There are heavy rains and high temperatures in many places in the south. Why has the south been so severely affected this year?
According to statistics from the National Disaster Reduction Center of the Ministry of Civil Affairs, since June 2, continuous heavy rainfall in the southern region has caused floods, wind hail and geological disasters, causing 200 deaths in 8 provinces (autonomous regions) including Jiangxi, Hunan and Guangxi. 1.763 million people in counties (cities and districts) were affected by the disaster, 9 people died, 5 people were missing, 120,000 people were urgently relocated, and 69,000 people needed emergency living assistance; more than 900 houses collapsed and 13,000 houses were damaged to varying degrees; crops were affected The area is 113.5 thousand hectares; the direct economic loss is 2.88 billion yuan.
The Central Meteorological Observatory predicts that in the next three days, southern China, Jiangnan, Guizhou and other places will continue to maintain "heavy rainfall mode". Sun Jun, chief forecaster of the Central Meteorological Observatory, said that heavy rainfall in the south lasted for a long time this year. Compared with the same period in normal years, rainfall in Guangxi, Guangdong, Hunan, Jiangxi, Zhejiang, and Fujian was 1 to 2 times more, and northern Guangxi was 3 to 3 times more. 4 times.
In addition, the plum rain in the Jiangnan region officially started on June 1, seven days earlier than usual. After the onset of Mei, the intensity of precipitation in the Jiangnan area will increase, strong convective weather will become active, and heavy precipitation may cause secondary disasters.
At a time when the southern region is flooded with water, the northern region has experienced a severe crisis.
On June 3, the Central Meteorological Observatory issued the first high temperature warning this year. The maximum temperature in many places in North China reached 38-40℃, and the local maximum temperature in Handan and Xingtai, Hebei reached 41.8℃, among which 19 observations The high temperature at the station reached or exceeded the extreme value in early June. Jinan and Beijing also experienced their first high temperature days this year. Due to the special geographical environment, high temperature weather also occurred in most areas of Xinjiang, with Aydin Lake in Gaochang District, Turpan City reaching a temperature of 45.8°C. Within a week, the Central Meteorological Observatory issued three consecutive high temperature warnings.
Many netizens exclaimed: It’s so hot just after June, what can we do in July and August?
Although June and July are indeed the months with the most high-temperature days in some northern areas in previous years, this year's high-temperature weather is indeed somewhat "unusual".
According to data from the China Meteorological Administration’s regular press conference in June, the high temperature weather process in China this year occurred early, with a wide range and high intensity. From May 1 to May 9, the earliest high temperature process since 1961 occurred in the central and eastern regions, which was 49 days earlier than the normal value (June 19). In addition, the temperature was also higher than normal. The national average temperature in May was 1°C higher than the same period in normal years, the fourth highest in the same period in history since 1961. The next day's highest temperature at 578 stations exceeded the historical extreme value for the month.
The National Climate Center, in consultation with relevant units, predicts that the temperature will be relatively high in most parts of the country from June to August, and that there may be phased warming in the western Huanghuai, Jianghuai, Jianghan, eastern Jiangnan, and northeastern southwest China. High temperature heat wave. Uneven droughts and floods? Why?
Wang Yongguang, chief executive of the National Climate Center, said that in previous years, June was also a period of concentrated precipitation in the south, but this time the rainfall intensity was relatively strong. For example, local rainfall intensity broke the record, which is relatively rare.
Zhou Bing, Chief of the Climate Service Office of the National Climate Center, said that the high temperature in the northern region in May and June is a weather process controlled by the continental high pressure ridge. Under the control of the continental high pressure, downdrafts prevail and solar radiation is very high. Easy to reach the ground, so this month is prone to BBQ days. The advance and intensity of high-temperature weather also reflect the increasing number of extreme weather caused by global warming.
Zhou Bing also said that if the global climate continues to warm in the future, such extreme weather events will continue to increase.
The China Meteorological Administration held a press conference and stated that China's climate conditions are generally deviating this summer, with more extreme weather and climate events. The overall precipitation is more in the north and south and less in the middle. Floods are more severe than droughts, and precipitation is more severe in the middle and lower reaches of the Yangtze River. There may be severe flood conditions in the lower reaches, the middle and upper reaches of the Yellow River, the Haihe River Basin and the Songhua River Basin.
The whole world has nowhere to escape?
Extreme weather is increasing not only in China but also around the world. In May, the temperatures at meteorological observation stations in 109 countries have reached or exceeded the extreme value in early May. The locust plague that has ravaged many countries this year is also related to the increase in abnormal weather.
The World Meteorological Organization (WMO) issued a warning at the end of May that the northern hemisphere is entering summer, and this summer is expected to break the high temperature record again, which may aggravate the condition of patients with new coronavirus pneumonia, increase the infection rate, and increase the burden on the medical system. .
Research shows that by around 2100, most areas in India, Bangladesh and Pakistan will be close to the critical point of human survival limits, and weather combinations of high temperature and high humidity will also become a common phenomenon. Some scientific researchers even predicted that in the next 50 years, the earth will experience high temperatures that are almost uninhabitable. ?
Combined with the recent extreme weather that has become increasingly frequent, the above prediction does not seem to be alarmist.
The time for humans to pay for their actions is getting closer and closer. If there is no substantive action, there will be more and more extreme climates on the earth, which will eventually endanger humanity itself.