Science

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.