Introduction

Our partnership will construct and demonstrate a relocatable observation and forecasting system for the littoral ocean. The demonstration will be conducted in the New York Bight at the Long-term Ecosystem Observatory (LEO-15), and instrument sub-sea natural littoral laboratory accessible over the Internet. A novel component of the adaptive observation network is the use of inexpensive REMUS Autonomous Underwater Vehicles (AUVs) to collect critical sub-surface data beneath the spatially extensive surface observations available from remote satellite and High-Frequency radar systems. A coastal ocean circulation model with coupled surface and bottom boundary layer modules will be used to direct the REMUS sampling strategies. The autonomous AUV network will be deployed to collect large-scale fields of velocity and density for model input, to measure small-scale mixing processes and to survey local bathymetry for eventual extension to uncharted regions. Methods for remote estimation of shallow water wave directional spectra from H-F radar data will be developed for real-time input to the combined wave and current bottom boundary layer model. A state-of-the-art coastal observation and modeling system will thus be evaluated in a data-rich environment as the first important stem towards robust portability.

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July 1998 Research Vessels

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