# Copernicus (CAMS) boundary conditions - CMAQv5.3

**URL:** <https://forum.cmascenter.org/t/copernicus-cams-boundary-conditions-cmaqv5-3/3666>\
**Category:** CMAQ\
**Created:** [October 28, 2022, 4:05pm UTC](https://forum.cmascenter.org/t/copernicus-cams-boundary-conditions-cmaqv5-3/3666 "2022-10-28T16:05:02Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![matthieupom](https://avatars.discourse-cdn.com/v4/letter/m/839c29/32.png) [@matthieupom](https://forum.cmascenter.org/u/matthieupom)\
**Post date:** [November 9, 2022, 5:50pm UTC](https://forum.cmascenter.org/t/copernicus-cams-boundary-conditions-cmaqv5-3/3666/4 "2022-11-09T17:50:00Z")

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Thank you very Christian Hogrefe for all these details.

I expected challenges as those listed (from 1 to 4) and I am aware about the issue on mapping the different chemical species from a model to another.  
I also thank you for your tips on sea salt and aerosols bins in EAC4 since I did not know about these issues.  
I wonder if there is a working version of your tools where I can contribute (if I am able to do it). I am interested to explore the possibility to use CAMS as BCs and ICs for CMAQ, but if possible, I‘d rather avoid starting from scratch.

Saying this, I also thank Barron H. Henderson for his link. However, I am not fully sure to understand how I can adapt the codes for another model.

Matthieu

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