Carl,
If you look at the THREDDS dataset level (before you get to the NetCDF
Subset service)
http://coast-enviro.er.usgs.gov/thredds/bathy_catalog.html?dataset=bathy/srtm30plus_v4.nc
you will see a link to the website, which describes how this data was
constructed.
A note to SRTM30+ users: For coastal regions, the SRTM30 plus
Version 1 data is actually a better product than Version 4, as some
nasty tracklines snuck in in Version 2-4. This is supposed to be
cleared up in Version 5, but that isn't out yet. so I left version 1
up.
See all bathy sets available at:
http://coast-enviro.er.usgs.gov/thredds/bathy_catalog.html
Glad you found this useful.
-Rich
--
Dr. Richard P. Signell (508) 457-2229
USGS, 384 Woods Hole Rd.
Woods Hole, MA 02543-1598
On Wed, Nov 5, 2008 at 9:35 AM, Carl Drews <drews@xxxxxxxx> wrote:
> Unidata -
>
> The topo/bathymetry server at
>
> http://coast-enviro.er.usgs.gov/thredds/ncss/grid/bathy/srtm30plus_v4.nc/dataset.html
>
> is extremely useful! What is the source of this data? Somewhere I
> thought I read that you had combined Smith & Sandwell bathymetry with
> SRTM30 topography, but I can't find that reference again.
>
> Carl
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