Empty observation: Capture the "scouts" of the changing changes ｜ Welcome to the 20th major • Meteorological Achievements ④

At around 15:30 on July 4th, a medium -sized tornado occurred in Sanshui District, Foshan City, Guangdong Province. The super single storm caused by the typhoon "Siaba" was more obvious in the radar wave.

In the high postal city of Jiangsu Province in the tornado area, the C -band phase control array weather radar and Jiangsu's new generation weather radar network was successfully captured by multiple tornado in the Chengnan New District of Gaoyou City on June 12, 2020.

Since the 18th National Congress of the Communist Party of China, my country ’s radar and empty air -based observation capabilities have continuously improved. Clear observation data and products have been widely used in weather forecast early warning and major activities, and weather service guarantees for the event.

Fujian Minhou Xuefeng Radar Picture/Wang Xiaojia

Outstanding Layout -Promoting the Integrated Observation of the Empty and Sky

As of now, 236 in my country have built 236 units of the new generation of weather radar consisting of the S -band and C band of the world's largest and most influential weather radar network. The 8 -minute shortened to 50 seconds, the business usability reached 99%.

The China Meteorological Administration has established a radar meteorological center to introduce a series of radar development plans to ensure the performance of weather radar efficiency from the institutional mechanism. Innovate the development of weather radar, foundation remote sensing vertical observation, meteorological satellite and other equipment intelligent Ioes and synchronous observation techniques to promote the empty ground emptiness The development of synergistic observation technology of the sky, continuously fills the blind spots such as a new generation of weather radar and foundation remote sensing vertical observation system (hereinafter referred to as "vertical observation network").

今年汛期，我国首部S波段相控阵双偏振天气雷达——福州闽侯雷达进入关键技术调试期；新一代天气雷达业务软件（ROSE2.0）正式业务运行，核心技术自主可控，在华东、 South China has expanded his body in the process of repeatedly strong convections; the radar puzzle system V3.0 puts into trial operation, and the update frequency is shortened from 10 minutes to 6 minutes.

The China Meteorological Administration organized the technical difficulties of Beidou navigation to explore the technology, and developed the third -generation empty system in my country. The system uses Beidou navigation positioning technology to detect the accuracy of the international advanced level. At one time, the "rise -flat drift -drop" three -stage exploration data is obtained at one time, which realizes the technical change from fixed -time fixed -point receiving observation data to real -time intelligent network receiving. Essence At present, observation tests have been conducted in Guangdong and other places, laying a solid foundation for subsequent short -term business reforms.

In accordance with the "Application, Pre -Research Generation" solution and the self -controlling requirements for the core technology of radar radar in the next generation, the radar meteorological center has gradually established a new model of meteorological radar equipment research and development. Radar hardware research and development gradually embarked on the standardization development track, which has vigorously promoted the phase control array The research and development and application of large -scale high -precision observation technology equipment such as meteorological radar.

See benefits -widely used in long -time, space, and multi -scenes

In early August, the Radar Meteorological Center released monitoring materials such as agricultural relocation pests and landing points in Yunnan, Hunan, and Anhui according to the meteorological radar ecological monitoring data. Provide a basis for relevant departments, regions and farmers' precise prevention and control.

The development of biological monitoring and services in the air is one of the multi -scenario applications based on weather radar. In recent years, with radar, empty, vertical observation data and product applications as the core, the China Meteorological Administration Meteorological Exploration Center has developed quantitative precipitation estimation algorithms, echo intelligent external algorithms, particle phase recognition algorithms, etc. Identification and strong convection weather push early warning products; improved radar data transmission methods, shortening the timeliness from 442 seconds to 50 seconds.

Based on the strong pairing tracking identification and other products, at 16:00 on June 12, according to the weather radar back line -like -line system, the rapid development of a rapid development of a strong echo super monomer, subsequently formed a clear qi vapor and strong compromise core signal, the radar meteorological center The important information of the "large diameter hail disaster has been formed" quickly, and interacts with the forecasters in front of it to provide an important basis for the Beijing Meteorological Observatory's prediction.

Weather radar -based data three -dimensional puzzle system (V3.0) set data quality control, product generation, data analysis, release service is equal to one. There are three individual drawing products: the fake equivalent temperature, the three -dimensional wind speed field, and the typhoon warmth structure. You can not only see the appearance structure diagram of the typhoon "fireworks" in 2021, but also the vortex information inside the typhoon.

In the large city meteorological observation test, 13 of the temperature, humidity, wind speed, air -soluble, water -soluble, water -soluble, water -soluble, water -soluble, water -soluble gum, water -soluble gum, water -soluble gum, water dissolved gum Five lines such as condensation, etc., have played an important role in the Beijing Winter Olympics and celebrating the 70th anniversary of the founding of the New China.

According to statistics from the second quarter of the second quarter of the China Meteorological Administration Earth System Numerous Forecast Center, the application of weather radar data in the China Meteorological Administration (CMA-MESO) in China Meteorological Administration accounted for less than 2%in 2012 in 2012By 55%; the statistical results in May 2021 showed that the exploration data contributed about 16.3%to global forecasting; in 2016, cloud analysis assimilation radar reflectances can increase by more than 10 mm within 24 hours.By 18%; in 2020, after CMA-MESO assimilated the weather radar radial data, it further improved the forecasting ability of near the ground elements.Produced by China Meteorological Administration Xuanke Center (China Meteorological News Agency)

Author: Jian Jufang (Jiang Lipeng and Jiang Yuan have contributed to this article)

Edit: Da Miao Wu Tong Wang Wan

Review: Duan Haoshu

- END -