Re: CRYOLIST Digest, Vol 23, Issue 17

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Re: CRYOLIST Digest, Vol 23, Issue 17

Matt King
Dear  Eric

if you've not got this sorted, I can provide a "landmask" based on the MOA "coastline" which includes the ice shelves. I just convert it use grdlandmask in GMT. I can also do a "grounding line" one which just includes the grounded ice. Of course the ice shelves are freely floating on the ocean, so I guess this shoudl be called something like a "meteoric ice sheet" mask.

let me know what lat/lon resolution you need, or I can do polar stereographic

matt


Matt King
Reader in Polar Geodesy & NERC Fellow
School of Civil Engineering and Geosciences    Email: [hidden email]
Cassie Building                 Ph: 0191 222 7833 Int: + 44 191 222 7833
Newcastle University            Fax: 0191 222 6502 Int: + 44 191 222 6502
Newcastle upon Tyne             Web: http://www.staff.ncl.ac.uk/m.a.king/
United Kingdom, NE1 7RU              http://www.ceg.ncl.ac.uk/profiles2/m.a.king


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Message: 6
Date: Wed, 18 Jan 2012 08:35:13 -0800
From: Eric Steig <[hidden email]>
To: [hidden email]
Subject: [CRYOLIST] Antarctic land mask
Message-ID: <[hidden email]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Dear colleagues

I'm looking for a landmask (hopefully in lat/long coordinates) for
Antarctica, which includes the ice shelves.

The purpose here is to create DEMs at various resolutions appropriate
for use with climate models, using realistic topography.  Many climate
models by default use topography that does not accurately reflect the
ice shelves, which can wind up getting defined as 'ocean', which is
obviously a problem.

Your help is appreciated!

Eric Steig
University of Washington


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Message: 7
Date: Thu, 19 Jan 2012 08:49:24 +0100
From: Christian Rodehacke <[hidden email]>
To: [hidden email]
Subject: Re: [CRYOLIST] Antarctic land mask
Message-ID: <[hidden email]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Dear,

you might consider using the data set described in
"A consistent data set of Antarctic ice sheet topography, cavity
geometry, and global bathymetry"
(http://www.earth-syst-sci-data.net/2/261/2010)

Date are accessible through
http://doi.pangaea.de/10.1594/PANGAEA.741917?format=html


Have a nice and sunny day,

Christian Rodehacke

Max-Planck-Institut f?r Meteorologie
Hamburg, Germany

> I'm looking for a landmask (hopefully in lat/long coordinates) for
> Antarctica, which includes the ice shelves.
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