Artificial rain increase operation, depending on Yun's "face"

Jimu Journalist Huang Zhigang

Photography reporter Huang Zhigang

Video editing Huang Zhigang

At 6:41 on August 20th, the Jingzhou Meteorological Observatory issued a signal of high -temperature red warning (class Ⅰ, particularly serious) that it is expected that during the day, the highest temperature in most parts of Jingzhou will rise to 39 to 41 ° C, and the local is above 42 ° C.

In the past few days, "high temperature" has become a hot word in the main melody of the weather. Since the summer, the number of high temperature days in Jingzhou is 32 days, which is the first since the complete meteorological observation record in 1961. The continuous high temperature weather has caused the agricultural production and the people's lives to be challenged to varying degrees. Right now, whether the water sources are sufficient in the pouring of rice in the Jianghan Plain.

Water pumping irrigation, cross -zone water adjustment, and built dams ... In order to deal with high temperature, drought, and rainless weather, extremely eye reporters have recently visited in Jingzhou, Hubei. A "conference battle" of drought resistance and disaster reduction is being staged.

In recent days, the staff of the Jingzhou Meteorological Bureau artificially influencing the weather service center have taken high temperature and heat, and dispatched a number of mobile shadow rocket operating vehicles to grab the favorable meteorological conditions with the gesture of the pillow. Operations to alleviate the adverse effects of sustained drought.

Unveiled: Simple rocket launch, with complex and standardized procedures

On August 18, Jingzhou, the ancient city, was still shrouded in high temperature and heat. The heat waves in the air made people like steaming sauna. In order to seize the favorable weather conditions and implement artificial rainfall operations, the Jingzhou Meteorological Bureau selected multiple operating points in Jingzhou District and prepared for rain increase operations.

At about 4 pm on the same day, the reporter of the Jimu reporter saw an artificial impact on the weather in Swan Village, Libu Town, Jingzhou District. The staff who implemented artificially raining were working hard and were nervous and busy. Their task of their day was to designate a safe area as the launching point of the rocket launcher, and set up rocket launcher launch equipment, debug equipment, check the control system, and prepare rocket artillery and ammunition ...

Artificial rain -raising operations generally choose empty venues far away from residential gathering areas. At the homework site of Swan Village, there was an open and secluded farmland. Because there were no sunscreen cover, the operators could only take high temperature and heatstone operation equipment. They were able to work hard. They were already sweating.

Jimu Journalists saw at the scene that the two operators took the warning line at the scene and set up warning signs to remind unrelated personnel not to approach. The three operators set up rocket launcher car launchers according to geographical coordinates, and checked the performance of the operating vehicle, installed rocket launchers, tested the launch controller, calibrated the rocket launchers and other processes.

At this moment, a professional explosion -proof car carrying the rain -resistant hail rocket was drove from an ammunition warehouse to the scene. Two cannons removed a box of BL-1A rainfall rain and hail rockets from the explosion-proof car.

On August 18th, a manual affecting the weather operating point in Libu Town, Jingzhou District, Jingzhou City, Hubei Province, two gunners are loading the BL-1A rainfall and hail rocket

A cannon in the work told Jimu Journalist that the rocket was 56 mm in diameter, 789 mm long, and weighing 2.25 kg. According to the requirements of artificial rainfall operations, when the rocket has an angle of 85 degrees, its effective range will exceed 7 kilometers. A rocket bullet carries 180 grams of catalysts, of which the content of silver iodide is 10.8 grams.

On August 18th, in a manual affecting weather operating point in Libu Town, Jingzhou District, Jingzhou City, Jingzhou City, Hubei Province, a gunner was adjusting the ranging corner of the rocket launcher.

"In artificial rainfall, silver iodide mainly acts as the core of water vapor. It can be used as an ice nucleus formed agent, and it can also be used to prevent hail." The gunner introduced.

According to the operating requirements, the launch of rocket launchers to implement manual rainfall has a complex and strict process. Before the operation, the meteorological department shall apply to the government where the operating area is located, and issue an operation announcement to inform the public that the scope and operation time of the operation.

