The Interpolation library (EMOSLIB) includes Interpolation software and BUFR & CREX encoding/decoding routines. It is used by the ECMWF meteorological archival and retrieval system (MARS) and also by the ECMWF workstation Metview.

This software covers :

• Interpolating fields
  
  • spectral coefficients to spectral coefficients
  • spectral coefficients to rotated spectral coefficients
  • spectral coefficients to regular latitude-longitude grids
  • spectral coefficients to regular gaussian grids
  • spectral coefficients to quasi-regular gaussian grids
  • regular latitude-longitude grids to regular latitude-longitude grids
  • regular latitude-longitude grids to regular gaussian grids
  • regular gaussian grids to regular gaussian grids
  • regular gaussian grids to regular latitude-longitude grids
  • quasi-regular gaussian grids to regular latitude-longitude grids
  • quasi-regular gaussian grids to regular gaussian grids
• encoding/decoding of WMO FM-94 BUFR BUFR code messages
• encoding/decoding of WMO FM-95 CREX CREX code messages
• handling pure binary unix files
• multiple(Temperton's) FFT routines (from release 000340 onwards)

For the encoding/decoding of WMO FM-92 GRIB GRIB code messages we strongly recommend the use of the ecCodes.

A new cycle of this public version is created from time to time to consolidate operational extensions.