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Featured researches published by Natsuhiko Otsuka.


Maritime Policy & Management | 2018

Examining quick delivery at an affordable cost by the NSR/SCR-combined shipping in the age of Mega-ships

Masahiko Furuichi; Natsuhiko Otsuka

ABSTRACT The Mega-ships, the maximum containerships represented by 20,000TEU-class (LOA:400m, Breadth: 60m, Draft: 16m) which are able to transit both the Malacca Strait and the Suez Canal, have emerged in 2013, aiming at lower shipping cost by economy of scale. At the same time, they inevitably increased port calls in a rotation to collect more cargo demand, resulting in the longer transit time than ever before. Taking this trend into account, the authors proposed the quick delivery scenario between East Asia and Northwest Europe by the NSR (Northern Sea Route)/SCR (Suez Canal Route)-combined shipping, of which 4,000 TEU ice-class containership transits the NSR during the summer season and the SCR in the wintertime, based on a year-round scheduled operation. The quick delivery scenario gives the shorter transit time at an affordable shipping cost depending on the NSR navigable season length. However, the quick delivery scenario cannot avoid uncertainties in navigation especially via the NSR in the summer season, due to rough weather, sea ice, low visibility and icing in the icy water section of the NSR. The authors preliminarily concluded that a year-round scheduled operation of the NSR/SCR-combined shipping will be secured, if the practical navigation schedule is appropriately prepared.


Maritime economics and logistics | 2015

Proposing a common platform of shipping cost analysis of the Northern Sea Route and the Suez Canal Route

Masahiko Furuichi; Natsuhiko Otsuka


22nd International Conference on Port and Ocean Engineering under Arctic Conditions (POAC'13)Federation of Finnish Learned SocietiesABSEspoo, City of, FinlandVTT Technical Research Centre of FinlandSTX FinlandStatoil ASAAker ArcticArctech | 2013

Study on Feasibility of the Northern Sea Route from Recent Voyages

Natsuhiko Otsuka; Koh Izumiyama; Masahiko Furuichi


Archive | 2014

Economic feasibility of finished vehicle and container transport by NSR/SCR-combined shipping between East Asia and Northwest Europe

Masahiko Furuichi; Natsuhiko Otsuka


Archive | 2014

ECONOMIC FEASIBILITY OF CONTAINER, FINISHED VEHICLE AND LNG TRANSPORT BY ARCTIC SHIPPING

Masahiko Furuichi; Natsuhiko Otsuka


Proceedings of the International Conference on Port and Ocean Engineering Under Arctic Conditions | 2005

Development of a Recovery Unit for Oil in Ice

Koh Izumiyama; Shigeo Kanada; Shotaro Uto; Natsuhiko Otsuka


The Cryosphere Discussions | 2018

Medium-range predictability of early summer sea ice thickness distribution in the East Siberian Sea: Importance of dynamical and thermodynamic melting processes

Takuya Nakanowatari; Jun Inoue; Kazutoshi Sato; Laurent Bertino; Jiping Xie; Mio Matsueda; Akio Yamagami; Takeshi Sugimura; Hironori Yabuki; Natsuhiko Otsuka


The Cryosphere | 2018

Medium-range predictability of early summer sea ice thickness distribution in the East Siberian Sea based on the TOPAZ4 ice–ocean data assimilation system

Takuya Nakanowatari; Jun Inoue; Kazutoshi Sato; Laurent Bertino; Jiping Xie; Mio Matsueda; Akio Yamagami; Takeshi Sugimura; Hironori Yabuki; Natsuhiko Otsuka


Journal of Japan Society of Civil Engineers | 2018

SUMMARY OF THE SPECIAL SESSION “CURENT STATUS AND PERSPECTIVE OF THE NORTHERN SEA ROUTE”

Natsuhiko Otsuka


Journal of Japan Society of Civil Engineers | 2018

RELATIONSHIP BETWEEN SEA ICE CONDITION AND NAVIGABLE SPEED ALONG THE NORTHERN SEA ROUTE

Natsuhiko Otsuka; Xiaoyang Li; Koh Izumiyama

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Masahiko Furuichi

Saint Petersburg State University

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Hironori Yabuki

National Institute of Polar Research

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Jun Inoue

National Institute of Polar Research

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Kazutoshi Sato

National Institute of Polar Research

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Takeshi Sugimura

National Institute of Polar Research

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Koh Izumiyama

Ontario Ministry of Transportation

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