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geoschem / GCHP

The "superproject" wrapper repository for GCHP, the high-performance instance of the GEOS-Chem chemical-transport model.
https://gchp.readthedocs.io
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[QUESTION] Is there an archive of restart files for GCHP, or can we regrid GC classic restart file to be at GCHP format? #160

Closed xpye98 closed 3 years ago

xpye98 commented 3 years ago

Hi, all,

I want to know is there an archive of restart files for GCHP, like from benchmark simulations? Or is there a way we can regrid GC classic restart file to be in GCHP format, as I know there is a archive for GC classic here.

Thanks in advance! Xingpei

msulprizio commented 3 years ago

Hi @xpye98. Please see http://ftp.as.harvard.edu/gcgrid/geos-chem/10yr_benchmarks/13.0.0-rc.0/GCHP/Checkpoints/ for output from the 10-year GCHP 13.0.0 benchmark.

You may also regrid the GEOS-Chem Classic restarts, which we recommend if doing direct comparisons between GCClassic and GCHP runs. Otherwise, the GCHP restart files should be fine.

xpye98 commented 3 years ago

@msulprizio Thanks, that helps a lot! Another little question, how long do I need to spinup for my own simulation with different resolution using these restart files? Is one month enough, or three for safety?

LiamBindle commented 3 years ago

@xpye98 I think that should be opened as a new discussion under geoschem/geos-chem. Could you open one and ping us? That way it's archived properly so others can discover it easier.

msulprizio commented 3 years ago

Please also see the GEOS-Chem restart files wiki page for more information and frequently asked questions.

mtsivlidou commented 3 years ago

Hello, @xpye98 did you manage to restart a gchp run?? I use the last checkpoint as the initial restart file, but I am not sure if this is enough. Could you please tell me whether you changed anything else in the settings in order to restart the simulation? Thanks Maria