How can I run the model continuously from where it crashed but not from the beginning?

[sharp@mail_iap_ac_cn]

Dear friends, I am running CESM 1.2 with the Merra datasets from 2005-01-01 to 2005-12-31. But it was crashed just at the end of this running! Because the model needs to read the first date file of 2006, MERRA_19x2_20060101.nc, to simulate the time of 2005-12-31, 24:00 and I have not put it in the inputdate folder. And my question is that how can I  run the model continuously from where it crashed but not from the beginning of 2005-01-01 which may take a long time. In addition, there was no restart files in my result folder but only the " *cam.h0.*.nc " files, and the last one was " *.cam.h0.2005-11.nc" .
I am looking for your replies and thanks in advance.

 

[hannay]

By default CESM save restarts files at the end of the run. You also have the option to save intermediate restarts with the variables "REST_OPTION"  and "REST_N" (in env_run.xml).Unfortunately, if you didn't save intermediate restarts there is no way to start the runs later than where you started the first time. 

 

[sharp@mail_iap_ac_cn]

What a pity! So I will set the variables "REST_OPTION" and "REST_N" next time.And thanks for your detailed explanation, hannay.