China Meteorological Bureau launched a four-level emergency response to drought. Why is the drought so severe this year?

The leaders of China Meteorological Bureau issued an order, and China Meteorological Bureau Office, Emergency Disaster Reduction and Public Service Department, Forecasting and Network Department, Comprehensive Observation Department, National Meteorological Center, National Meteorological Administration, National Climate Center, National Satellite Meteorological Center, National Meteorological Information Center, Earth System Numerical Forecast Center, Meteorological Observation Center, Public Meteorological Service Center, Weather Modification Center, Meteorological Propaganda Science Center and Huafeng Group immediately entered the fourth-level drought. The meteorological bureaus of Jiangsu, Anhui, Henan, Hubei, Zhejiang, Fujian, Jiangxi, Hunan, Guizhou, Chongqing, Sichuan and other provinces started or adjusted the corresponding emergency response according to the actual judgment.

Increase the number of personnel on duty, strengthen duty, and mobilize and deploy flood control and drought relief work; Dispatching water conservancy and flood control projects according to their functions and powers; Transfer personnel in dangerous areas as planned, organize and strengthen dike inspection and defense, control dangerous situations in time, or organize and strengthen drought relief work. Responsible persons of flood control and drought relief headquarters at all levels in disaster areas and responsible persons of member units shall organize and guide flood control and drought relief work in their respective jurisdictions according to their duties, or be stationed in disaster areas. Specially help the hardest hit areas to do flood control and drought relief work. The flood control and drought relief headquarters of all provinces, autonomous regions and municipalities directly under the Central Government shall report their work to the local people's government and the State Defense General. The member units of the flood control and drought relief headquarters of relevant provinces, autonomous regions and municipalities directly under the Central Government fully cooperate with the flood control and drought relief work. High temperature weather has appeared in many parts of the world.

The once-in-a-century heat wave swept through Europe, and the temperature in many places exceeded 40? C. The highest temperature in Paris, France reaches 40.5℃; Temperatures in parts of Portugal and Spain once reached 47 C; The temperature in many places in the UK has exceeded historical extremes. The highest temperature in Cunningsbury, Lincolnshire, UK reached 40.3℃, the highest since records began in the UK. Britain has declared a state of emergency and issued the first ever extreme high temperature red alert. According to the data of the World Health Organization, in Portugal and Spain alone, the heat wave in Europe caused more than 65,438+0,700 deaths. The subtropical high in the northern hemisphere is extremely strong, almost running around the earth, and there are obvious faults only near India. Northern South America and southern Central Africa are also controlled by the subtropical high in the southern hemisphere. In Europe, the subtropical high and continental high are superimposed in the same phase, which is affected by clear sky radiation, settlement warming and warm advection, resulting in a wide range of continuous high temperature weather.