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"Spinning up" CLM in CESM framework

Hopefully this is a straightforward question.

I have a reanalysis data product that I have interpolated to an atmospheric grid, it runs fine. Now I want to spin-up an active CLM to match the reanalysis product so the fluxes are correct. I'm using prescribed ocean/ice.

My original plan was to run the model forward for 6 hours, dump the CLM history file, reinitialize with that CLM and the original ATM indata, run it 6 hours, etc. until I "converge" on a CLM solution which is in rough balance with the initial atmospheric conditions.

How would I do this in the CESM1.0.4 framework?

With CLM3, it appears I would just use hist_crtinic to dump an initialization file every 6 hours and then specify that file as finidat in the namelist. However, hist_crtinic has been removed in CLM4 and replaced with quasi-ambiguous language in the user guide?

Is there any straightforward way to do this? Ideally I'd like to be write a batch script to do this and run through a large number of iterations of the model (the job would keep re-submitting itself after modifying the namelist to take in the update CLM output) but without an obvious way to dump the file needed for finidat, I can't do that.

Hopefully this is just something I'm glossing over in the user guide and missing. Thanks in advance.
 
Thanks, Erik, that is the answer. I was unaware that the restart files were now NetCDF (and therefore had this capability) and didn't think to check them, but looks like I'm good to go now.
 
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