Information Dissemination about the Ocean

【Ocean Newsletter】Back issues

No.371 January 20, 2016

Continually Expanding Pacific Island, Nishinoshima ~volcano observations in sea areas by Japan Coast Guard~

Shigeru KASUGA
Director General, Hydrographic and Oceanographic Department, Japan Coast Guard
Taisei MORISHITA
Director for Earthquake Research, Hydrographic and Oceanographic Department, Japan Coast Guard

Since the eruption of Nishinoshima volcano and a resultant newborn island in the Ogasawara Islands was confirmed on November 20, 2013, the effusive outflow of lava over two years has greatly increased the size of the island. A bathymetric survey around the island carried out by the Japan Coast Guard in the summer of 2015 revealed that this eruption of Nishinoshima volcano was one of the largest domestic eruptions in terms of expelled volcanic material since the end of World War II. As the broad extent of Japan's jurisdictional waters is dependent on volcanic islands, observation activities are important not only for the safety of residents and navigation, but also from the perspective of the delimitation of Japan's jurisdictional waters.
Selected Papers No.21

Using Big Data from Ships ~introducing activities of the Smart Navigation System Research Group~

Hiroshi MORONO
Senior Advisor, Terasaki Electric Co., Ltd.

The main objectives of the Japan Ship Machinery & Equipment Association's Smart Navigation System Research Group are to develop technologies for the Internet of Things (IoT) as a base for making use of big data accumulated by machines and equipment installed on ships, as well as to promote the international standardization of such technologies. This article explains the usage of big data made possible by the application of IoT.

Vilhjalmur Stefansson and the Arctic

Kristin NEWTON
Glass Artist

Only 100 years ago, oceans were still a mystery, vast and unexplored. The Arctic and Antarctica were challenges that explorers were determined to conquer. Vilhjalmur Stefansson went on three expeditions to the Alaskan and Canadian Arctic between 1906 and 1918, making many discoveries along the way. Having narrowly escaped death on several occasions, he believed that, in order to survive in extreme environments "Good health and bodily strength, while desirable, are secondary. The chief thing is mental attitude."

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