The NCEP general interpolation library contains Fortran 90 subprograms to be used for interpolating between nearly all grids used at NCEP. The library is particularly efficient when interpolating many fields at one time. It also contains routines for spectral transforms and other processing, including those previously contained in the NCEPLIBS-sp library.
This is part of the NCEPLIBS project.
There are currently six interpolation methods available in the library:
- bilinear
- bicubic
- neighbor
- budget
- spectral
- neighbor-budget
For full documentation see https://noaa-emc.github.io/NCEPLIBS-ip/.
To submit bug reports, feature requests, or other code-related issues including installation and usage questions, please create a GitHub issue. For general NCEPLIBS inquiries, contact Ed Hartnett (secondary point of contact Alex Richert).
- NCEP/EMC Developers
Code Manager: Alex Richert
This package requires a BLAS/LAPACK library to provide several LU decomposition-related routines, and requires CMake (version 3.15+) to build. In spack-stack, OpenBLAS will be used as the provider of BLAS/LAPACK routines for all compilers.
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/path/to/install /path/to/NCEPLIBS-ip
make -j2
make test # (or ctest --verbose)
make install
Most routines and any public interfaces required can be accessed by adding use ip_mod to your Fortran code. Most spectral transform and processing subroutines
can be accessed by calling them in your code (no use statement) and linking
to the ip library at build time.
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