WACCM Compsets & Scientifically Validated Resolutions

[mmills@ucar_edu]

The current release of CESM1.0 contains 5 component sets for building WACCM4.

Of these, 3 are B-compsets, with all fully active atmosphere (WACCM), land (CLM), ocean (POP), sea ice (CICE); and stub land ice (SGLC). These should be run at f19_g16 resolution, which puts the ocean model on its own grid:

B_1850_WACCM (short name B1850W): Pre-industrial (perpetual year 1850AD)

B_1850_WACCM_CN (B1850WCN): Pre-industrial with carbon-nitrogen cycle in CLM. Scientifically validated at 1.9x2.5_gx1v6.

B_1850-2000_WACCM_CN (B20TRWCN): 20th Century (1850-2000 transient) with carbon-nitrogen cycle in CLM. Scientifically validated at 1.9x2.5_gx1v6.

The remaining 2 are F-compsets, with fully active atmosphere (WACCM), land (CLM); prescribed sea ice (CICE); data ocean (SST data mode); and stub land ice (SGLC). These should be run at f19_f19 or f45_f45 resolution:

F_1850_WACCM (F1850W): Pre-industrial (perpetual year 1850AD)

F_2000_WACCM (FW): Present-day (perpetual year 2000AD)

 

[jiarongzhang6@gmail_com]

Hi,Could F_2000_WACCM (FW) be run with f09_f09 resolution for cesm 1.2.2? Best wishes,Jiarong

 

[mmills]

You could try it on your own, however, NCAR does not support running WACCM at 0.95°x1.25° horizontal resolution at this time. This will be supported with the release of CESM2.0.

 

[jiarongzhang6@gmail_com]

Thanks very much for your reply.I have tried to run WACCM at 0.95°x1.25° horizontal resolution. It shows some problem. According to your reply, I think cesm1.2.2 version may not support this. Do you know what time CESM 2.0 is available? Best wishes,Jiarong 

 

[mmills]

CESM2 should be released near the end of 2017.

 

[jiarongzhang6@gmail_com]

Thanks so much!Best wishes,Jiarong

 

[jiarongzhang6@gmail_com]

Dear Mike Mills,Hi, has the CESM2.0 been released? If it has been released, where I can download it? I didn't see that version on website. Look forward to your reply. Thank you very much!Best wishes,Jiarong

 

[jedwards]

THe CESM2 release has been delayed, we still anticipate a release in the spring or summer of 2018.