[R-sig-Geo] WorldClim Version2

[Mirza Cengic]

Hi Andy,

for quick and dirty solution you can replace the url that the getData()
function reads for bioclim data. You can find the source code of the
function here https://github.com/cran/raster/blob/master/R/getData.R#L277
(note
that there's if/else flow for different resolutions of climate data). From
there you can make a custom function, or recompile the package if you
prefer it that way.

URL for the bioclimatic layers is
http://biogeo.ucdavis.edu/data/worldclim/v2.0/tif/base/wc2.0_RES_bio.zip,
where "RES" can be 10m, 5m, 2.5m, or 30s, and you'll need to play around a
bit with how the theurl string is being created in relation with the
resolution.

M

On Wed, Oct 4, 2017 at 2:00 PM, Mirza Cengic <m.cengic at science.ru.nl> wrote:

> Hi Andy,
>
> for quick and dirty solution you can replace the url that the getData()
> function reads for bioclim data. You can find the source code of the
> function here
> <https://github.com/cran/raster/blob/master/R/getData.R#L277>(note that
> there's if/else flow for different resolutions of climate data). From there
> you can make a custom function, or recompile the package if you prefer it
> that way.
>
> URL for the bioclimatic layers is http://biogeo.ucdavis.edu/
> data/worldclim/v2.0/tif/base/wc2.0_RES_bio.zip, where "RES" can be 10m,
> 5m, 2.5m, or 30s, and you'll need to play around a bit with how the theurl
> string is being created in relation with the resolution.
>
> M
>
> On Thu, Sep 28, 2017 at 9:44 AM, Marcelino de la Cruz Rot <
> marcelino.delacruz at urjc.es> wrote:
>
>> I'm afraid it don't.
>>
>> At least in version 2.5.8, as it  appears from  this line in .wordclim():
>>
>>  theurl <- paste("http://biogeo.ucdavis.edu/data/climate/worldclim/1_4/
>> grid/cur/",
>>             zip, sep = "")
>>
>> Marcelino
>>
>>
>>
>> El 28/09/2017 a las 4:31, Bacou, Melanie escribió:
>>
>>>
>>> I would assume `raster::getData("worldclim", ...)` uses WorldClim
>>> version 2?
>>>
>>> --Mel.
>>>
>>>
>>> On 09/25/2017 05:14 PM, Andy Bunn wrote:
>>>
>>>> Great. Thanks Marcelino. I have all the data dowloaded. I'm surprised
>>>> that
>>>> there isn't a dedicated package for worldclim yet ‹ making one that ties
>>>> in with packages like BIEN would be great. Perhaps I'll work on it
>>>> someday.
>>>>
>>>> -A
>>>>
>>>> On 9/25/17, 11:32 AM, "Marcelino de la Cruz Rot"
>>>> <marcelino.delacruz at urjc.es>  wrote:
>>>>
>>>> Hello Andy,
>>>>>
>>>>> I've been using raster to play with WordlClim 2.0 and it works fine.
>>>>> For
>>>>> example:
>>>>>
>>>>> # Download 2.5' arc P data of worldclim 2.0
>>>>> # The file is 68.5 MB so it takes some time to download
>>>>> P_url<-
>>>>> "http://biogeo.ucdavis.edu/data/worldclim/v2.0/tif/base/wc2.
>>>>> 0_2.5m_prec.zi p"
>>>>> download.file(P_url, destfile="wc2.0_2.5m_prec.zip")
>>>>> unzip("wc2.0_2.5m_prec.zip")
>>>>>
>>>>> #  Generate a stack object  with all monthly precipitation layers
>>>>> P_filenames<- paste("wc2.0_2.5m_prec_", c(paste(0,1:9, sep=""), 11,12),
>>>>> ".tif",sep="")
>>>>>
>>>>> prec2.5<- stack(P_filenames)
>>>>>
>>>>> # Compute annual precipitation as a raster layer
>>>>> P2.5<- sum(prec2.5)
>>>>>
>>>>> # etc.
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Marcelino
>>>>>
>>>>>
>>>>> El 25/09/2017 a las 19:42, Andy Bunn escribió:
>>>>>
>>>>>> Hello all, is anybody aware of a R package that gracefully works with
>>>>>> version 2 of the WorldClim data?
>>>>>>
>>>>>> http://worldclim.org/version2
>>>>>>
>>>>>>
>>>>>> I have all the data extracted locally but I'm wondering if there is
>>>>>> something akin to getData in raster that will work with version 2 and
>>>>>> not
>>>>>> 1.4 as (the brilliant) raster package currently does.
>>>>>>
>>>>>> Many thanks, Andy
>>>>>>
>>>>>> _______________________________________________
>>>>>> R-sig-Geo mailing list
>>>>>> R-sig-Geo at r-project.org
>>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>>>>> .
>>>>>>
>>>>>> --
>>>>> Marcelino de la Cruz Rot
>>>>> Depto. de Biología y Geología
>>>>> Física y Química Inorgánica
>>>>> Universidad Rey Juan Carlos
>>>>> Móstoles España
>>>>>
>>>>> _______________________________________________
>>>> R-sig-Geo mailing list
>>>> R-sig-Geo at r-project.org
>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>>>
>>>
>>> .
>>>
>>
>>
>> --
>> Marcelino de la Cruz Rot
>> Depto. de Biología y Geología
>> Física y Química Inorgánica
>> Universidad Rey Juan Carlos
>> Móstoles España
>>
>> _______________________________________________
>> R-sig-Geo mailing list
>> R-sig-Geo at r-project.org
>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>
>
>
>
> --
> *Mirza Čengić*
>
> *Junior Researcher | Department of Environmental Science*
> Radboud University | Heyendaalseweg 135
> 6525 AJ Nijmegen | The Netherlands
>
> +31 657020823 <+31%206%2057020823> | +38761908392 <+387%2061%20908%20392>
> Skype: mirzacengic
> <https://www.linkedin.com/in/mirzacengic>
>



-- 
*Mirza Čengić*

*Junior Researcher | Department of Environmental Science*
Radboud University | Heyendaalseweg 135
6525 AJ Nijmegen | The Netherlands

+31 657020823 | +38761908392
Skype: mirzacengic
<https://www.linkedin.com/in/mirzacengic>

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