Tanegashima Oceans

Tanegashima is greatly affected by the Pacific Ocean which works to moderate temperatures on the island. Air temperature differences of only a few degrees from morning to night and from day to day are typical, especially during the Summer months.
Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, bounded by Asia and Australia in the west, and the Americas in the east.

At 165.25 million square kilometres (63.8 million square miles) in area, this largest division of the World Ocean – and, in turn, the hydrosphere – covers about 46% of the Earth's water surface and about one-third of its total surface area, making it larger than all of the Earth's land area combined. The equator subdivides it into the North Pacific Ocean and South Pacific Ocean, with two exceptions: the Galápagos and Gilbert Islands, while straddling the equator, are deemed wholly within the South Pacific. The Mariana Trench in the western North Pacific is the deepest point in the world, reaching a depth of 10,911 metres (35,797 ft).

Graphic - The Pacific Ocean.
East China Sea

The East China Sea is a marginal sea east of China. It is a part of the Pacific Ocean and covers an area of roughly 1,249,000 square kilometres (482,000 sq mi).

The East China Sea is bounded on the east by Kyūshū and the Ryukyu Islands of Japan, on the south by the South China Sea, and on the west by the Asian continent. It connects with the Sea of Japan through the Korea Strait; it opens in the north to the Yellow Sea.

Graphic - The East China Sea, showing surrounding regions, islands, cities, and seas.
East China Sea Borders

States with borders on the sea (clockwise from north) include: South Korea, Japan, Republic of China (Taiwan) and the People's Republic of China.

The International Hydrographic Organization defines the limits of the "Eastern China Sea (Tung Hai)" as follows:
On the South.
The Northern limit of the South China Sea [From Fuki Kaku the North point of Formosa to Kiushan Tao (Turnabout Island) on to the South point of Haitan Tao (25°25' N) and thence Westward on the parallel of 25°24' North to the coast of Fukien], thence from Santyo the Northeastern point of Formosa to the West point of Yonakuni Island and thence to Haderuma Sima (24°03′ N, 123°47′ E).

On the East.
From Haderuma Sima a line including the Miyako Retto to the East point of Miyako Sima and thence to Okinan Kaku, the Southern extremity of Okinawa Sima through this island to Ada-Ko Sima (Sidmouth Island) on to the East point of Kikai Sima (28°20' N) through Tanegashima (30°30' N) to the North point thereof and on to Hi-Saki (31°17' N) in Kyusyu.

On the North.
From Nomo Saki (32°35' N) in Kyusyu to the South point of Hukae Sima (Goto Retto) and on through this island to Ose Saki (Cape Goto) and to Hunan Kan, the South point of Saisyu To (Quelpart), through this island to its Western extreme and thence along the parallel of 33°17' North to the mainland.

On the West.
The mainland of China.
Kuroshio Current

Tanegashima is greatly affected by the Kuroshio Current. The Kuroshio (黒潮 [ku͍ɽoɕio] "Black Tide") is a north-flowing ocean current on the west side of the North Pacific Ocean. It is similar to the Gulf Stream in the North Atlantic and is part of the North Pacific ocean gyre. Like the Gulf stream, it is a strong western boundary current.

Graphic - The Kuroshio Current is the west side of the clockwise North Pacific ocean gyre.
It begins off the east coast of Taiwan and flows northeastward past Japan, where it merges with the easterly drift of the North Pacific Current. It is analogous to the Gulf Stream in the Atlantic Ocean, transporting warm, tropical water northward toward the polar region. It is sometimes known as the Black Stream — the English translation of kuroshio and an allusion to the deep blue of its water — and also as the "Japan Current" (日本海流 Nihon Kairyū).

Graphic - The ocean currents surrounding the Japanese archipelago: 1. Kuroshio 2. Kuroshio extension 3. Kuroshio countercurrent 4. Tsushima Current 5. Tsugaru Current 6. Sōya Current 7. Oyashio 8. Liman Current.

The path of Kuroshio south of Japan is reported every day. Its counterparts are the North Pacific Current to the north, the California Current to the east, and the North Equatorial Current to the south. The warm waters of the Kuroshio Current sustain the coral reefs of Japan, the northernmost coral reefs in the world. The branch into the Sea of Japan is called Tsushima Current (対馬海流 Tsushima Kairyū).
Additional Information
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