Technology enables! Fine weather service escort "14 winter" Zhangjiakou competition area!

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PubDate：2024-02-05 Hangzhou Shallow-Sea Technology Co., LTD.

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As one of the Beijing Winter Olympics, Zhangjiakou, Hebei Province, has attracted numerous ice and snow lovers in the "post-Winter Olympics era". In 2024, Zhangjiakou, as one of the competition areas of the 14th National Winter Games (hereinafter referred to as the "14th Winter"), undertakes the tasks of ski jumping and Nordic competition. These two events require high weather conditions.

On the evening of February 1, the National Ski Jumping Center was brightly lit. Looking from a distance, the jump platform with a height difference of more than 100 meters is like a handle "Ruyi" hanging between the mountains. Ski jumping requires extremely high wind - wind speed and direction will affect the athletes' performance and even safety, and the "snow Ruyi" located here is surrounded by bowl-shaped mountains, which can avoid crosswind to the maximum extent. In the open mixed team final of the ski jumping competition, the skiers zip down the chute, fly into the air at the jump point, and make a graceful parabola in the air until they land and glide to the stop zone.

From the smooth progress of the event to the safe takeoff of the athletes, from the traffic meteorological service in the competition area to the accurate correction of the athletes' results, the high-quality meteorological service guarantee work of the meteorological department of Hebei Province is stable, reliable and effective.

The picture shows the National Ski Jumping Center/Liu Rui

Weather blessing, burning ice and snow

Talking about the weather forecast service in Zhangjiakou, Fan Junhong, chief of the meteorological service center of Hebei Province, said: "Ski jumping requires very high wind speed, the wind speed can not exceed 4 meters/second, and the rotation Angle of the wind can not be greater than 90 degrees, otherwise the athletes may be in danger." The jumping platform of the competition is in the mountainous area, and it is difficult to forecast the wind down the complex terrain, which requires the forecasters to adjust and correct the numerical forecast according to experience. On the field, the requirements for forecasting are even more stringent to a certain point and a certain second.

Highly accurate predictions of time and space and the uncertainty of weather patterns create a pressure race for forecasters. "The weather + sports forecasting service has been provided for several years, and the pressure is great, but the ability to take responsibility and withstand pressure has also increased a lot." Hebei Province meteorological station deputy director Duan Yuhui said.

Engaged in "weather + sports" forecasting services, Duan Yuhui is deeply different from the usual business: "We have to stand in the perspective of the athletes and the event side, provide the forecast they need, the weather elements forecast into the weather on the course of the game and results, as well as the impact of the athletes' safety forecast." We have to forecast from that point of view, to interpret the forecast, to communicate with the tournament."

As Ji Xuesai, deputy director of the Zhangjiakou Meteorological Observatory, said: "In the office, -20 ° C may be just a number for forecasters. However, when I went to the ski resort and participated in the ski training for meteorological support personnel, I realized that this is not only a number, but also an important meteorological factor that has an important impact on the sense of body and personal safety of athletes.

"14th Winter" Zhangjiakou Competition area meteorological Service team is studying and judging the weather situation map/Liu Rui

Technology enables us to leap the limit

"Safety" is the prerequisite for the smooth running of the tournament, and every meteorologist who guarantees the 14th winter event keeps in mind the concept of "people first, life first". The refined forecast products formed by the transformation of Winter Olympic achievements and technological innovation provide strong support for ensuring the 14th winter. "In order to ensure the event, the forecast service group applied the sports weather forecast business platform, a special system of snow and ice developed by Hebei Meteorological Service Center, introduced the Provincial Meteorological Station Science and Technology Winter Olympics Results (ENSL), accessed the '100-meter level, minute level' forecast model, and provided 200-meter resolution wind field forecast products and venue refined forecast products for the core competition area. We also developed special templates for the competition, which provided strong support for the safe running of the competition." Zhangjiakou city meteorological station director Guo Hong said.

How detailed do meteorological observations need to be in order to achieve a refined forecast? Zhangjiakou Meteorological Bureau, with the support of Hebei Meteorological Technology and Equipment Center, set up 7 sets of three-dimensional second ultrasonic wind observation equipment on both sides of the National Ski Jumping Center to capture wind direction and speed in seconds. The ski jumping wind compensation scoring system developed on the basis of these meteorological data provides a strong support for accurate calculation of athletes' performance.

Meteorological equipment support personnel handling meteorological observation equipment/Liu Rui

Working outdoors at night at minus 20 degrees Celsius is normal for Yao Luntao, deputy director of the Equipment Center of Hebei Meteorological Bureau, and his meteorological equipment support team, who are responsible for pre-competition inspection and in-competition maintenance of meteorological equipment in the core area of the event. Speaking of the three-dimensional second-level wind observation equipment and the ski jumping wind compensation scoring system, Yao Luntao was very pleased: "The successful and smooth operation of this system has extended the meteorological equipment from pre-competition support to the competition process, and can capture and upload wind data in real time to help judges accurately determine the performance of athletes and ensure the safety of athletes." There is a closer connection between weather equipment support workers and athletes."

The reporter interviewed the deputy director of the Equipment center of Hebei Meteorological Bureau, Yao Luntao Tu/Wu Weiguang at the National Ski Jumping Center

In the outside, the potential of the way; Within, seize the opportunity for development. In the post-Winter Olympics era, taking the opportunity of meteorological science and technology innovation to strengthen the service guarantee of "fourteen winters", Hebei Province's refined meteorological forecasting ability has been continuously improved. The internal and external circulation gives rise to new momentum, and the meteorological department of Hebei Province is transforming the scientific and technological achievements of the Beijing Winter Olympics into a new kinetic energy to promote the high-quality development of meteorology.

(Reprinted from wechat public account of China Meteorological Administration)

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