Is the weather particularly hot in 2020? Heat waves come and go. Is the climate abnormal again? The average temperature has risen again?

El Nino warm current is an abnormal natural phenomenon in the Pacific Ocean. On the west coast of South America and the eastern South Pacific, a famous Peruvian cold current flows from south to north. From June 165438+ 10 to March of the following year, it is summer in the southern hemisphere. The water temperature in the southern hemisphere generally rises and the equatorial warm current flows westward. At this time, the global pressure belt and wind belt move south, and the northeast trade wind crosses the equator and deflects to the left into the northwest monsoon under the action of the southern hemisphere self-deflection force (also known as geostrophic deflection force). The northwest monsoon not only weakens the southeast trade wind, which is near the west coast of Peru, but also weakens or even disappears the cold water flooding of Peru's cold current. It also blows the equatorial warm current with higher water temperature to the south, which makes the water temperature of Peru's cold current abnormally rise. This quiet and unstable ocean current is called "El Nino Warm Current".

On May 8, 2020, the monitoring of the National Climate Center showed that a weak El Niñ o event had been formed, and it is expected that the flood will be heavier than the drought this summer.