| 摘要: |
| 为分析热带季风雨林气候下铁路运行高影响天气的分布特征，本文利用西双版纳州2013—2022年雷电定位系统和88个气象站气象观测资料，根据高速铁路安全运行高影响天气条件等级标准，分析中老铁路（西双版纳段）沿线的雷电、强降雨、大风三种高影响天气的时空分布特征。结果表明:西双版纳铁路沿线雷电对列车运行有较大影响，影响呈现出从普洱进入西双版纳至磨憨是逐渐减弱的趋势；短时强降水是影响西双版纳段铁路沿线最严重的不良气象条件，对铁路运行有较大影响，处于有严重影响的风险也较高；大风对西双版纳段列车运行有严重影响的概率不大，大部处于有一定影响的级别。【结论】因此，西双版纳段的铁路运行中要特别注意短时强降水的影响，其中景洪区段内的路段要注意雷电的影响。 |
| 关键词: 西双版纳；铁路；高影响天气 |
| DOI： |
| 投稿时间：2023-11-01修订日期：2024-02-07 |
| 基金项目: |
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| Analysis of Spatio-temporal Distribution Characteristics of High-impact weather along the Xishuangbanna Section of China-Laos Railway |
| hongqunyan,zhengxiaoze,gaotingting,yangruisijie |
| (xishuangbannazhouqixiangju) |
| Abstract: |
| To analyze the spatial and temporal distribution characteristics of high-impact weather along the railway in the tropical monsoon rainforest climate,this study utilized the lightning positioning system data from 2013 to 2022 in Xishuangbanna State and meteorological observations from 88 weather stations. Based on the criteria for high-impact weather conditions for safe operation of high-speed railways, the study analyzed the spatial and temporal distribution characteristics of lightning, heavy rainfall, and strong winds along the Xishuangbanna section of the China-Laos railway. The results show that lightning along Xishuangbanna railway has great influence on train operation, and the influence gradually weakens from Pu"er to Xishuangbanna to Mohan; Short-term heavy precipitation is the most serious adverse meteorological condition affecting the railway in Xishuangbanna section, which has a great impact on the railway operation and is at a high risk of serious impact; It is unlikely that strong winds will seriously affect the train operation in Xishuangbanna section, and most of them are at a certain level of influence.Therefore, special attention should be paid to the impact of short-term heavy rainfall during the operation of the Xishuangbanna section of the railway, particularly in the Jinghong area, where lightning should also be taken into consideration. |
| Key words: Xishuangbanna；Railways；High-impact weather |
