[R-sig-Geo] GLOBE DEM in R?

[Ben Tupper]

Hi,

You might give the Natural Earth topography a shake...

https://github.com/BigelowLab/nearth

I don't know how it compares to the ETOPO datasets.

Cheers,
Ben

> On Nov 9, 2016, at 7:02 PM, Michael Sumner <mdsumner at gmail.com> wrote:
> 
> The only available global DEM in an R package that I know is geomapdata
> which has Etopo5 (or equivalent) in it.
> 
> Otherwise there is marmap with getNOAA.bathy() function, and I would look
> at xtractomatic as well for access to online services.
> 
> I tend to keep Etopo1, Etopo2, GEBCO14, and a bunch of other non-global
> ones in local files since we use them intensively, and happy to help if you
> need guidance with any of those.
> 
> There is IBCSO in polar form the southern hemisphere, but not sure if
> there's an equivalent for the north?
> 
> Generally I go for the NetCDF version (either .nc or .grd) now that ncdf4
> is fully supported by CRAN, otherwise use GeoTIFF if they provide it.
> Sometimes need some augmentation when reading with raster() to make sure
> things are interpreted fully/perfectly, but mostly it's pretty good.
> 
> If there are other sources I'm keen to hear as well.
> 
> Cheers, Mike.
> 
> 
> 
> On Thu, 10 Nov 2016 at 09:08 Andy Bunn <Andy.Bunn at wwu.edu> wrote:
> 
>> Is the GLOBE DEM accessible in R via a package? I usually use
>> raster::getData() when I need elev data but I need to sample a SPDF of a
>> few thousand points with latitudes higher than the SRTM covers. Thoughts
>> appreciated.
>> 
>> -Andy
>> 
>> 
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> -- 
> Dr. Michael Sumner
> Software and Database Engineer
> Australian Antarctic Division
> 203 Channel Highway
> Kingston Tasmania 7050 Australia
> 
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> 
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Ben Tupper
Bigelow Laboratory for Ocean Sciences
60 Bigelow Drive, P.O. Box 380
East Boothbay, Maine 04544
http://www.bigelow.org