China News Service, Beijing, August 3 (Reporter Yuan Xiuyue) Since the fall, high temperature and heavy rain in many places have attracted much attention.

The reporter learned from the China Meteorological Administration's August press conference that the national average temperature in July was 23.2°C, 1°C higher than the same period of the previous year and the second highest in the same period in history since 1961.

At the same time, there are many torrential rain processes and strong extremes in the northern region.

　　Why is there so much precipitation in the north?

Will the heat continue in the next dog days?

The press conference scene.

Photo by Yuan Xiuyue

"Seven down and eight up", the spatial and temporal distribution of precipitation in the northern region is uneven

　　"The most significant features of the climate in July are less precipitation and high temperature." Xiao Chan, deputy director of the National Climate Center, introduced at the press conference. According to the statistics of the National Climate Center, the national average precipitation in July was 96.6 mm, which was 20.6 mm lower than the same period of the previous year. %, the second lowest in the same period in history since 1961, and the lowest in Tibet, Sichuan and Yunnan in the same period in history.

　　At the same time, heavy rainfall in many places in the north aroused widespread concern.

In July, there were 6 regional heavy rain events in my country, 4 of which occurred in the north, 1.4 more than the same period of the previous year, while the southern regional rainstorm process was 2.1 less than the same period of the normal year.

The daily precipitation of 30 national weather stations in the northern region exceeded the extreme value in July.

On July 11, in Taiyuan City, Shanxi Province, citizens passed through a waterlogged road section.

Photo by China News Agency reporter Wu Junjie

　　What is the reason for the heavy rainfall in many places in the north?

Fang Xiang, deputy director of the National Meteorological Center, explained that from late July to late August, the high pressure in the western Pacific moved northward, the warm air mass moved northward, and the intensity of the South China Sea monsoon was also stronger. When regions meet, rainbands are likely to form.

"Seven down and eight up" is the most concentrated period of precipitation in the northern region of the year.

　　Fang Xiang pointed out that since July 16 this year (July 16 to 31), the spatial and temporal distribution of precipitation in the northern region has been very uneven, with an average precipitation of 67.1 mm, slightly more than the same period of the year.

　　"Compared with the same period of the previous year, the precipitation in eastern Inner Mongolia, southern Northeast China, southern North China, northern central China, central and northern eastern China, eastern and northwestern Northwest China, and southeastern and western Xinjiang was 20 to 2 times higher than the same period of normal years. Central Shaanxi and western Henan have more than twice as much; most of the rest of the north has less or close to normal precipitation."

On July 13, citizens braved the sweltering heat to walk on the streets.

The temperature at Xujiahui Station in Shanghai reached 40.9°C that day, tying the highest temperature record since meteorological records (since 1873).

Photo by Yin Liqin

The dog days are longer this year, and the temperature is lower in the north and higher in the south

　　In terms of temperature, the high temperature weather this year is relatively obvious, and the dog days are relatively long.

From July 16th, the dog days are up to 40 days, and it is currently in the middle period (July 26th - August 14th).

Since the fall this year (July 16-31), the national average temperature is 22.9°C, 0.5°C higher than the same period of the previous year, and the fifth highest in the same period in history since 1961.

　　"Compared with the same period of the year, the temperature distribution is lower in the north and higher in the south. The temperature in Guangdong is the highest in the same period in history, followed by Fujian, Yunnan, Xinjiang and Guangxi, and Jiangxi and Hainan are the third highest." Fang Xiang introduced.

　　Xiao Chan said that since June 13, my country has experienced the first regional high temperature weather process this year. Up to now, the national average high temperature days are 8.7 days, which is 3.6 days more than the same period of the normal year, which is the most in the same period in history since 1961, and the high temperature lasts for a long time. , wide range and extreme.

Up to now, this year's high temperature comprehensive intensity is the third strongest since 1961, second only to 2013 and 2017.

　　In addition, he mentioned that due to the high temperature, electricity consumption in many southern places such as Zhejiang and Shanghai hit a record high, and many people in Zhejiang, Jiangsu, Sichuan and other places were diagnosed with heat stroke.

　　In fact, it is not only the frequent occurrence of high temperatures in my country. Since the beginning of summer, high temperature heat waves have occurred in many places in the northern hemisphere, and many cities in France, Spain, the United Kingdom, the United States, Japan and other countries have set new high temperature records.

　　Why are heat waves sweeping the world?

Xiao Chan explained that global warming is the climate background for the frequent occurrence of high temperature and heat wave events in the northern hemisphere, and the abnormal atmospheric circulation is the direct cause.

The picture shows the evening of July 23, in Fuzhou, Fujian, children play with foam in the amusement facilities to cool off the heat.

Photo by Zhang Bin

Will the widespread heat ease?

　　In August, can the large-scale high temperature in my country be relieved?

How will the weather develop?

　　Xiao Chan said that it is expected that in August, the temperature in most parts of the country will be close to the same period of the year to high.

　　Specifically, in the next 10 days, there will be many high temperature weather in Jiangnan, Sichuan Basin, Jianghan, Jianghuai, southern Shaanxi, Henan and other places.

From the 4th to the 6th, the high temperature weather in southern China and southern Jiangnan will be temporarily relieved.

From the 4th to the 7th, high temperature weather will occur successively in Beijing-Tianjin-Hebei, Shandong, western Inner Mongolia, western Gansu and eastern Xinjiang.

　　"The daily maximum temperature in high-temperature areas can generally reach 35-38°C, and locally it can reach 40°C. Among them, the highest temperature in the Turpan Basin in Xinjiang can reach 41-44°C. From the forecast for the next 10 days, there is no large-scale high temperature in my country. There are obvious signs of relief." Fang Xiang said.

　　In terms of precipitation, it is expected that in August, there will be more precipitation in Northeast China, North China, southeastern South China, most of Inner Mongolia, northeastern Northwest, and northwestern Qinghai-Tibet Plateau.

　　In the next 10 days, the main rainfall areas will be located in Northeast China, Beijing-Tianjin-Hebei, central and northern Shanxi, central Inner Mongolia, central and northern Shandong, and southern Jiangnan, southern China, Yunnan, western Sichuan Basin, southern Guizhou, and southern Tibet. The cumulative rainfall is 40%. ~80 mm.

Among them, parts of Guangdong, Guangxi, Hainan, southern Yunnan, eastern Liaoning, eastern Jilin, eastern Hebei and other places have 100-150 mm, and local areas exceed 200 mm.

　　In addition, Fang Xiang said that the tropical disturbances in the South China Sea and the Northwest Pacific Ocean tend to be active, and one or two typhoons may be generated. In early and late August, it will bring relatively heavy wind and rain to the southern seas of China and the coastal areas of southern China.

(Finish)