北疆电线积冰的分布及区划  

The Temporal and Spatial Distribution Characteristics and the Division of Wire Icing in Northern Xinjiang

作　　者：张小军 庄文兵 肯巴提·波拉提 ZHANG Xiaojun;ZHUANG Wenbing;Kenbati Bolati(Institute of State Grid Xinjiang Company Limited Electric Power Research,Urumqi 830011,China;Xinjiang Meteorological Service Center,Urumqi 830002,China)

机构地区：[1]国网新疆电力有限公司电力科学研究院,新疆乌鲁木齐830011 [2]新疆气象服务中心,新疆乌鲁木齐830002

出　　处：《沙漠与绿洲气象》2021年第3期117-121,共5页Desert and Oasis Meteorology

摘　　要：利用北疆8个气象站1986—2015年电线积冰观测资料对北疆电线积冰的时空分布及区划作了初步分析。分别采用极值Ⅰ型和皮尔逊Ⅲ型概率分布函数,推算了不同重现期的积冰厚度并进行了检验对比,根据最大积冰厚度重现水平,对北疆积冰进行了区划。结果表明:电线积冰大多发生在冬半年,1和12月出现频率最高;电线积冰出现最多的地区是福海,最少的是塔城;平均标准冰厚最厚地区为昭苏;精河30 a、50 a一遇的设计冰厚在中冰区,其他各站点30、50 a一遇的设计冰厚都在重冰区,100 a一遇所有站点都在重冰区。Based on the wires icing observation data from 1986 to 2015 in Northern Xinjiang,the temporal and spatial distribution characteristics and the division of wire icing were analyzed.The extreme value type Ⅰ and Pearson type Ⅲ probability distribution functions were used to calculate the ice thickness in different reoccurrence periods and tested and compared them.According to the reoccurrence level of the maximum ice thickness,the ice thickness in northern Xinjiang was divided.The main conclusions showed that:wires icing occurred mainly in winter,and the frequency of wire icing in January and December was higher than that in other months.The highest frequency of wire icing happened in Fuhai,while the lowest in Tacheng.The maximum standard wire thickness was in Zhaosu.Estimated the extreme wire icing thickness with a reoccurrence period of 30 years,50 years and 100 years by means of the extreme value type I distribution.The designed ice thickness of Jinghe was located in the middle icing area for reoccurrence period of 30 years and 50 years,while the others stations with a recurrence period of 30 years and 50 years were located in the heavy icing area and the stations with a reoccurrence period of 100 years were all in heavy icing area.

关 键 词：电线积冰 标准冰厚 冰区划分 

分 类 号：P426.33[天文地球—大气科学及气象学]