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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).
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Implementation of latest version of CEDS (v_2024_07_08) #2581

Open Mashiat25 opened 1 day ago

Mashiat25 commented 1 day ago

Your name

Mashiat Hossain

Your affiliation

University of Illinois Urbana-Champaign

Please provide a clear and concise description of your question or discussion topic.

I noticed that the latest version of CEDS (https://github.com/JGCRI/CEDS) which includes data up to 2022, has not yet been implemented in GEOS-Chem. I was wondering if there is any ongoing work to integrate this version or if there might be a timeline for when it could become available for use.

If no one is currently working on this, I would appreciate guidance on how to implement it in GEOS-Chem. Specifically, would the existing scripts for processing CEDS data still be compatible with this version, or would new scripts need to be developed? Additionally, the CEDS website mentions that the gridded datasets are not yet available—would it be better to wait for these datasets before proceeding with the integration?

yantosca commented 1 day ago

Thanks for writing @Mashiat25 and good to hear from you again. We do have the CEDS data on our "to-do" list for 14.6.0 but haven't gotten to it yet. (See PR #2171). There originally was an issue with the NH3 seasonality but that has been fixed by the CEDS developers.

You shouldn't have to run the scripts on the raw files as @1Dandan has already done this. The files are on the WashU server, which you can browse with one of these links:

You can take a look at the updates in HEMCO_Config.rc. These will need to be further updated as this branch is now further behind 14.5.0. But you can see the changes that were made w/r/t the CEDS entries.

Also tagging @msulprizio @yidant

Mashiat25 commented 1 day ago

Thank you for your prompt response, @yantosca! Based on the discussions in #1745 and #2171, I understand that @1Dandan has worked on the previous version of CEDS (v_2021_4_21) to generate files at a finer resolution of 0.1 degree. Please correct me if I'm mistaken, @1Dandan. My question, however, pertains to the implementation of the most recent version of CEDS, released in July 2024.

yantosca commented 23 hours ago

Thanks @Mashiat25. I was not aware there was a newer CEDS version than what @1Dandan prepared. I would check with the Emissions WG to see if anyone else is working on this. Tagging @eamarais @jaegle

eamarais commented 23 hours ago

@Mashiat25, not to the best of my knowledge. It might be worth asking the geos-chem-emissions email list.

yantosca commented 20 hours ago

@Mashiat25: Perhaps the same scripts that @1Dandan used would be applicable to the new CEDS inventory. You can grab those from here: https://geos-chem.s3.amazonaws.com/index.html#HEMCO/CEDS/v2024-06/scripts/

yantosca commented 20 hours ago

Oops pressed the wrong button and it closed this issue. Now reopened.