What does La Nina weather mean?

La Nina weather actually means that the southeast trade winds blow the seawater heated by the sun to the western Pacific Ocean, causing the sea level in the west to rise by nearly 60 cm compared with that in the east, the sea temperature in the west to rise, the air pressure to drop, the wet air to accumulate and form typhoons and tropical storms, and the bottom seawater in the east to flow backward, making the sea water in the east Pacific Ocean cold.

From 1950 to March this year, there were 16 La Nina events around the world. According to the intensity level, it is divided into weak, medium and strong events. There were only 1 strong La Nina events in history, which lasted from May 1988 to May of the following year.

Related information:

La Nina phenomenon is an abnormal cooling of seawater in the central and eastern Pacific Ocean. The southeast wind blows the seawater heated by the sun to the western part of the Pacific Ocean, causing the sea level in the western part to rise by nearly 60 cm compared with that in the eastern part, the sea temperature in the western part to increase, the air pressure to decrease, the accumulation of wet air to form typhoons and tropical storms, and the bottom seawater in the eastern part to flow backward, resulting in the cooling of the sea water in the eastern part of the Pacific Ocean.

La Nina is the opposite of El Ni? o. With the disappearance of El Ni? o and the arrival of La Ni? a, the weather and climate disasters in many parts of the world will also change. Generally speaking, La Nina's temperament is not very mild, and the climate impact is roughly opposite to that of El Ni? o, and its intensity and impact are not as good as that of El Ni? o, but its arrival may also bring disasters to many parts of the world. ?