[MITgcm-support] MITgcm-support Digest, Vol 159, Issue 26

[Manucharyan, Georgy E. (Georgy)]

Thanks for your advise Martin,

I am curious why the sea ice pressure load term is not included by default in ocean dynamics? Are there any physical arguments for whether or not to include this term or is the runtime flag simply a coding convenience?

Thanks again,
Georgy



On Sep 26, 2016, at 9:00 AM, mitgcm-support-request at mitgcm.org<mailto:mitgcm-support-request at mitgcm.org> wrote:

----------------------------------------------------------------------

Message: 1
Date: Mon, 26 Sep 2016 07:45:28 +0200
From: Martin Losch <Martin.Losch at awi.de<mailto:Martin.Losch at awi.de>>
To: MITgcm Support <mitgcm-support at mitgcm.org<mailto:mitgcm-support at mitgcm.org>>
Subject: Re: [MITgcm-support] Does the sea ice mass affect the ocean
surface pressure?
Message-ID: <ACC605AB-FC7F-4E42-BF28-8F2341608EE4 at awi.de<mailto:ACC605AB-FC7F-4E42-BF28-8F2341608EE4 at awi.de>>
Content-Type: text/plain; charset="us-ascii"

Hi Gregory,

as with many parameterisations in the MITgcm, you can turn this effect on or off.
The CPP-flag ATMOSPHERIC_LOADING needs to be defined to make surface loading available and then you need to use the runtiime flag useRealFreshWaterFlux=.TRUE. in data

Martin

On 24 Sep 2016, at 01:16, Georgy Manucharayan <gmanuch at caltech.edu<mailto:gmanuch at caltech.edu>> wrote:

Hi all,

The momentum equations for the sea ice includes a term that is a gradient of the sea surface height potential \phi(0) = g \eta + p_a/rho_0 + mg/rho_0 with the last term representing the sea ice load.  I am interested if this same potential is used for the ocean equations: i.e. does the ice mass modify the surface ocean pressure? If so, which routine deals with this calculation?

Thank for your help,
Georgy

--
Georgy Manucharyan,
Stanback Postdoctoral Scholar,
Environmental Science and Engineering,
California Institute of Technology,
MS 131-24, 1200 California Blvd,
Pasadena, CA, 91125

Office: L+R, Room 226; Tel: (626) 395-8715
Web: http://www.its.caltech.edu/~gmanuch



_______________________________________________
MITgcm-support mailing list
MITgcm-support at mitgcm.org<mailto:MITgcm-support at mitgcm.org>
http://mitgcm.org/mailman/listinfo/mitgcm-support


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mitgcm.org/pipermail/mitgcm-support/attachments/20160927/5c1faf7d/attachment-0001.htm>