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Peter Hacker¹
Y. Jia ¹, T. Jensen ¹, J. Potemra ¹, M. Yaremchuk¹

(1) International Pacific Research Center, School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu, USA

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Nowcasts and forecasts of near-shore conditions in the Hawaiian Islands chain and EEZ require representation of the open ocean eddy field (via Global HYCOM), high-resolution bathymetry including reef structures; high-resolution, regional atmospheric forcing fields and tides. The domain of interest is 15º-35ºN, 175ºE-150ºW. The University of Hawaii modeling system uses Global HYCOM at four lateral boundaries to initialize and force a suite of higher resolution nested models including HYCOM (primary focus), POM and ROMS. A regional-domain HYCOM is used to initialize and further downscale to a single-island domain HYCOM at 1/100º resolution. POM and ROMS are used for further downscaling. High-resolution, regional wind products are produced by UH collaborators. The GODAE products improve local solutions. The local models provide the required resolution to capture inter-island and near-shore processes.

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