Experiment via met_em

[HragN]

Hello,

I am currently attempting to conduct an experiment through WRF where I swap the boundary conditions (i.e., winds, moisture) between two time periods.

It's a fairly simple process, where I have a 10-day long simulation for both time periods, and I simply swap their respective boundary conditions through the met_em files they use to initialize. This is analogous to nudging, but more direct. I already built a script that swaps met_em file variables effectively and I am currently just waiting for ./metgrid.exe to finish so I can move forward in the experiment.

While I wait, I wanted to ask if this is a method that has been utilized in the WRF/MPAS community before since I have not run across anything like this before in my readings. I imagine this method might introduce some problems with continuity, but I won't know until I try it.

Thanks!

 

[Ming Chen]

We didn't run any cases with swapped lateral boundary data. What is the purpose that you want to swap the data?

 

[HragN]

We didn't run any cases with swapped lateral boundary data. What is the purpose that you want to swap the data?

Hey Ming,

I am investigating the causes for the domain average increase in oceanic diurnal rainfall over the MC under MJO convective conditions compared to suppressed conditions. I would like to test the sensitivity of oceanic rainfall with variables such as moisture and wind since they evolve considerably with the passing of the MJO.

Essentially my plan is to updating WRF with moisture and/or wind conditions from the PreMJO period while keeping everything else the same.