Towards Safer Navigation of Hydrofoils: Avoiding Sudden Collisions with Cetaceans

• Autorzy: Kato H. , Yamada H. , Shakata K. , Odagawa A. , Kagami R. , Yonehara Y. , Terada M. , Sakuma K. , Mori H. , Tanaka I. , Sugioka H. , Kyo M.
• Języki publikacji: EN

Abstrakty

EN

Recently, sudden collisions between large cetaceans and high-speed hydrofoils have become problematic to Japanese sea transport in some localities. We therefore initiated a project to investigate ap-proaches for minimizing risk to both ships and cetaceans. Under the present project, the following three sub-projects are underway: clarifying which whale species are found near sea routes and determining their season-al variations; identifying whale species that have a high collision risk; and determining the unique acoustic characteristics of high-collision-risk cetaceans for the improvement of underwater speakers (UWS). By con-ducting acoustic surveys using novel methods, including an anatomical approach based on characteristics of the inner ear, the aim of this project is to accurately estimate the audible range of species with a high collision risk and improve the sounds generated by the UWS. Thus far, we have identified the cetacean species at high-risk in two major sea routes. In the next phase of the study we plan to develop an imaging system that recog-nizes a cetacean's unique blow using an infrared camera, in an attempt to warn of the approach of high-collision-risk whale species at an early stage by sounding an alarm.

Słowa kluczowe

EN

Hydrofoils; collision avoidance; Cetaceans, Safety at Sea; collision risk

• Wydawca: Faculty of Navigation, Gdynia Maritime University
• Czasopismo: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
• Rocznik: 2012
• Tom: Vol. 6, no. 1
• Strony: 143--147
• Opis fizyczny: Bibliogr. 8 poz., rys, tab.

Twórcy

autor

Kato H.

• Tokyo University of Marin Science and Technology (TUMSAT), Tokyo, Japan

autor

Yamada H.

• Tokyo University of Marin Science and Technology (TUMSAT), Tokyo, Japan

autor

Shakata K.

• Tokyo University of Marin Science and Technology (TUMSAT), Tokyo, Japan

autor

Odagawa A.

• Tokyo University of Marin Science and Technology (TUMSAT), Tokyo, Japan

autor

Kagami R.

• Tokyo University of Marin Science and Technology (TUMSAT), Tokyo, Japan

autor

Yonehara Y.

• Tokyo University of Marin Science and Technology (TUMSAT), Tokyo, Japan

autor

Terada M.

• KHI JPS Co., Ltd., Kobe, Japan

autor

Sakuma K.

• KHI JPS Co., Ltd., Kobe, Japan

autor

Mori H.

• Kawasaki Heavy Industries Ltd., Kobe, Japan

autor

Tanaka I.

• Kawasaki Heavy Industries Ltd., Kobe, Japan

autor

Sugioka H.

• Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan

autor

Kyo M.

• Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan

Bibliografia

• [1] Anonymous. 2010. Report of the joint IWC-ACCOBAMS workshop on reducing risk of collisions between vessels and cetaceans. Report of the joint IWC-ACCOBAMS work-shop on ship strikes :1-42.
• [2] Au, W.W.L. 2000. Hearing in whales and dolphins; An over-view. In W. W. L. Au, A. N. Popper & R. R. Fay (eds.) Hearing by whales and dolphins: 1-42. New York: Spring-er.
• [3] Backus, R. and W.E. Schevill. 1966. "Physeter clicks," in Whales, Porpoises and Dolphins. In K. S. Norris (ed.) Whales, dolphins, and porpoises. : 510-528. California: Berkeley.
• [4] Kato, H. 2009. Towards Avoiding Collisions between Super High-speed Vessels and Whales. The Ship & Ocean News-letter.217:4－5.
• [5] Odagawa, A. 2007. Fundamental research of collision avoidance between cetaceans and super high-speed vessels. Master Thesis, Tokyo University of Marine Science and Technology :1-105.
• [6] Shakata, K. 2009. Fundamental research of collision avoidance between cetaceans and super high speed vessels - Analysis for the occurrence of cetaceans on the sea routes and in-crease in precision of cetacean identification by the intro-duction of video camera research-. Master thesis, Tokyo University of Marine Science and Technology :1-90.
• [7] Yamada, H., L. Kagami, Y. Yonehara, H. Matsunaga, M. Te-rada, K. Okanoya, T. Kawamoto & H. Kato. 2011. Estimat-ed audible range of large cetacean for improvement of the Under Water Speaker. The TransNav2011 monographs.
• [8] Yonehara, Y., L. Kagami, H. Yamada, H. Kato, M. Terada & S. Okada. 2011. Feasibility study for infrared detecting of large cetaceans to avoid sudden collision. The Trans-Nav2011 monographs.