[Sea-mat] vertical datum conversion?

[Rich Signell]

Mark,

I don't know of any general Matlab tool to do this, but you should be
able to obtain the VDATUM conversion grids in NetCDF format from the
VDATUM folks (Ed Myers and Zizang Yang at NOOA).   These are triangle
based grids, generally from ADCIRC, that can then be interpolated in
Matlab using triterp.m or other methods.  We used this Matlab-based
approach in the Gulf of Maine to convert all MLLW and MLW soundings to
MSL.     I'm cc'ing Ed and Zizang on this, as they might have a
different solution (or correct me if I'm wrong!)

-Rich

On Thu, Feb 26, 2009 at 9:43 AM, Prater, Mark <mdp at weatherpredict.com> wrote:
> Hi all,
>
> I'm looking for a function (or Toolbox) that could convert elevations
> between various vertical datum used in the US, such as NGVD29, NAVD88,
> MSL, MLLW, etc.   I know there are several packages available from NOAA
> (VERTCON and VDatum) that do this, and I may end up using them, but a
> Matlab equivalent would streamline my life.
>
> Any suggestions?
>
> Thanks,
>
>  -- Mark
>
> ____________________
>
> Mark Prater
> Research Analyst
> WeatherPredict Consulting
> 919-239-8829 (Direct)
> 401-788-9031 (Local)
>
>
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>



-- 
Dr. Richard P. Signell   (508) 457-2229
USGS, 384 Woods Hole Rd.
Woods Hole, MA 02543-1598