Page 1 of 1

Horizontal advection for a new variable

PostPosted: Mon Jan 28, 2019 2:32 pm
by Christina
Hi all,

for the last months I've spent time implementing a scheme in WRF that describes the process of drifting snow. Therefore I created three new modules in WRF-Chem and made use of the chem array to calculate the concentration of the airborne snowparticles.

Now, as a last step, I want to implement an advection equation for the saltation process (that means the movement of snowparticles near the ground).

I thought about using the chem array again for this horizontal advection, but the problem is, that the chem array also calculates the vertical advection (what I don't what).

I had a look in the the scalar advection code in dyn_em/module_em.F and dyn_em/solve_em.F, and thought about using the "h_tendency". But actually I don't really understand that code. So, nothing has been successful until now.

Does any of you know how to turn off the vertical advection for a chem scalar or has ever tried to implement an advection equation in WRF?

If you need more information, just ask. I'm thankful for any advice or tips.

Thank you
Christina

Re: Horizontal advection for a new variable

PostPosted: Fri Mar 29, 2019 1:39 am
by swara31
Thanks for the this post .!!