Characteristics Analysis of Over-threshold Wind and Extreme Wind in Yakeshi Venue of Winter Games
Li Xiaorong
Wang Han
Chang Yu
Li Ling
Li Tingxuan
Abstract：The Phoenix Mountain Ski Resort in Yakeshi is one of the venues of the 14th National Winter Games.Based on the data of the automatic weather station in February 2019 in the venue,the characteristics of over-threshold wind process(OWP)and extreme wind process(EWP),diurnal varia-tion and their relationship with terrain are analyzed.The results show that the Yakeshi venue is located on the south-west slope,the numbers of OWP and EWP descend from the high part to the low part of the venue.The longest durations of OWP and EWP are 21 h and 6 h respectively,and the peak wind speed tends to occur in 12:00-15:00.The maximum wind speeds of EWP and the OWP lasting less than 12 h increase with time.Affected by the mountain terrain,the OWP at the entrance of the gorge on the west side of the competition venue has the longest duration.EWP and OWP are prone to occur at the high alti-tude on the north side of the venue,and the wind speed is the largest.Affected by the high terrain in the northwest of the venue,the dominant wind of EWP and OWP is southwest wind,while the dominant wind in the rest of the venue is west wind.
Keywords：over-threshold wind processextreme wind processpersistencediurnal variationter-rain influence
Publication Date：2025-05-30
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：9( 51-59 )