HYCOM + NCODA Global 1/12° Analysis

HYCOM + NCODA Global 1/12° Analysis (GLBa0.08_rect)

The HYCOM Consortium provides near real-time global ocean prediction system based on the Hybrid Coordinate ocean Model (HYCOM) and the Navy Coupled Ocean Data Assimilation (NCODA). The system runs daily and produces a five day hindcast (analysis) and a five day forecast.

Current Experiments List:

Experiment Date Project Ver. Assimilation Forcing Notes
expt_91.2 4/18/2016 -
Present		 GOFS 3.0 2.2 NCODA (3DVAR) NAVGEM1.3  Analytic diurnal cycle applied to shortwave forcing
expt_91.1 4/5/2014 -
4/18/2016		 GOFS 3.0 2.2 NCODA (3DVAR) NAVGEM1.2  Analytic diurnal cycle applied to shortwave forcing
expt_91.0 8/21/2013 -
4/4/2014		 GOFS 3.0 2.2 NCODA (3DVAR) NAVGEM1.1  Analytic diurnal cycle applied to shortwave forcing
expt_90.9 1/3/2011 -
8/20/2013		 GOFS 3.0 2.2 NCODA (MVOI) NOGAPS  Vertical levels have changed since 90.8; Analytic diurnal cycle applied to shortwave forcing
expt_90.8 5/7/2009 -
1/2/2011		 GOFS 3.0 2.2 NCODA (MVOI) NOGAPS  
expt_90.6 9/19/2008 -
5/6/2009		 GOFS 3.0 2.2 NCODA (MVOI) NOGAPS  
(Credit: Kellen Rosburg)

See http://www.hycom.org/dataserver/glb-analysis for further details of these experiments.

Disclaimer:
This is a demonstration product from the HYCOM Consortium and is provided as is. HYCOM Consortium does not warrant or suggest that this data is fit for any particular purpose. Further, neither COAPS nor HYCOM consortium guarantee availability, service updates or timely data delivery.



References:
Bleck, R., and D. Boudra, 1981: Initial testing of a numerical ncean circulation model using a hybrid (quasi-isopycnic) vertical coordinate. J. Phys. Oceanogr., 11, 755-770.

Bleck, R., and S. Benjamin, 1993: Regional weather prediction with a model combining terrain-following and isentropic coordinates. Part I: Model description. Mon. Wea. Rev., 121, 1770-1785.

Halliwell, G., R. Bleck, and E. Chassignet, 1998: Atlantic Ocean simulations performed using a new hybrid-coordinate ccean model. EOS, Trans. AGU, Fall 1998 AGU meeting.

Large, W. G., J. C. Mc Williams, and S. C. Doney, 1994: Oceanic vertical mixing: A review and a model with a nonlocal boundary layer parameterization. Rev. Geophys., 32, 363-403.

Large, W.G., G. Danabasoglu, S.C. Doney, and J.C. McWilliams, 1997: Sensitivity to surface forcing and boundary layer mixing in a global ocean model: Annual-mean climatology. J. Phys. Oceanogr., 27, 2418-2447.


Variables
Potential Temperature (°C), Salinity (psu), Eastward & Northward velocity (m/s), Surface downward heat flux in air (w/m2), Water flux into ocean (kg/m2/s), Surface temperature trend (degC/day), Surface Salinity trend (psu/day), Sea surface elevation (m), Ocean mixed layer thickness [0.20 decC and 0.03 kg/m3]
Zonal Global by 0.08 deg
Meridional 78.64S - 46.88N by ~0.08 deg
Vertical 0, 10, 20, 30, 50, 75, 100, 125, 150, 200  
Temporal 2D: Dec 28, 2008 to Aug 20, 2013 by 1 day [hycom2d]
      Aug 21, 2013 to Nov 27, 2018 [hycom2db]
3D: May 8, 2008 to Nov 27, 2018 by 1 day
Static? no
Volume 373MB per 3D variable per day
Server public:
Source HYCOM Consortium 
Acquired Feb 15, 2013 (Updated periodically)
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