The five oceans, the general name of global waters, used to divide the surface waters of the earth into five regions, called the five oceans, namely the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Arctic Ocean and the Antarctic Ocean.
The Pacific Ocean is the largest ocean in the world. Including the sea area of 18 1344000 square kilometers, excluding the sea area of 16624 10000 square kilometers, accounting for about13 of the total area of the earth. It extends from the northern boundary of the Antarctic Ocean to the Bering Strait, with latitude 135 and north-south width 15500 km. Among the Pacific water systems, the most important are the rivers in China and Southeast Asia.
The Atlantic Ocean is the second largest ocean in the world, with an original area of 822 1.7 million square kilometers. After the establishment of the Antarctic Ocean, the area was adjusted to 76.762 million square kilometers, with an average depth of 3,627 meters. The deepest Puerto Rico trench is 8605 meters deep. It is divided into the North Atlantic and the South Atlantic from the north and south of the equator. It connects the Arctic Ocean and the Antarctic Ocean at 66 degrees south latitude. The Chinese name "Atlantic" originated from an atlas of the world translated by Italian missionary Matteo Ricci in Zhaoqing, Guangdong Province in the 11th year of Wanli (1583). Although there are many mistakes in this map today, the Chinese translation of "Atlantic" has been used to this day.
The Indian Ocean was called "Eritrea Sea" in ancient times, which was first seen in the book History from 484 BC to 425 BC written by Herodotus, an ancient Greek geographer, and his world map. "Eritrea" ERYTHREA originally means red in Greek, and its full name is Red Sea.
The Arctic Ocean is the smallest, shallowest and coldest ocean in the world. The Arctic Ocean is roughly centered on the Arctic Circle, located in the northernmost part of the earth, and is surrounded by the European continent and the North American continent. It is connected with the Pacific Ocean through the narrow Bering Strait, and with the Atlantic Ocean through the Greenland Sea and many straits. It is the smallest ocean in the world, with an area of only 6.5438+0.5 million square kilometers, less than one tenth of the Pacific Ocean. Its depth is1097m, and its deepest point is 5499m. Ancient Greece once called it "the ocean facing Ursa major". 1650, the Dutch explorer W. Barents divided it into an independent ocean, called the Great Beiyang. 1845, named by the Geographical Society of London, UK, translated into Arctic Ocean in Chinese. Mbth Arctic comes from Greek, which means the ocean facing Ursa major.