Major Edit: with the upcoming deprecation of rgdal and GDAL deprecating functionality with JPEG2000 this is no longer necessary. Further this work can be done with rNOMADS.
Good Afternoon;
I am currently working with .grib and .grib2 file formats as found here. I would like to analyse this data within R and through using the rgdal package I "should" be able to. When I run:
readGDAL("test.grib2")
I get the following error:
dec_jpeg2000: Unable to open JPEG2000 image within GRIB file.
Is the JPEG2000 driver available?test.grib2 has GDAL driver GRIB
and has 751 rows and 1500 columns
Error in validityMethod(as(object, superClass)) :
Geographical CRS given to non-conformant data: 539.88 -90.12 90.12
This leads me to believe the JPEG200 driver is my issue, it does not appear within gdalDrivers() and I am curious if there is a way to manually install this driver.
Noted on the GDAL site the JPEG2000 driver depends on libjasper, and has downloads to source driver files. How do I incorporate those drivers into my rgdal package for use?
Cheers
This issue can be dealt with using rNOMADS and these instructions to install wgrib2. Together this allows for the use of GRIB files.