HYCOM + NCODA Global 1/12° GOFS 3.1 41-layer Analysis (GLBy0.08 Experiment 9X.X)

The HYCOM Consortium provides a gridded analysis product based on Hybrid Coordinate ocean Model (HYCOM) and the Navy Coupled Ocean Data Assimilation (NCODA). We provide 0z daily snapshots for the following experiments:


expt_93.0 (Dec-4-2018 to yesterday + 7 day Forecasts)
There are missing data.

Data Assimilation

The system uses the Navy Coupled Ocean Data Assimilation (NCODA) system (Cummings, 2005; Cummings and Smedstad, 2013) for data assimilation. NCODA uses the 24-hour model forecast as a first guess in a 3D variational scheme and assimilates available satellite altimeter observations, satellite, and in-situ sea surface temperature as well as in-situ vertical temperature and salinity profiles from XBTs, Argo floats and moored buoys. Surface information is projected downward into the water column using Improved Synthetic Ocean Profiles (Helber et al., 2013).

What are the major differences between GOFS 3.1 & GOFS 3.0?

Note: Thia dataset is enormous. Please download small volumes at a time.

Disclaimer:

This dataset is created at NRL and provided "as is".

References

Variables
SSH (m), eastward velocity (m/s), northward velocity (m/s), temperature (not potential temperature) (°C), and salinity (psu).
Zonal Global by 0.08 deg
Meridional 0.04° resolution between 80°S and 90°
Vertical 0, 2, 4, 6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 125, 150, 200, 250, 300, 350, 400, 500, 600, 700, 800, 900, 1000, 1250, 1500, 2000, 2500, 3000, 4000, 5000 m and at bottom 
Temporal Dec 4, 2018 to yesterday + 7 day forecasts: daily snapshot at 0Z; There are missing data.
Static? no
Volume >1.5 Tb/year
Server public:
Source HYCOM Consortium 
Acquired June 22, 2020 and updated daily
APDRC contact
Supplements Global Ocean Forecasting System (GOFS) 3.1 website