[R-sig-Geo] Elevation data

[Bacou, Melanie]

R raster::getData("SRTM", ...) will return elevation rasters at 90m 
resolution.
See:
https://www.rdocumentation.org/packages/raster/versions/2.5-8/topics/getData 

http://www.cgiar-csi.org/data/srtm-90m-digital-elevation-database-v4-1

--Mel.

On 1/11/2017 6:26 AM, Miluji Sb wrote:
> Dear Michael,
>
> Thank you for your reply and the suggestions.
>
> Ideally, I would like a raster from which I can extract elevation at 1° x
> 1° resolution. I do not have much experience with working with DEM but have
> work with data such as GPW.
>
> I will definitely look at the datasets. Could you kindly suggest one that I
> could convert to raster and extract? Hope that's not a silly question.
>
> Sincerely,
>
> Milu
>
> On Wed, Jan 11, 2017 at 1:51 AM, Michael Sumner <mdsumner at gmail.com> wrote:
>
>> Passed through? Maybe you want ?raster::extract
>>
>> There are a few versions of global elevation on CRAN, necessarily at low
>> resolution but no overall summary afaik (someone should do this :).
>>
>> This is one: https://cloud.r-project.org/web/packages/GEOmap/index.html
>>
>> If you have the stomach for development versions of packages see elevatr:
>> https://github.com/jhollist/elevatr
>>
>> I tend to have the high-resolution files at hand because we use them
>> constantly, the main ones are Gebco14/Gebco08 and Etopo1/Etopo2 (from
>> Smith-Sandwell).
>>
>> There's a reasonable overview here, you probably should find a specific
>> data set that is at the resolution you are after already, and you can cite
>> its derivation for your work:
>>
>> http://vterrain.org/Elevation/global.html
>>
>> Cheers, Mike.
>>
>> On Wed, 11 Jan 2017 at 10:20 Miluji Sb <milujisb at gmail.com> wrote:
>>
>>> Dear all.
>>>
>>> Is there a way to download global elevation data at the 1° x 1° resolution
>>> in R using a given set of coordinates?
>>>
>>> I know about the getData() function but can many coordinates be passed
>>> through this? Thanks!
>>>
>>> Sincerely,
>>>
>>> Milu
>>>
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>>>
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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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