Ocean Modeling Discussion

ROMS/TOMS

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PostPosted: Thu Apr 18, 2013 7:32 pm 
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Joined: Mon Apr 02, 2012 4:58 pm
Posts: 19
Location: Georgia Tech
I am trying to use ICESHELF for the model.

But it asks for the zice in grid file. Could someone tell what sizes should zice be? And which file requires specifying zice?

Thanks very much!

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PostPosted: Fri Apr 19, 2013 4:44 pm 
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Joined: Wed Jul 02, 2003 5:29 pm
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Location: IMS/UAF, USA
zice is on the rho grid. It is the thickness of ice above the ocean at each gridpoint. Since ice shelves can be hundreds of meters thick, the pressure from that ice is important to take into consideration.

As for which files want to know about it, a simple grep command from the top of the ROMS tree should smoke that out:
Code:
grep -i zice */*/*
get_grid.F has the code for reading the grid file.


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PostPosted: Sat Apr 20, 2013 2:07 pm 
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Joined: Mon Apr 02, 2012 4:58 pm
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Location: Georgia Tech
Thanks Kate!

BTW, do you have any suggestions on where to obtain the iceshelf thickness data?

I learned that some use this dataset:
http://nsidc.org/api/metadata?id=gla12

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kate wrote:
zice is on the rho grid. It is the thickness of ice above the ocean at each gridpoint. Since ice shelves can be hundreds of meters thick, the pressure from that ice is important to take into consideration.

As for which files want to know about it, a simple grep command from the top of the ROMS tree should smoke that out:
Code:
grep -i zice */*/*
get_grid.F has the code for reading the grid file.


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PostPosted: Tue Apr 23, 2013 2:41 pm 
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Location: Danish Meteorological Institute
As a consistent data set for bedrock and ice shelf topography as well grounding line positions you might consider the following data set

Timmermann, R, et al. (2010), "A consistent dataset of Antarctic ice sheet topography, cavity geometry, and global bathymetry", Earth Syst. Sci. Data, 2, 261-273, 2010. doi:10.5194/essd-2-261-2010 , hdl:10013/epic.36409

To go to the data repository directly follow
http://doi.pangaea.de/10.1594/PANGAEA.741917

Good luck


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PostPosted: Tue Apr 30, 2013 3:00 am 
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Joined: Mon Apr 02, 2012 4:58 pm
Posts: 19
Location: Georgia Tech
Thanks very much!

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crode1968 wrote:
As a consistent data set for bedrock and ice shelf topography as well grounding line positions you might consider the following data set

Timmermann, R, et al. (2010), "A consistent dataset of Antarctic ice sheet topography, cavity geometry, and global bathymetry", Earth Syst. Sci. Data, 2, 261-273, 2010. doi:10.5194/essd-2-261-2010 , hdl:10013/epic.36409

To go to the data repository directly follow
http://doi.pangaea.de/10.1594/PANGAEA.741917

Good luck


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