Ocean Data Analysis and Reanalysis
Major global ocean data analysis/reanalysis activities
| Projects | Sponsoring Agency | Model | Primary Goal |
| ECCO - GODAE | NOPP (NASA, NOAA, NSF) |
MITOGCM, near-global,1 - 0.3 , 23-46 levels |
Climate research |
| ECCO-2 | NASA | MITO GCM, global, coupled to sea ice model; 1/6 - 1/8, 50 levels | Climate research |
| SODA | NSF, NASA | POP, global, 0.4-0.25, 50 levels | Climate research |
| NCEP GODAS | NOAA | MOM3, near global, 1-0.3, 40 levels | Initialization of operational ENSO forecasts |
| GFDL | NOAA | MOM4, near global, 1-0.3, 50 levels | Climate research, initialization of coupled model |
| GMAO | NASA | Poseidon quasi-isopyncal model, near global, 5/8 x 1/3, 27 layers | Climate research, initialization of coupled model |
| HYCOM | NOPP (ONR, NOAA) | Hybrid coordinate model, global, 1/12, 26 layers | Mesoscale ocean nowcast; Navy operation |
| Project | Data Assimilated | Assimilation Method | Product Availability |
| ECCO - GODAE | Most satellite & in-situ data | Kalman filter/smoother; adjoint (4DVAR) | 1992 - present (both for adjoint and KF); ECCO servers |
| ECCO-2 | Starte with satellite SSH, SST, wind & in-situ T profiles | Greens Function; adjoint | Not yet available |
| SODA | T & S profiles, satellite SSH & SST | Optimal interpolation | 1940s-present UM IRI, IPRC servers |
| NCEP GODAS | T profiles, satellite SSH & SST | 3DVAR | 1980 - present |
| GFDL | T profiles, satellite SSH & SST | 3DVAR | 1980 - present; GFDL server |
| GMAO | T & S profiles, satellite SSH & SST | 3dVAR; ensemble Kalman filter | 1993 - present |
| HYCOM | Satellite SSH | 3DVAR; Kalman filter | Global product not yet available |
In addition, the Naval Research Laboratory has an assimilation project for realtime ocean nowcasting/forecasting.