[Liwg-core] Final(?) mods for P1 ready

Bill Sacks sacks at ucar.edu
Thu Dec 6 04:34:46 MST 2018


Sounds good. I don't know any more than you do about the block inception 
code.

Sarah Bradley - CITG wrote on 12/6/18 2:21 AM:
> Hi Bill
> Great news.
> I think we at Delft will try and do a short IG (I) run to see if things are going okay
>
> Do you know after the testing for the block inception code, if that is also clean and ready to be used?
>
> Thanks
>
> Sarah
>
>> On 6 Dec 2018, at 00:07, Bill Sacks <sacks at ucar.edu> wrote:
>>
>> Hi all,
>>
>> The final(?) mods for P1 are ready. These include allowing the change to be limited to Greenland and adding a runoff flux that holds the excess rain, to maintain water balance.
>>
>> These are documented in this PR https://github.com/ESCOMP/ctsm/pull/586
>>
>> To run with them, do the following in components/clm
>>
>> git remote add billsacks https://github.com/billsacks/ctsm.git
>> git fetch billsacks
>> git checkout rain_to_snow_runs_off
>>
>> The default behavior is unchanged. So to exercise this new option, put the following in user_nl_clm:
>>
>>   glacier_region_rain_to_snow_behavior = 'converted_to_snow','converted_to_snow','runs_off','converted_to_snow'
>>
>> That will just enable the change over Greenland. If you want the change enabled over the entire CISM domain, then change the second item to 'runs_off', too.
>>
>> In addition to unit tests, I have done some short global runs to convince myself this is working properly, but as always, it wouldn't hurt to give this a critical look the first time you use it, in case I missed something. I'm kicking off the full CTSM test suite overnight just to confirm that this doesn't break something else, but I think this is at a state where it's ready for any of you to do a test run with it, if you want.
>>
>> Bill S
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