After the early announcement is completed, the meteorological department shall formulate a comprehensive operating plan, safely deploy rocket bullet ammunition, and then submit an airspace application to the local airspace management department to obtain the approval and approval to implement the rocket launch. Interpretation: The implementation of manual rainfall must meet three conditions

On August 18, the Jingzhou Meteorological Bureau released a major meteorological information special report that since the summer of this year, the average temperature of Jingzhou has reached 29.7 ° C, the first place since 1961. As of now, the number of high temperatures has reached 32 days, the first place since 1961.

Especially after the plums on July 7, there are two high -temperature weather with long duration, extensive influence, and strong extremes. History is rare.

Jimu reporters noticed that the Meteorological Department of Jingzhou City has released a high -temperature red warning signal for many days. At present, agricultural production has entered a critical period, especially the growth of rice into the grouting period, and water sources are urgently needed.

During the visit, Jimu Journalists learned that in recent days, all departments from Jingzhou are grabbing all conditions, implementing drought -resistant and water -regulating, and alleviating the impact of the disaster.

According to the forecast of the meteorological department, before the end of August, Hubei Province's sunny and hot high temperature weather will continue, and the precipitation is extremely small. Compared with the same period of the same year, the average temperature in the province is 0.5 to 1.5 ° C. Essence

On August 17, an artificial rainfall aircraft flew to Songzi City, Jingzhou. Under the joint influence of the weather system and artificial rainfall operations, there was a mandalan precipitation in the western region. The long -lost showers dispeld the hot summer anger and relieved a certain degree of drought.

In fact, whether it is an airplane operation or a rocket, the principle of its role is probably equivalent. "They all throw catalysts in the Yiyun Cloud Group, create rainfall conditions, and urge precipitation." Niu Ben, deputy director of Jingzhou Meteorological Bureau, said, "As long as the conditions are available, apply for rocket launches at any time!"

"The implementation of artificial rainfall must meet three conditions at the same time." Niu Ben, who has long been engaged in meteorological forecasting, gave a professional answer. He said that in addition to requiring the thickness of the cloud layer to reach more than 2 kilometers, the cloud is full of a large amount of temperature less than 0 ° C but not not 0 ° C. In addition to the icing water vapor, it must also have a wealth of uplifting airflow. "At the same time, if you have these three conditions, you can fire rocket launchers and transport catalysts to the cloud group to achieve the purpose of enhancing precipitation and precipitation efficiency."

"Bake" test: Look at the "face" of the cloud, find opportunities to fire

In the afternoon of the same day, Jimu Journalists visited several homework scenes in Jingzhou District. They looked up and looked up, where they were as well as, and they had no trace of the cloud group, but the gunners who performed artificial rain increase operations were still busy.

On August 18th, in a manual affecting weather operating point in Libu Town, Jingzhou District, Jingzhou City, Jingzhou City, Hubei Province, two gunners are connecting the lead of the BL-1A rainfall and hail rocket

Since there are three conditions at the same time, it will be implemented by manual rainfall. With doubt, Niu Ben gave a professional and easy -to -understand answer.

He said that at present, under the control of the subtropical high -pressure, the atmospheric movement is mainly under the air flow, and there is no cloud layer. However, the high temperature brought by solar radiation will increase the air flow. Condition of Yiyun.

"Idiom‘ No Thai Lalai ’is similar to the truth.” Niu Ben said that atmospheric movement is a complex sport. Although the formation of the above -mentioned rising airflow is also a probability problem, the operator does not give up everything that may create rain.

"In the next week, high -temperature weather in Jingzhou will be developed again. It is expected that the comprehensive intensity of high temperature will become the strongest since 1961." Niu Ben told Jimu Journalists that the current high temperature and drought weather will bring "baking" to the production and life of the masses. In addition to the meteorological department, in addition to doing a good job of meteorological forecasting, and giving the disaster prevention and reduction suggestion, we must do their best to implement artificial rain increase operations.

"Beginning on the 24th, a cold air in the north will go south, or it will create favorable conditions for rain." Niu Ben said that the implementation of artificial rainfall depends on the "face" of the cloud. At the same time, the staff who implemented artificial rainfall operations are even more "prepared" in the "preparation" attitude of pillows, and do not miss any opportunities to implement rainfall operations.

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