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Naval Research Laboratory

HYCOM Consortium for Data-Assimilative Ocean Modeling

As of 20 November 2018, GOFS 3.0 is replaced by the Global Ocean Forecast System GOFS 3.1

GOFS 3.0
Real-time 1/12° Global HYCOM Nowcast/Forecast System

Mean plots

Global Ocean Forecast System (GOFS) 3.0

Experiment Number

Date of Update


Expt_90.9 09 September 2010 NOGAPS atmospheric forcing, NCODA mvoi
Expt_90.9 27 February 2013

NOGAPS atmospheric forcing, NCODA 3dvar
Expt_91.0 20 August 2013 NAVGEM 1.1 atmospheric forcing, NCODA 3dvar
Expt_91.1 08 April 2014 NAVGEM 1.2 atmospheric forcing, NCODA 3dvar
Expt_91.2 18 April 2016 NAVGEM 1.3 atmospheric forcing, NCODA 3dvar

Disclaimer: A numerical instability started to develop in the equatorial Atlantic Ocean on May 10, 2014. This was caused by the NCODA-3DVAR analysis not being able to converge to the correct solution. Because profiles are assimilated more than once, the instability persisted for some days. A correction to NCODA was implemented on May 20th.

System information

Click on the ocean of interest to see regional plots

Atlantic Ocean    Indian Ocean    Pacific Ocean    Polar Oceans    Global

Comparison with in situ data

NCODA Observations

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