WRF Chem v4 user guide

Hi,
Is there an updated user guide for v4? I am only able to find the 3.9.1.1.
Thanks.

Hi,

Unfortunately there is not yet an updated user guide, however, most changes between 3.9 and 4.2 have been modest - at least on the chem side of things. You can see a list of documented changes here:

https://github.com/wrf-model/WRF/releases

and chem-specific pull requests here:

https://github.com/wrf-model/WRF/pulls?q=is%3Apr+label%3A%22WRF+Chem%22+

We will be working on putting out a new user guide soon - Is there something specific you would like to see discussed?

Jordan

Hi,
I was curious about the changes in namelist options for &chem for v4 and above. For eg. there is a new dust_opt = 13 for MOSAIC, which isn't documented in 3.9.1.1 user guide. Similarly, there may be others as well. Want to know about these.

Also has this fix been implemented yet:https://github.com/wrf-model/WRF/pull/1094
It says approved but is not shown in https://github.com/wrf-model/WRF/releases I don't have much knowledge in github yet.

Thanks!