From September 16 to 20, Typhoon No. 13 "Bebigat" (strong typhoon level) and Typhoon No. 14 "Plasang" (tropical storm level) this year made landfall in Shanghai successively. At 7:30 on September 16, when "Bebigia" landed in Lingang New Town, Pudong, the maximum wind force near the center was level 14 (42 meters/second), and the minimum air pressure in the center was 955 hPa, making it the largest storm to land in Shanghai since the founding of the People's Republic of China. A strong typhoon, also the first strong typhoon in Shanghai. At 21:45 on the 19th, when "Plasang" landed in Fengxian District, the maximum wind force near the center was level 9 (23 meters/second), and the minimum air pressure in the center was 995 hPa.
In order to conduct joint observations of Typhoon "Bebiga" and Typhoon "Plasang", achieve accurate dynamic capture of typhoons, and provide refined meteorological service support for flood prevention and typhoon prevention work, Qingdao Laser Testing Technology Co., Ltd. The company responded quickly and quickly deployed relevant personnel to the site for equipment installation and debugging to ensure the normal operation of various instruments and the timely upload of observation data.
During the passage of Typhoon "Bebigia", the lowest pressure value at the Oriental Pearl Point was 980.5 hPa, and the maximum horizontal wind speed at a height of 355 meters above the point reached 53.24 m/s through lidar observation; monitoring at the Tongji University point The data shows that the maximum horizontal wind speed at an altitude of 398 meters above this point is 35.34 m/s, and the wind shear is relatively severe.
During the passage of Typhoon Prasang, the lowest air pressure at the Tongji University point was 999.2 hPa, and the maximum horizontal wind speed at a height of 341 meters above the point was observed by lidar to be 27.63 m/s.
During the impact of the twin typhoons, the Radium Test Innovation Team responded quickly. The deployed lidar was in good operating condition and obtained real-time meteorological data information during the typhoon landing, demonstrating the stability and reliability of the equipment under extreme weather conditions. , and provided valuable data to relevant departments to provide strong support for disaster prevention and reduction work. In the future, Laser Testing will continue to strengthen close cooperation with business departments and scientific research units to assist in the refined detection of typhoon structures and provide equipment and data support to improve the accuracy of typhoon path and intensity forecasts.
