Jump to content
  • Member Statistics

    17,502
    Total Members
    7,904
    Most Online
    Weathernoob335
    Newest Member
    Weathernoob335
    Joined

Simulate shallow convection


bas

Recommended Posts

Hello,

 

I want to simulate shallow convection (wet and dry) along the sea-breeze front. I am using WRF 3.5.1 in a nested grid configuration with the highest resolution gird of 500 m while i have turned off cumulus physics so that model should resolve vertical fluxes explicitly. I have two questions;

a) Is this grid resolution i.e. 500 m appropriate to capture shallow convection.
B) In the WRF physics namelist there are two options for shallow convection, first is "ishallow" which is used with cumulus parametrization and second is "shcu_physics".

I wonder what "shcu_physics" actually does? is it a substitute to cu_physics and what difference it will make compared to the one with explicitly resolved vertical fluxes? I ran two test simulations with and without shcu_physics (cu_physics = 0 in both sims) and did not find any difference. Secondly is it necessary to use this scheme with YSU PBL only? I also used Mellor-Yamada and the model ran fine without any stability issues.

I would appreciate if any of the wrf physics expert could respond on this.

Bas:)

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...