HR: 17:00h
AN: A52F-04 INVITED     [PDF]
TI: Ocean Prediction with the HYbrid Coordinate Ocean Model (HYCOM)
AU: Chassignet, E P
EM: echassignet@rsmas.miami.edu
AF: RSMAS/MPO, University of Miami, 4600 Rickenbacker Cway, Miami, FL 33149 United States
AU: Hogan, P J
EM: hogan@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7304, Stennis Space Center, MS 39529 United States
AU: Hurlburt, H E
EM: hurlburt@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7304, Stennis Space Center, MS 39529 United States
AU: Metzger, E J
EM: metzger@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7304, Stennis Space Center, MS 39529 United States
AU: Smedstad, O
EM: smestad@nrlssc.navy.mil
AF: Planning Systems Incorporated, MSAAP, Bldg 9121, Stennis Space Center, MS 39529 United States
AU: * Wallcraft, A J
EM: wallcraft@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7304, Stennis Space Center, MS 39529 United States
AB: This DoD HPC Challenge project is part of a coordinated effort to provide ocean prediction on eddy-resolving scales globally. The long-term objectives are to simulate, understand, nowcast and forecast the global ocean circulation. Traditional ocean models use a single coordinate type to represent the vertical, but no single approach is optimal for the global ocean. The HYbrid Coordinate Ocean Model (HYCOM) combines all three approaches choosing the optimal distribution at every time step. It is isopycnal in the open, stratified ocean, but makes a dynamically smooth transition to a terrain-following coordinate in shallow coastal regions, and to z-level coordinates in the mixed layer and/or unstratified seas. This approach retains the advantages that each individual vertical coordinate system offers, HYCOM has been configured for the North Atlantic and Pacific Ocean with a resolution of 1/12 degree and globally with a resolution of 3/4 degree (equatorial). We will first report on the performance of the model and on the ability of the hybrid coordinate to accurately represent the oceanic circulation in these three configurations. We will then describe a near real-time data assimilation version of the 1/12 degree North Atlantic, a component of the Global Ocean Data Assimilation Experiemnt (GODAE).
UR: http://hycom.rsmas.miami.edu
DE: 1832 Groundwater transport
DE: 3337 Numerical modeling and data assimilation
DE: 4255 Numerical modeling
DE: 4263 Ocean prediction
DE: 4504 Air/sea interactions (0312)
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting