[MITgcm-support] adjoint example

Patrick Heimbach heimbach at MIT.EDU
Wed Dec 3 09:06:44 EST 2003


It does work in some circumstances and still doesn't in others.
If you'd like to use it, first thing to do is to switch off
gardient Richardson number based interior shear mixing.

-Patrick

BIN ZHAO wrote:
> Thanks for the information.
> As you said,switching off GM/Redi works.
> 
> Does adjoint work with KPP scheme?
> Bin
> 
> ----- Original Message -----
> From: Patrick Heimbach <heimbach at MIT.EDU>
> Date: Tuesday, December 2, 2003 9:11 am
> Subject: Re: [MITgcm-support] adjoint example
> 
> 
>>For starters, switch off GM/Redi, i.e. in data.pkg set
>>useGMRedi=.FALSE.
>>
>>The adjoint of this scheme is tricky,
>>but to get you started you should be fine without it.
>>
>>-Patrick
>>
>>
>>
>>BIN ZHAO wrote:
>>
>>>Hi all,
>>>  I just begin working on the adjoint of the MITgcm.
>>>  As a first step, I tried the example in 
>>
>>c51/verification/global_ocean.90x40x15.>   I compiled and ran the 
>>adjoint model for a short period of time(7 days) with only 
>>ALLOW_COST_ATLANTIC_HEAT, and I got reasonal sensitivities. But 
>>when I ran it for 1 year, the sensitivity values just went 
>>crazy(10^54?). Can anyone tell me what is wrong here?
>>
>>>Thanks,
>>>Bin Zhao
>>>
>>>
>>>_______________________________________________
>>>MITgcm-support mailing list
>>>MITgcm-support at mitgcm.org
>>>http://dev.mitgcm.org/mailman/listinfo/mitgcm-support
>>
>>
>>-- 
>>Patrick Heimbach ........................... M.I.T
>>FON: +1/617/253-5259 .......... EAPS, Room 54-1518
>>FAX: +1/617/253-4464 ..... 77 Massachusetts Avenue
>>heimbach at mit.edu ....... Cambridge MA 02139
>>http://www.mit.edu/~heimbach/ .............. U.S.A
>>
>>_______________________________________________
>>MITgcm-support mailing list
>>MITgcm-support at mitgcm.org
>>http://dev.mitgcm.org/mailman/listinfo/mitgcm-support
>>
> 
> 
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-- 
Patrick Heimbach ........................... M.I.T
FON: +1/617/253-5259 .......... EAPS, Room 54-1518
FAX: +1/617/253-4464 ..... 77 Massachusetts Avenue
mailto:heimbach at mit.edu ....... Cambridge MA 02139
http://www.mit.edu/~heimbach/ .............. U.S.A




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