基于关键影响因素识别的丰满重建工程对雾凇影响分析  

Analysis of the influence of Fengman Reconstruction Project on rime based on the identification of key influencing factors

作　　者：李倩雯 脱友才[2] 靳甜甜[1] 姜昊[3] 林俊强[1] 曲直 张迪 彭期冬[1] LI Qianwen;TUO Youcai;JIN Tiantian;JIANG Hao;LIN Junqiang;QU Zhi;ZHANG Di;PENG Qidong(China Institute of Water Resources and Hydropower Research,Beijing 100038,China;Sichuan University,Chengdu 610065,Sichuan,China;China Renewable Energy Engineering Institute,Beijing 100120,China;Fengman Dam Reconstruction Project Construction Bureau,Jilin 132108,Jilin,China)

机构地区：[1]中国水利水电科学研究院,北京100038 [2]四川大学,四川成都610065 [3]水电水利规划设计总院,北京100120 [4]丰满大坝重建工程建设局,吉林吉林132108

出　　处：《水利水电技术（中英文）》2023年第S01期275-282,共8页Water Resources and Hydropower Engineering

基　　金：国家自然科学基金青年科学基金项目(52209107);吉林丰满水电站全面治理(重建)工程生态环保科技项目

摘　　要：在系统梳理雾凇、气象、水温和电站运行等数据的基础上,分析了各影响因素与雾凇形成和等级的关系,进一步探讨了丰满电站全面治理工程对雾凇岛雾凇形成的潜在影响。研究结果表明:(1)雾凇质量与气温、流量、风速显著负相关,与湿度、气温日较差和水温气温差显著正相关;(2)低气温、高的气温日较差、较大水气温差、高空气湿度、适宜风速等均有利于雾凇的形成,由水域吹向岸边的风向有利于雾凇的形成;(3)全面治理工程完成后,下泄水温有所升高,流量变化不明显,对于下游的雾凇景观有利;(4)在全球气候变化的背景下,雾凇景观受到自然和人为两类因素的影响,需更长时间的监测数据来进行评价。Based on the data of rime,meteorology,water temperature and power station operation,the relationships between the influencing factors and rime formation and grade are analyzed,and the potential influence of comprehensive reconstruction project of Fengman Power Station project on rime formation on the rime island is further discussed.The result show that:(1)Rime quality is significantly negatively correlated with air temperature,flow and wind speed,and significantly positively correlated with humidity,diurnal temperature range and the difference between water temperature and air temperature;(2)Low temperature,high temperature diurnal range,large temperature difference between water and air,high air humidity,suitable wind speed and so on are conducive to the formation of rime.The wind direction from the water to the shore is contribute to the formation of rime;(3)After the completion of the comprehensive reconstruction project,the water temperature of the discharge has increased,the flow change is not obvious,which are beneficial to the formation of the rime landscape in downstream;(4)Under the background of global climate change,rime landscape is affected by both natural and anthropogenic factors,which requires longer monitoring data to evaluate.

关 键 词：雾凇 影响因素 重建工程 丰满水电站 

分 类 号：TV131.2[水利工程—水力学及河流动力学]