The 24th Winter Olympic Games will kick off in Beijing on February 4, 2022.
The Sports Department of Chinanews.com has launched a series of column "Hundred Questions about the Winter Olympics", which aims to popularize the knowledge of the Winter Olympics, answer hot questions, share interesting stories of ice and snow, and help everyone have a better viewing experience at the Beijing Winter Olympics.
The 75th Winter Olympics Questions | How much influence does the weather have on the Winter Olympics?
Different from the Summer Olympics, the snow and ice events of the Winter Olympics have special requirements for the environment and venues, and the corresponding conditions must be met.
In addition, the winter outdoor projects also have certain requirements on the climate.
So, how much influence does the weather have on the Winter Olympics?
Judging from the venues of the past 23 Winter Olympics, the previous venues were concentrated in the middle and high latitudes of the northern hemisphere.
Due to the high demands on environmental conditions, the Winter Olympics are generally not suitable for being held in tropical cities.
On February 22, 2018, the men's alpine skiing at the PyeongChang Winter Olympics, the moment of the French player Noel.
(The picture shows multiple exposures)
The snow sports of the Winter Olympics are carried out outdoors, including visibility, snow temperature, and snow quality, which all have varying degrees of influence on the competition.
At the 2018 PyeongChang Winter Olympics, the qualifying event for women's snowboarding on the slopes was adjusted due to weather conditions.
At present, the snow in skiing competitions is generally made of artificial snow, and the snow temperature is required to be less than 0°C; the freestyle aerial skill project requires the average wind speed within one minute of the competition period to be less than 3 m/s; for ski jumping, the instantaneous wind speed is required to be < 3 m/s, No crosswinds, headwinds are better for the game...
Data map: In the Aershan Ski Resort, the skiers are training.
It is understood that Aershan is located in the northeastern part of Inner Mongolia. The annual ice and snow period lasts for 7 months, and the average snow thickness exceeds 350 mm.
Photo by China News Agency reporter Chen Feng
It is understood that because the newly constructed competition venue in Beijing is located in a mountainous area, the terrain is relatively complex and the meteorological observation data is insufficient.
In order to face many challenges, the work related to meteorological services for the Beijing Winter Olympics has already been carried out in depth.
In July 2017, the Beijing Winter Olympics and Winter Paralympics Meteorological Center was established, and a strict observation network was built.
With the Winter Olympics as the core, the Meteorological Department has built a total of 441 sets of modern three-dimensional detection facilities in the urban area of Beijing, Yanqing and Chongli and the surrounding areas, realizing the "super-fine and complex mountain mega-city integration, three-dimensional, second-level, multi-element" winter. Austrian meteorological comprehensive monitoring.
In addition, the meteorological department focused on the precise forecast requirements of "minute-level, 100-meter-level", and established the "Ruitu" numerical forecast model system to achieve 500-meter resolution in the Beijing-Tianjin-Hebei region, 100-meter resolution in the core area of the Winter Olympics Mountain Arena, and 10-by-10 resolution. Quick updates in minutes.
The 100-meter-level live product in the Winter Olympics has also been officially put into use.
The product has a spatial resolution of 100 meters and a time resolution of 10 minutes, which can effectively meet the refined needs of the Winter Olympics meteorological service guarantee.
(Liu Xingchen)