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geoschem / geos-chem

GEOS-Chem "Science Codebase" repository. Contains GEOS-Chem science routines, run directory generation scripts, and interface code. This repository is used as a submodule within the GCClassic and GCHP wrappers, as well as in other modeling contexts (external ESMs).
http://geos-chem.org
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Southeast Asia mask is wrong [BUG/ISSUE] #1586

Closed zsx-GitHub closed 1 year ago

zsx-GitHub commented 1 year ago

Dear GCST, I noticed that the SE Asia mask file (/n/holyscratch01/external_repos/GEOS-CHEM/gcgrid/gcdata/ExtData/HEMCO/MASKS/v2014-07/SE_Asia_mask.generic.1x1.nc) incorrectly includes too much area to the north. That is, most parts of China are included in the Southeast Asia mask.

yantosca commented 1 year ago

Thanks @zsx-GitHub for writing. That looks like an old mask file that may have been developed for a specific inventory. @msulprizio, do you know more about this mask?

msulprizio commented 1 year ago

@zsx-GitHub @yantosca It looks like that mask file is quite old and was used for the Streets emissions inventory which was unsupported in GEOS-Chem 12.4.0. Most mask files are customized for specific inventories and don't necessarily represent official region definitions. If a regional mask is needed for research purposes, we recommend users generate their own using tools in python, GIS, etc.

zsx-GitHub commented 1 year ago

Thank you @yantosca and @msulprizio! I have generated the mask files myself. But will it be better to remove those outdated mask files and the corresponding lines in the HEMCO_Config.rc file to avoid confusion?

yantosca commented 1 year ago

Thanks for the update @zsx-GitHub. We usually keep files like that for the sake of reference. We would refer users to the README file in the folder. I'll add a comment to denote that this mask is for Streets data and is obsolete.

Glad that you've created the mask that you need. I'll close out this issue.

zsx-GitHub commented 1 year ago

Thank you @yantosca