The average sea surface temperature in the tropical western Pacific and eastern Indian Ocean has been above 28℃ for many years, and the central temperature has exceeded 29℃. It is the hottest area in the world's oceans, also known as the Ocean Warm Pool. Its total area accounts for approximately 26.2% of the tropical ocean area and 11.7% of the global ocean area. It spans 150 longitude from east to west and stretches about 35 latitudes from north to south. The Western Pacific Warm Pool is 3 - 9 ° C higher than the Eastern Pacific, and the warm water is as deep as 60 - 100 meters. It is the place on earth where the interaction between seawater and the atmosphere is strongest. Atmospheric convection is extremely strong, so this is the world's most tropical storms and typhoons. Area.
Why did the ocean warm pool appear? Take the Pacific Ocean as an example: Equatorial easterly winds prevail in the equatorial Pacific, blowing warm water on the surface of the eastern Pacific to the western Pacific and accumulating there, thus forming a warm pool in the western Pacific. After the warm water on the surface of the East Pacific flows away, the cold water below will rise to replenish the surface water that flows away, which will cause the surface water of the East Pacific to cool down.
The Ocean Warm Pool affects climate changes in Asia, the Pacific and even the world, and some major natural disasters are inextricably related to it. For example, when the winter temperature of the Western Pacific Warm Pool increases, precipitation in most areas of the Jianghuai River and Huaihe River in China increases from June to July, and floods also increase.