Current location - Music Encyclopedia - Chinese History - What disasters will El Nino cause?
What disasters will El Nino cause?
After 1960s, scientists consulted the meteorological archives since World War II and found that several major "El Nino" phenomena occurred in several years, all of which caused different degrees of global climate anomalies. In 194 1, 1957, 1965, 1972, 1976, severe weather such as droughts and floods, heat waves, low temperatures and snowstorms continued all over the world. The strong El Nino phenomenon from 1982 to 1983 led to repeated heat waves in North America, killing millions of livestock and poultry. Hawaii was hit by a hurricane rarely seen in history; Rare droughts have occurred in Australia and South Asia. In China, however, there has been a serious "drought in the south and waterlogging in the north", and there has been a chilling injury in the northeast, which has reduced grain production. 1987 is also the year of "El Nino", with various disastrous weather. Almost every 24 hours, there are 2-4 abnormal weather events on the earth, and the affected areas are all over five continents. Scientists believe that "El Nino" will cause global climate anomalies because the total heat source of the global atmospheric circulation is the equatorial belt, because the solar radiation received here is 1.4 times higher than that of the polar regions every year, thus causing the global atmospheric circulation movement with the equator as the "power", in which different regions will form heat, cold, temperature, wind, rain and snow in summer. The appearance of "El Nino" will affect this stability to varying degrees. When this warm air flow is strong, it can flow tens of thousands of kilometers along the south latitude 15, which accelerates the rhythm of the whole global atmospheric circulation and makes the relatively stable climate in the world abnormal.