/mathur.rohit)\
**Post date:** [March 6, 2024, 9:57pm UTC](https://forum.cmascenter.org/t/does-the-latest-version-of-wrf-cmaq-allow-for-modeling-aerosol-cloud-interactions/4752/3 "2024-03-06T21:57:05Z")

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Aerosol cloud interactions have been studied using _developmental versions_ of the WRF-CMAQ model; a couple of examples:  
(1) Yu, S. et al.: Aerosol indirect effect on the grid-scale clouds in the two-way coupled WRF–CMAQ: model description, development, evaluation and regional analysis, Atmos. Chem. Phys., 14, 11247–11285, [ACP - Aerosol indirect effect on the grid-scale clouds in the two-way coupled WRF–CMAQ: model description, development, evaluation and regional analysis](https://doi.org/10.5194/acp-14-11247-2014), 2014.  
(2) Wang, K. et al.: A comparative study of two-way and offline coupled WRF v3.4 and CMAQ v5.0.2 over the contiguous US: performance evaluation and impacts of chemistry–meteorology feedbacks on air quality, Geosci. Model Dev., 14, 7189–7221, [GMD - A comparative study of two-way and offline coupled WRF v3.4 and CMAQ v5.0.2 over the contiguous US: performance evaluation and impacts of chemistry–meteorology feedbacks on air quality](https://doi.org/10.5194/gmd-14-7189-2021), 2021.

However, process representation of these interactions are not currently available in public versions of the modeling system. Please refer to code availability sections of these manuscripts for additional details. A version of the coupled WRF-CMAQ model with the additional indirect aerosol forcing used in the studies above, may be available from Prof. Shaocai Yu [shaocaiyu@zju.edu.cn].

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**Author:** ![wong.david-c](https://avatars.discourse-cdn.com/v4/letter/w/bcef8e/32.png) [@wong.david-c](https://forum.cmascenter.org/u/wong.david-c)\
**Post date:** [March 12, 2024, 4:48pm UTC](https://forum.cmascenter.org/t/does-the-latest-version-of-wrf-cmaq-allow-for-modeling-aerosol-cloud-interactions/4752/4 "2024-03-12T16:48:42Z")

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Hi Rain,

Thanks for your interest in the WRF-CMAQ coupled with indirect effect. Rohit mentioned two papers which were based on an older version of CMAQ, in his last reply. I am working on updating the indirect effect with the latest CMAQ and WRF. Hopefully, it will be available soon.

Cheers,  
David

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**Author:** ![Rain](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.cmascenter.org/rain/32/1939_2.png) [@Rain](https://forum.cmascenter.org/u/Rain)\
**Post date:** [March 14, 2024, 6:44am UTC](https://forum.cmascenter.org/t/does-the-latest-version-of-wrf-cmaq-allow-for-modeling-aerosol-cloud-interactions/4752/5 "2024-03-14T06:44:38Z")

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Thank you for your response! Your tips have provided me with a wealth of valuable information. 🙂

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**Author:** ![Rain](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.cmascenter.org/rain/32/1939_2.png) [@Rain](https://forum.cmascenter.org/u/Rain)\
**Post date:** [March 14, 2024, 6:45am UTC](https://forum.cmascenter.org/t/does-the-latest-version-of-wrf-cmaq-allow-for-modeling-aerosol-cloud-interactions/4752/6 "2024-03-14T06:45:47Z")

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Thank you, sir. I truly appreciate the response you’ve provided—it’s been incredibly valuable to me! 🤝

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**Author:** ![Rain](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.cmascenter.org/rain/32/1939_2.png) [@Rain](https://forum.cmascenter.org/u/Rain)\
**Post date:** [March 14, 2024, 6:47am UTC](https://forum.cmascenter.org/t/does-the-latest-version-of-wrf-cmaq-allow-for-modeling-aerosol-cloud-interactions/4752/7 "2024-03-14T06:47:04Z")

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That’s great to hear! I’m particularly interested in the upcoming release of the WRF-CMAQ model. It will be a valuable tool for my research on aerosol-cloud interactions. 👏
