[MITgcm-support] [EXTERNAL] How to start from given initial conditions without restarting the simulation

Fri Apr 3 19:49:30 EDT 2020

why not just change startDate_* in data.cal ?
then you can start from different hydrog*file and *initfile
for each of your cases

> On Apr 3, 2020, at 9:03 AM, Shevchenko, Igor <i.shevchenko at imperial.ac.uk> wrote:
> 
> Hi Jody,
> 
> I have probed it a bit deeper. It seems changing baseTime eventually asks for pickup files.
> Perhaps, it's possible to tweak pickup files so that they correspond to the initial condition one needs.
> 
> Best regards,
> Igor
> 
> ________________________________________
> From: MITgcm-support <mitgcm-support-bounces at mitgcm.org> on behalf of Jody Klymak <jklymak at uvic.ca>
> Sent: 03 April 2020 16:49
> To: mitgcm-support at mitgcm.org
> Subject: Re: [MITgcm-support] [EXTERNAL] How to start from given initial conditions without restarting the simulation
> 
> Hi Igor,
> 
> That would be my guess, but I’ve not checked either by running or tracing the code.
> 
> Cheers,   Jody
> 
> 
> 
>> On 3 Apr 2020, at 05:00, Shevchenko, Igor <i.shevchenko at imperial.ac.uk> wrote:
>> 
>> Hi Jody,
>> 
>> Thank you for your suggestion.
>> Do you mean that setting up baseTime into, say 15, will make all necessary interpolations of the atmospheric forcing and open boundary conditions to match this particular moment in time?
>> 
>> Best regards,
>> Igor
>> 
>> ________________________________________
>> From: MITgcm-support <mitgcm-support-bounces at mitgcm.org> on behalf of Jody Klymak <jklymak at uvic.ca>
>> Sent: 02 April 2020 20:39
>> To: mitgcm-support at mitgcm.org
>> Subject: Re: [MITgcm-support] [EXTERNAL] How to start from given initial conditions without restarting the simulation
>> 
>> Hi Igor,
>> 
>> Not 100% sure, but I *think* you can set baseTime to be 0, 5, 10, 15 in each of your new simulations, and then you can use the same forcing files for each of your runs?
>> 
>> Cheers,   Jody
>> 
>> On Apr 2, 2020, at  11:15 AM, Shevchenko, Igor <i.shevchenko at imperial.ac.uk<mailto:i.shevchenko at imperial.ac.uk>> wrote:
>> 
>> That's right, I can do it. In fact, this is what I do to start the model from given initial conditions.
>> What I can't figure out, where there is a possability to specify, say 4 initial conditions, and pick them up at different moments in time (say t=0, 5, 10, 15 as in the example below) without stopping the simulation?
>> 
>> &PARM05
>> bathyFile       = 'bathy.bin',
>> hydrogThetaFile = 'Theta.0',
>> hydrogSaltFile  = 'Salt.0',
>> uVelInitFile    = 'Uvel.0',
>> vVelInitFile    = 'Vvel.0',
>> pSurfInitFile   = 'Eta.0',
>> 
>> bathyFile       = 'bathy.bin',
>> hydrogThetaFile = 'Theta.5',
>> hydrogSaltFile  = 'Salt.5',
>> uVelInitFile    = 'Uvel.5,
>> vVelInitFile    = 'Vvel.5',
>> pSurfInitFile   = 'Eta.5',
>> 
>> bathyFile       = 'bathy.bin',
>> hydrogThetaFile = 'Theta.10',
>> hydrogSaltFile  = 'Salt.10',
>> uVelInitFile    = 'Uvel.10,
>> vVelInitFile    = 'Vvel.10',
>> pSurfInitFile   = 'Eta.10',
>> 
>> bathyFile       = 'bathy.bin',
>> hydrogThetaFile = 'Theta.15',
>> hydrogSaltFile  = 'Salt.15',
>> uVelInitFile    = 'Uvel.15,
>> vVelInitFile    = 'Vvel.15',
>> pSurfInitFile   = 'Eta.15',
>> 
>> 
>> ________________________________________
>> From: MITgcm-support <mitgcm-support-bounces at mitgcm.org<mailto:mitgcm-support-bounces at mitgcm.org>> on behalf of Dimitris Menemenlis <dmenemenlis at gmail.com<mailto:dmenemenlis at gmail.com>>
>> Sent: 02 April 2020 19:03
>> To: MITgcm Support
>> Subject: Re: [MITgcm-support] [EXTERNAL] How to start from given initial conditions without restarting the simulation
>> 
>> This email from dmenemenlis at gmail.com<mailto:dmenemenlis at gmail.com> originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list<https://spam.ic.ac.uk/SpamConsole/Senders.aspx> to disable email stamping for this address.
>> 
>> 
>> 
>> you can specify these fields in data PARM05 directly, e.g.,
>> 
>> # Input datasets
>> &PARM05
>> bathyFile       = 'bathy.bin',
>> hydrogThetaFile = 'Theta.0005184000',
>> hydrogSaltFile  = 'Salt.0005184000',
>> uVelInitFile    = 'Uvel.0005184000',
>> vVelInitFile    = 'Vvel.0005184000',
>> pSurfInitFile   = 'Eta.0005184000',
>> /
>> 
>> then MITgcm will initialize the other fields automatically
>> 
>> On Apr 2, 2020, at 10:50 AM, Shevchenko, Igor <i.shevchenko at imperial.ac.uk<mailto:i.shevchenko at imperial.ac.uk><mailto:i.shevchenko at imperial.ac.uk>> wrote:
>> 
>> Surely, I can do it, but the problem is that the new initial condition is just a set of fields for U, V, T, S, and Eta, while the pickup file requires much more than that.
>> 
>> _______________________________________________
>> MITgcm-support mailing list
>> MITgcm-support at mitgcm.org<mailto:MITgcm-support at mitgcm.org>
>> http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support
>> 
>> _______________________________________________
>> MITgcm-support mailing list
>> MITgcm-support at mitgcm.org
>> http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support
> 
> --
> Jody Klymak
> http://web.uvic.ca/~jklymak/
> 
> 
> 
> 
> 
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org
> http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org
> http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support