Strange output at boundaries

Topics specifically related to the wrf.exe program
Post Reply
neel14
Posts: 77
Joined: Fri Mar 15, 2019 6:52 am

Strange output at boundaries

Post by neel14 » Wed Sep 16, 2020 6:24 am

Hi,
I am using ndown to generate boundary conditions for an inner domain. The wrf output of this inner domain however contains narrow bands of strange values at the boundaries. I have given the output of rain variables, but holds true for T2 variable as well. The distinctiveness of the bands increases with the model output time. I am using WRF-4.1.3.
Kindly help in resolving this issue.
Attachments
namelist.input
(10.29 KiB) Downloaded 17 times
ncview.RAINNC.jpg
ncview.RAINC.jpg

kwerner
Posts: 1926
Joined: Wed Feb 14, 2018 9:21 pm

Re: Strange output at boundaries

Post by kwerner » Mon Sep 21, 2020 3:43 pm

Hi,
Can you send the namelists you use to run d01, to run ndown, and then I assume this one you sent is for d02? Is that correct? Thanks.
NCAR/MMM

neel14
Posts: 77
Joined: Fri Mar 15, 2019 6:52 am

Re: Strange output at boundaries

Post by neel14 » Tue Sep 22, 2020 10:08 am

kwerner wrote:
Mon Sep 21, 2020 3:43 pm
Can you send the namelists you use to run d01, to run ndown, and then I assume this one you sent is for d02? Is that correct? Thanks.
Yes,they were for d02.
I have attached for d01.

Thanks.

Best
Neeldip
Attachments
namelist_ndown.input
(9.8 KiB) Downloaded 12 times
namelist_d01.input
(9.76 KiB) Downloaded 14 times

kwerner
Posts: 1926
Joined: Wed Feb 14, 2018 9:21 pm

Re: Strange output at boundaries

Post by kwerner » Fri Sep 25, 2020 11:20 pm

Hi,
I'm not sure if this would have anything to do with it, but try setting nproc_x/y to the same thing you set for the original simulation. Those differ between your namelists. Are you running WRF-Chem? If so, does this happen if you run this on a non-chem build of WRF (just basic WRF)? Thanks!
NCAR/MMM

Post Reply

Return to “wrf.exe”