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phou@...
Lightning output
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phou@...

For the question 3, I found that if I change to a F compset, the surface temperature will not change dramatically in the beginning of run.

But I'm still wonder why couldn't B compset do this like I expected? Both B1850 and B20TR compsets' results are lower than observation for around 2 degree after a 150 years' run.

Hope to get some replies. Thanks a lot!

Best regards,

Pei

hannay

It is very different to run a F compset and a B compset.
- In a F compset: you run an active atmoshere and land model with prescribed SSTs and prescribed sea-ice coverage
- in a B compset, instead of prescribing the SSTs you use a ocean and ice model. This is what we called teh fully coupled mode (active atmosphere, land, oecan and ice).
If you don't need a fully coupled run, I would recommend that you use a F compset instead of  a B compset.

CN means means that you use Carbon-Nitrogen cycle in the land model. If you have the option CN, CLM (this is the land model) includes a fully prognostic treatment of the terrestrial carbon and nitrogen cycles.

If you want to start your un 1950, you can set the RUN_STARTDATE='1950-01-01'.

 

 

 

phou@...

Thank you, Hannay!

I'm not sure if I need a fully coupled run. I think F will give me a good result, but if I want to run after 2005, I may need to search for observation results and set the prescribed SSTs and sea-ice coverage myself? How do the future predict compsets work?

Best regards,

Pei

yh3019@...

Hi Hanny,

I am wondering whether you have the F_AMIP hybrid/branch f09_f09 refcase restart data of 2005-01-01?

Thanks!

Yu

hannay

I assume from the comspet name you are looking for cam4 data
If you have access to Cheyenne, there should be data in:
/glade/p/cesmdata/cseg/inputdata/ccsm4_init/b40.20th.track1.1deg.008/2005-01-01

yh3019@...

Hi Hanny, thank you for your information! 

 

May I ask one more question about input data? From your CESM1.0 experiments website, I can see that the initialization file for RCP cases should be from the b40.20th.track1.2deg.001. But in my runs, the initial file macthed by the model for cam is /inputdata/atm/cam/inic/fv/cami_0000-01-01_1.9x2.5_L30_c070703.nc and I do not know what does this file represent. Can you provide the path of b40.20th.track1.2deg.001 restart files on 2005-01-01 or 2006-01-01?

 

Thanks a lot!

 

Yu

strandwg

Restarts from b40.20th.track1.2deg.001 are on the NCAR HPSS under

/CCSM/csm/b40.20th.track1.2deg.001/rest/2005-01-01-00000

/CCSM/csm/b40.20th.track1.2deg.001/rest/2006-01-01-00000

 However, the NCAR HPSS is currently down. 
yh3019@...

Hi strandwg,

Thank you a lot for letting me know about this info. I am wondering if the hpss is down, then what should I do to get the files that I need?

Thank you very much!

Yu

strandwg

The NCAR HPSS is now back online and in service.

I recommend subscribing to the relevant CISL-provided notification services.

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