The HYCOM consortium is a multi-institutional effort sponsored by the National Ocean Partnership Program (NOPP), as part of the U. S. Global Ocean Data Assimilation Experiment (GODAE), to develop and evaluate a data-assimilative hybrid isopycnal-sigma-pressure (generalized) coordinate ocean model (called HYbrid Coordinate Ocean Model or HYCOM).

Data Server

HYCOM.org provides access to near real time global HYCOM + NCODA based ocean prediction system output. The ocean prediction system runs daily at the Navy DoD Supercomputing Resource Center. Upon completion, these data are remotely copied to our local HYCOM.org servers for additional processing. Daily data is typically accessible within 48-hrs of the initial runtime.

This site also provides access to several other global and regional datasets. The data are in NetCDF format and can be accessed using OPeNDAP enabled clients. Click here for a list of pre-packaged OPeNDAP enabled clients. OPeNDAP URL's for all datasets are available from the HYCOM THREDDS Catalog.

Data Assimilative Runs:

  • HYCOM + NCODA Global 1/12° Analysis
  • Date Range: 2008-09-19 to Present

  • HYCOM + NCODA Global 1/12° Reanalysis
  • Date Range: 1992-10-02 to 2012-12-31

  • HYCOM + NCODA Gulf of Mexico 1/25° Analysis
  • Date Range: 2003-01-01 to Present


  • (NAVy Global Environmental Model)

  • (Navy Operational Global Atmospheric Prediction System)

  • (National Centers for Environmental Prediction Climate Forecast System Reanalysis


    Need Help?

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    OPeNDAP Problems?

    Read the Quick Start Guide

    Querying the NetCDF Subset Service?

    Read the NCSS Reference

    Need Data Access?

    Browse the Dataserver, Use THREDDS, or Use FTP

    Alphabet Soup

    northward sea water velocity
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