Ephraim Paul

Akwa Ibom State University, Marine Engineering, Faculty Member

Texas A&M University, Ocean Engineering, Post-Doc

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Ephraim Paul is an award-winning coastal ocean engineer who combines field, lab and numerical model-based methods to provide maritime research and engineering consulting services. His research interests are geared towards a better understanding of coastal ocean dynamics. Tested adaptive dredged materials management plan; analyzed environmental loads, evaluated risks, bids for dredging, seaports, and coastal infrastructures. Characterized ocean renewable energy resources for power generation; and instituted strategies that saved 40% costs in Atabrikang hydrographic, geophysical and ship channel projects.
Address: College Station, Texas, United States

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James Kaihatu

Texas A&M University

Ephraim Paul

Texas A&M University

Olusegun Dada

Federal University of Technology Akure

University of South Florida

Jouko Rissanen

Mark Russell

G. Sutton

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Navigation Channel Depth for Ibaka Deep Seaport, Nigeria.

A natural harbor is discovered in Ibaka Bay, Nigeria. Ibaka Bay has an average area of 50 km 2 an... more A natural harbor is discovered in Ibaka Bay, Nigeria. Ibaka Bay has an average area of 50 km 2 and centers on Latitude 4.65 o N and Longitude 8.34 o E. The harbor has an average non-dredged draft of 13.5 meters. Ibaka Bay is part of Cross River Estuary, which empties into the northern Gulf of Guinea. In 2003, Akwa Ibom State Government proposed siting a deep seaport in Ibaka. Preliminary investigations showed that the proposed deep seaport has several competitive and comparable advantages over existing seaports in the region. This deep harbor has been locally observed and monitored for over six decades. Sediment processes seemed to have reached equilibrium state in the Bay. Tom Shot Island at the Southwest boundary of the Bay shields the harbor from South-south-west Atlantic swells and other extreme events. The present study investigated the viability of deepening the approach navigation channel to the Bay as part of a larger study on stability of morphodynamics in Ibaka Bay. Field studies were conducted, using locally made drifters, to collect current and wave data as well as information on the dominant sediment characteristics in Ibaka Bay. Sampled data were analyzed and used to calibrate and verify a coupled wave, circulation, and sediment numerical model. Numerical results indicate that the flushing characteristics of the Bay will not be hindered when the navigation channel and turning basin for the deep seaport are dredged to accommodate larger vessels. Morphological characteristics of the site also attenuate higher wave energy such that increased offshore wave action has little or no impacts on the inner harbor where vessels will berth. Finally, the harbor is estimated to have minor maintenance dredging requirements with a five-year dredging window.

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Navigation Channel Depth for Ibaka Deep Seaport, Nigeria.

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Ephraim Paul

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