Artificial rainfall is not "increasing if you want to increase", you need these conditions

The Yangtze River Daily Da Wuhan Client August 13 (Reporter Gong Ping Correspondent Wang Yilin) ​​The sixth high -temperature red warning comes! Since this week, the city has issued high -temperature red warnings for the sixth consecutive day to remind citizens to pay attention to heatstroke and cool down.

The monitoring from the meteorological department of Wuhan City, the weather in our city was sunny during the day on the 12th. A total of 84 automatic stations appeared above 40 ° C. It was mainly located in the central urban area, Jiangxia, Xinzhou, West Lake, Caidian, and surrounding areas. The lowest temperature on the day. It is 28.7 ° C, and the maximum temperature is 38.4 ° C.

On the morning of the 13th, the minimum temperature in our city exceeded 30 ° C to 30.2 ° C. As of 16 o'clock, the maximum temperature in the afternoon rose to 38.5 ° C. The whole weather temperature was relatively high.

It is expected that in the next week, it will be controlled by the auxiliary high, and the high temperature weather in the city will continue, and the highest temperature in some areas can reach more than 40 ° C.

Artificial rainfall is not "increasing if you want to increase"

The majority of citizens and netizens are eager for a rain. Recently, the province will carry out the news of artificial rainfall to relieve drought, and the current work preparations are ready.

News from the provincial meteorological department, the province will carry out three months of artificial rainfall operations from August 15.

At present, artificially affects the weather business duty staff closely monitor and analyze the conditions of manual rainfall operations, and timely produce and release operation guidance products. According to the weather conditions, it is planned to implement analogy coordinated manual rainfall operation in central and northern Hubei Province from August 15th to 16th. ; In response to the current local precipitation, the rainfall operation of the organization will be organized. In order to solve the demand for drinking water, industrial and agricultural production and ecological water in the drought area, it will provide a solid guarantee for the harvest of Baoqiu Grain.

When can it be artificially raining?

According to the official website of the China Meteorological Administration, artificial rain increases requires certain conditions.

Only when the cloud system develops to a certain thickness, this thickness is generally greater than 2 kilometers, and there must be a certain amount of over -cold water (less than 0 ° C without freezing) in the cloud. Essence In this way, the catalyst is carried to the valid parts of the cloud through the high artillery, rockets or aircraft to play a role in manually rain.

The principle of manual rainfall can be described in a generalized word "trigger mechanism", that is, on the basis of fully studying and understanding the natural precipitation process, the natural rainfall mechanism is artificially triggered.

There is rain to have rain, but not all clouds have precipitation potential. Only those clouds and water resources are rich and the clouds are thick (cold clouds must have a relatively large cold water area) and clouds with insufficient natural precipitation. In order to achieve a good rainbow effect.

At present, artificial rainfall methods are mainly for the target cloud system. Choose the right time. Through rockets or artillery, etc., the cloud layer is sowing silver, dry ice, and salt powder to make cloud layer precipitation or increase the amount of precipitation.

At the same time, airplanes, ground rockets, and high guns must be applied for operating airspace before the rainfall, and strictly launching artificial rain rockets and artillery shells in the approved airspace to ensure operation safety.

44.6 ℃!

High temperature records in the province refresh again

On August 12, the highest temperature of 73 stations in the province exceeded 37 ° C, and 19 stations exceeded 40 ° C!

At 16:26 that day, the temperature of Zhushan station reached 44.3 ° C! Refresh the highest temperature record since the meteorological record! The original record was 43.4 ° C in Zhushan on July 20, 1966.

On the 13th, the highest temperature historical record in the province was renovated, and the temperature of Zhushan hit a new high to 44.6 ° C. In addition, the temperature in other areas is also high, such as Paocang 42.9 ° C, Fangxian 42.4 ° C, and 41.9 ° C in Xixi.

It is expected that the high temperature weather in our province will continue in the next three days, high temperatures and long standby, air -conditioning and fan joint operations, and electricity loads are high. Everyone must pay attention to preventing electrical fires.

It is expected to be controlled by the subtropical high -pressure in the next three days, and the high temperature and high temperature weather in most areas in our province will continue. Among them, there will be shower or thunderstorms in western parties in western Hubei and northeast Hubei. High temperatures are still above 37 ° C. , Local up to 43 ° C, this weekend may be the hottest weekend this summer.

There is a good news that on the 16th, the western and north of our province will welcome small thunderstorms. The local is accompanied by strong streaming weather such as short -term heavy precipitation and thunderstorms. The highest temperature has decreased slightly. However, the cooling of cooling is a short day, and the high temperature heat waves will continue on the 17th.

The national high temperature may be the strongest in history

News from the official Weibo of "China Weather", Chen Lijuan, chief forecast at the National Climate Center, said that high temperature weather in the southern southern in the next two weeks will continue. It is expected that the rare high temperature weather that has appeared in my country since June this year may reach the strongest high temperature incident since 1961. At present, the regional high temperature process has not exceeded 2013.

Chen Lijuan said that in the future, high -temperature heat waves may appear more frequently. In the context of climate change, the high -temperature heat wave event may become a new normal.

In the future, if it is a global warming background, the effect of greenhouse gas is very strong, then the possibility of this high temperature will appear more. In the sixth evaluation report of IPCC (a special committee of the United Nations Government Climate Change), many changes in many extreme weather and climate events have been observed since the middle of the 20th century. Among them, the frequency of high -temperature heat waves is a very significant feature.

Wuhan weather forecast for the next three days:

Daytime on August 14: Sunny day, 30 ℃ ～ 39 ℃, southwind 3 to 4, gusts 5th level; day of August 14th to August 15th during the day: sunny day, 31 ℃ ～ 40 ℃, southern wind 3To level 4, gust -level level 5;

From the evening of August 15th to August 16th: sunny to cloudy, 31 ° C to 39 ° C, southwind level 3.

[Edit: Deng La Xiu]

- END -