SCM over sea ice with MYNN

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21marta
Posts: 17
Joined: Thu Oct 11, 2018 11:53 am

SCM over sea ice with MYNN

Post by 21marta » Mon Dec 28, 2020 12:40 am

Hi!

I am trying to run WRF SCM over sea ice with MYNN as a surface and pbl layer scheme. The model returns Segmentation Error. I attach namelist input, and errors file and my modified module_initialize_scm. Thanks in advance for help!

Best wishes,
Attachments
rsl.error.0000.txt
(220.04 KiB) Downloaded 9 times
module_initialize.F
(22.62 KiB) Downloaded 7 times
namelist.input
(4.47 KiB) Downloaded 9 times

Ming Chen
Posts: 1455
Joined: Mon Apr 23, 2018 9:42 pm

Re: SCM over sea ice with MYNN

Post by Ming Chen » Tue Dec 29, 2020 7:21 pm

The SCM case only works with Noah and USGS land surface type free of snow and ice.
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21marta
Posts: 17
Joined: Thu Oct 11, 2018 11:53 am

Re: SCM over sea ice with MYNN

Post by 21marta » Sun Jan 03, 2021 9:00 am

Hi!

Thanks for the reply!

But does it mean that I cannot run WRF SCM over sea ice?

Ming Chen
Posts: 1455
Joined: Mon Apr 23, 2018 9:42 pm

Re: SCM over sea ice with MYNN

Post by Ming Chen » Tue Jan 05, 2021 5:12 pm

Yes you are right. SCM is designed to run over land points.
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21marta
Posts: 17
Joined: Thu Oct 11, 2018 11:53 am

Re: SCM over sea ice with MYNN

Post by 21marta » Tue Jan 05, 2021 7:25 pm

Hi! Thanks again for reply.
Just want to verify, that the default version of WRF SCM is designed to work over land but if I modify the module_initialize file I can make it work over ice covered surface?

Ming Chen
Posts: 1455
Joined: Mon Apr 23, 2018 9:42 pm

Re: SCM over sea ice with MYNN

Post by Ming Chen » Tue Jan 05, 2021 8:14 pm

We have never done that before. But I think it is practical to modify the code to make SCM run over ice. Please pay attention to how the model process snow/ice process and make sure you provide all the necessary information. Good luck!
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