GCAP2 Data download error

[dyblove]

Your name

Yibo Dou

Your affiliation

PKU

What happened? What did you expect to happen?

I am utilizing GCClassic version 14.3.0 to model future PM2.5 concentrations based on the SSP1-2.6 future emission and meteorological data. When I executed the command ./download_data.py log. dryrun --washu to download the necessary data, I encountered a 404 Not Found error. I am uncertain whether this issue stems from a misconfiguration on my part or a network-related error. However, I was unable to locate the relevant data for GCAP2/CMIP6/SSP1-2.6 on the website http://geoschemdata.wustl.edu/ExtData/. I am in dire need of assistance and valuable reference information. I would be immensely grateful if anyone could offer their help!

My configuration file is provided below. I wish to simulate the results for the year 2030, with the time period set from 20291201 to 20300101. Could you please confirm if this setup is correct? Additionally, if I want to fix the meteorological data to today's date and use future emission data, how should I configure it?

What are the steps to reproduce the bug?

I am utilizing GCClassic version 14.3.0 to model future PM2.5 concentrations based on the SSP1-2.6 future emission and meteorological data. When I executed the command ./download_data.py log. dryrun --washu to download the necessary data, I encountered a 404 Not Found error. I am uncertain whether this issue stems from a misconfiguration on my part or a network-related error. However, I was unable to locate the relevant data for GCAP2/CMIP6/SSP1-2.6 on the website http://geoschemdata.wustl.edu/ExtData/. I am in dire need of assistance and valuable reference information. I would be immensely grateful if anyone could offer their help!

Please attach any relevant configuration and log files.

HEMCO_Config.rc.txt
log.dryrun.txt
geoschem_config.yml.txt

What GEOS-Chem version were you using?

14.4.3

What environment were you running GEOS-Chem on?

Other (please explain below)

What compiler and version were you using?

GCC 7.4.0

Will you be addressing this bug yourself?

Yes

In what configuration were you running GEOS-Chem?

GCClassic

What simulation were you running?

Full chemistry

As what resolution were you running GEOS-Chem?

2×2.5

What meterology fields did you use?

GCAP 2.0

Additional information

No response

[yantosca]

Thanks for writing @dyblove. The GCAP2 data are stored at the University of Rochester portal. You can use this command to download the data:

$ ./download data.py log.dryrun rochester

Also see the GEOS-Chem 14.3.0 dry-run documentation at this link:

• https://geos-chem.readthedocs.io/en/14.3.0/gcclassic-user-guide/dry-run-download.html

[dyblove]

Thanks for writing @dyblove. The GCAP2 data are stored at the University of Rochester portal. You can use this command to download the data:

$ ./download data.py log.dryrun rochester

Also see the GEOS-Chem 14.3.0 dry-run documentation at this link:

• https://geos-chem.readthedocs.io/en/14.3.0/gcclassic-user-guide/dry-run-download.html

Thank you very much, your reply was very helpful to me. However, I tried Rochester and still encountered a 404 error. What should I do?

[dyblove]

Thanks for writing @dyblove. The GCAP2 data are stored at the University of Rochester portal. You can use this command to download the data:

$ ./download data.py log.dryrun rochester

Also see the GEOS-Chem 14.3.0 dry-run documentation at this link:

• https://geos-chem.readthedocs.io/en/14.3.0/gcclassic-user-guide/dry-run-download.html

Oh @yantosca , I'm extremely sorry. I successfully accessed http://atmos.earth.rochester.edu/input/gc/ExtData/GCAP2/CMIP6/SSP126/F40/. But I discovered that there were only meteorological data for the years 2040-2049 and 2090-2099. Then, how should I obtain the future emission data? I want to conduct a simulation for the year 2030 and I'm in great need of assistance.

[yantosca]

Thanks @dyblove for the update. You can also try downloading the CMIP6 data from the new s3://geos-chem bucket. I think they are at this path.

https://geos-chem.s3.amazonaws.com/index.html#HEMCO/CMIP6/v2020-03/

$ ./download_data.py log.dryrun geoschem+http