[R] How to read a grib2 file

[Debasish Pai Mazumder]

Thanks for your suggestion. I have checked and I don't have JPEG2000 in
ggdalDrivers()). I am pretty new in R. I don't understand how to do I
implement JPEG2000 (JP2OpenJPEG driver) in gdalDrivers() so that I can read
grib2 files

with regards
-Deb

On Sat, Sep 10, 2016 at 2:33 AM, Michael Sumner <mdsumner at gmail.com> wrote:

>
>
> On Sat, 10 Sep 2016 at 07:12 Debasish Pai Mazumder <pai1981 at gmail.com>
> wrote:
>
>> Hi
>> I am trying to read a grib2 file in R.
>>
>> Here is my script
>>
>> library(rgdal)
>> library(sp)
>> library(rNOMADS)
>> gribfile<-"tmax.01.2011040100.daily.grb2"
>> grib <- readGDAL(gribfile)
>>
>> I am getting following error :
>>
>> dec_jpeg2000: Unable to open JPEG2000 image within GRIB file.
>> Is the JPEG2000 driver available?tmax.01.2011040100.daily.grb2 has GDAL
>> driver GRIB
>> and has 190 rows and 384 columns
>> dec_jpeg2000: Unable to open JPEG2000 image within GRIB file.
>> Is the JPEG2000 driver available?dec_jpeg2000: Unable to open JPEG2000
>> image within GRIB file.
>>
>>
> Hi there, please check if JPEG2000 is in the gdalDrivers() list, i.e.  in
>
> rgdal::gdalDrivers()$name
>
> You are looking for one starting with "JP2" as per the list next to the
> "JPEG2000" rows here:
>
> http://gdal.org/formats_list.html
>
> I have  JP2OpenJPEG on one system, but not (for example) on the Windows
> CRAN binary for rgdal, which is the only readily available Windows build
> for this package.
>
> I you don't have it, you might try on a system that has the JP2OpenJPEG driver,
> or ask someone to try on your behalf. You'd want to find out if that will
> enable this read for you before investing time in the Linux configuration.
>
> It's not too hard to set up a Linux system for this, but does assume a bit
> of experience on your part. Some of the docker images in the rockerverse
> have this all sorted I believe, but it's been a while since I used them.
>
> https://hub.docker.com/u/rocker/
>
> Cheers, Mike.
>
>
>
>
>> Cheers
>> -Deb
>>
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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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