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Investigation of hurricane Ivan using the coupled ocean-atmosphere-wave-sediment transport (COAWST) model

October 16, 2014

The coupled ocean–atmosphere–wave–sediment transport (COAWST) model is used to hindcast Hurricane Ivan (2004), an extremely intense tropical cyclone (TC) translating through the Gulf of Mexico. Sensitivity experiments with increasing complexity in ocean–atmosphere–wave coupled exchange processes are performed to assess the impacts of coupling on the predictions of the atmosphere, ocean, and wave environments during the occurrence of a TC. Modest improvement in track but significant improvement in intensity are found when using the fully atmosphere–ocean-wave coupled configuration versus uncoupled (e.g., standalone atmosphere, ocean, or wave) model simulations. Surface wave fields generated in the fully coupled configuration also demonstrates good agreement with in situ buoy measurements. Coupled and uncoupled model-simulated sea surface temperature (SST) fields are compared with both in situ and remote observations. Detailed heat budget analysis reveals that the mixed layer temperature cooling in the deep ocean (on the shelf) is caused primarily by advection (equally by advection and diffusion).

Citation Information

Publication Year 2014
Title Investigation of hurricane Ivan using the coupled ocean-atmosphere-wave-sediment transport (COAWST) model
DOI 10.1007/s10236-014-0777-7
Authors Joseph B. Zambon, Ruoying He, John C. Warner
Publication Type Article
Publication Subtype Journal Article
Series Title Ocean Dynamics
Series Number
Index ID 70129011
Record Source USGS Publications Warehouse
USGS Organization Woods Hole Coastal and Marine Science Center