Installing required NetCDF-4 Native libraries¶
In order to write NetCDF-4 files, you must have the NetCDF-4 C library (version 4.3.1 or above) available on your system, along with all supporting libraries (HDF5, zlib, etc). The following sections provide quick reference installation instructions. For more detailed info, please take a look at the NetCDF-4 C Library Loading page.
Download the latest NetCDF4 installer from the NetCDF-C Windows Libraries page.
Install the executable
Make sure to add the bin folder of the package you have extracted, to the
Download the latest required dependencies (SZIP, ZLIB, HDF5) from the NetCDF-4 libraries section.
- As an instance:
wget ftp://ftp.unidata.ucar.edu/pub/netcdf/netcdf-4/hdf5-1.8.13.tar.gz wget ftp://ftp.unidata.ucar.edu/pub/netcdf/netcdf-4/zlib-1.2.8.tar.gz
Download the latest NetCDF-C source code from here.
- As an instance:
Build and install the required dependencies (The following instructions assume that you will install all NetCDF4 C libs on
/work/libs/nc4libs, as an instance).
./configure --prefix=/work/libs/nc4libs make check install
./configure --with-zlib=/work/libs/nc4libs --prefix=/work/libs/nc4libs --enable-threadsafe --with-pthread=/DIR/TO/PTHREAD make check install
Build the NetCDF C Library.
CPPFLAGS=-I/work/libs/nc4libs/include LDFLAGS=-L/work/libs/nc4libs/lib ./configure --prefix=/work/libs/nc4libs make check install
Make sure to add the lib folder of the package you have extracted, to the
GeoServer startup checks¶
If everything has been properly configured, you may notice a similar log message during GeoServer startup:
NetCDF-4 C library loaded (jna_path='null', libname='netcdf').
Netcdf nc_inq_libvers='4.3.1 of Jan 16 2014 15:04:00 $' isProtected=true
In case the native libraries haven’t been properly configured you will see a message like this, instead:
NetCDF-4 C library not present (jna_path='null', libname='netcdf').
Requesting a NetCDF4-Classic output file as WCS2.0 output¶
Specifying application/x-netcdf4 as Format, will return a NetCDF4-Classic output files, provided that the underlying libraries are available.