Specified output area in the STASH of UM RNS

Hello Atmos community,

I was attempting to extract a particular region from a rotated grid. In the STASH request’s domain settings, I chose the “specified area in whole degrees” option and inputted the range I needed: -3 to 3 for rotated latitude and 169 to 181 for rotated longitude, as shown in the fig below. Unfortunately, the resulting output file is odd—it only saves a single longitude while including the full range of latitudes.

I’m curious if anyone can explain how to properly configure this feature to correctly save the desired area on a rotated grid?

Many thanks,

Zhangcheng

Hi, @ZhangchengPei , I’m the triager today. I noticed no one has replied to this topic yet, so I’ll look for someone who can assist you.

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Hey @ZhangchengPei, Following our discussion, it appears that your question would be more suitable for the Atmos community. We’ll therefore update the tag to community-help

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Hi Zhangcheng,

I once tried to output a specific area from a non-rotated variable grid, and the output was garbage. I never resolved the issue. I ended up using mule-cutout to save the area I wanted, after writing out the full grid. That might be a faster solution.

Cheers,

Susan

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Thanks Susan! It’s good to know that it’s not an issue just for me and it’s not uniquely related to rotated grids.

Cheers,

Zhangcheng