A question about parent_id in namelist.input

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chunchih
Posts: 12
Joined: Tue Sep 08, 2020 3:52 pm

A question about parent_id in namelist.input

Post by chunchih » Thu Apr 22, 2021 11:51 pm

Hi WRF help,

I have a question about the 'parent_id' field in namelist.input file. I am running a two-way nested real-case simulation with three domains. In my namelist.input file, I have the parent_id of my coarsest domain set to 0 (as in many real-case examples). However, in some documentations, they also said that this value should be set to 1 for the coarsest domain. I was wondering does it matter whether this value is set to 0 or 1 for the coarsest domain since this domain is not nested within another domain (therefore, has no parent domain or the parent domain is itself)? In my namelist.wps, the parent_id for my coarsest domain is set to 1.

Any clarification would be greatly appreciated!

Ming Chen
Posts: 1456
Joined: Mon Apr 23, 2018 9:42 pm

Re: A question about parent_id in namelist.input

Post by Ming Chen » Fri Apr 23, 2021 12:48 am

Hi,
The parent_id for the outermost domain can be 0 or 1, it doesn't really matter.
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chunchih
Posts: 12
Joined: Tue Sep 08, 2020 3:52 pm

Re: A question about parent_id in namelist.input

Post by chunchih » Fri Apr 23, 2021 1:00 am

OK. Great! Was kind of assuming that but it's great to have a confirmation.

Thanks!

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