Dry deposition velocity is getting zero values on WRF-Chem with MOZART GOCART

[niljai2009]

I am running WRF-Chem v4.4 with chem_opt=112 (i.e. MOZART GOCART). I am interested to see the total runoff due to dry and wet BC. The simulation goes well and I get the BC concentration i.e. both hydrophobic and hydrophilic BC (BC1 & BC2). But when I try to see the dry deposition velocity, it gives 0 value. To perform this simulation I used FINN for biomass burning emissions, EDGAR for the anthropogenic emissions, and MEGAN for biogenic emissions. The namelist and figures are attached. Please advise Why I am getting 0 dry deposition velocity and how I can calculate total runoff due to BC?

To Reproduce Steps to reproduce the behavior:

1. Use compiler and version ' WRF-Chem v4.4'
2. Use namelist options 'with chem_opt=112'
3. Output is 'getting zero values for dry deposition velocity'

Expected behavior Non-zero values for dry deposition velocity.

Screenshots

Attachments

namelist.txt

[weiwangncar]

@niljai2009 Please post this in the user's forum: https://forum.mmm.ucar.edu/. Thanks!

[niljai2009]

@weiwangncar Thank you so much.