Hydrodynamics of Intermittently Closing and Opening Lakes and Lagoons

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Hydrodynamics of Intermittently Closing and Opening Lakes and Lagoons. Intermittently closing and open lakes and lagoons are shallow coastal water bodies that are connected intermittently to the ocean. Sixty of the 135 estuaries in New South Wales are considered to be ICOLL's. The closure of the Lake/Lagoon entrance to the ocean prevents water exchange that can lead to poor water quality. Detailed field and numerical model studies in two ICOLLS (Coila Lake and Wamberal Lagoon) are proposed using modern instrumentation. It is recognised that a fundamental understanding of the circulation and mixing characteristics of ICOLLs is imperative for the development of proper management strategies for these systems.