GSI observations

Data format for GSI

Observation data in forms other than PREPBUFR must be converted to PREPBUFR before they can be used in GSI.

  • Introduction and examples of how to decode and encode BUFR from NCEP website.
  • BUFR lib is also included in this website. BUFR document also can be found in NCAR DSS.
  • PREPBUFR document at NCEP: see
  • Observation data processing at NCEP (by Dennis Keyser): see
  • Data Hub provide PREPBUFR

    The follow is a list of data center that has meteorological histroy data in PREPBUFR format :

    • The NCAR CISL Research Data Archive (RDA): NCAR DSS.
    • NCEP public server: NCEP
    • For Example: NAM products including observations available at: ftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/nam/prod/