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气象:2017,43(1):84-90
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探测环境变化对密云气象站地面风观测的影响
(1.宁夏气象防灾减灾重点实验室,银川 750002 宁夏大气探测技术保障中心,银川750002;2.宁夏吴忠市气象局,吴忠751100;3.中国气象局气象探测中心,北京100081;4.北京市密云县气象局,北京101500)
Effect of Observation Environment Change on Surface Wind at Miyun Station
(1.Ningxia Key Laboratory of Meteorological Disaster Prevention and Mitigation, Yinchuan 750002 Ningxia Meteorological Technical Support Centre, Yinchuan 750002;2.Wuzhong Meteorological Office of Ningxia, Wuzhong 751100;3.Meteorological Observation Centre, CMA, Beijing 100081;4.Miyun Meteorological Office of Beijing, Beijing 101500)
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投稿时间:2016-12-16    修订日期:2016-08-12
中文摘要: 文章利用密云站、上甸子站1994—2013年的地面风观测资料,以上甸子站作为参考站,对比分析了密云站第二阶段与第一阶段风观测值的差异。结果表明:第二阶段风速平均值较第一阶段减小了0.5 m·s-1; 2013年年平均风速受台站周围环境影响最大;观测场周围障碍物对不同季节、月平均风速影响程度为:春季最大,夏季最小;3月最大,8月最小;观测场周围环境对西南偏西风风速影响最大,对1~2 m·s-1风速频率影响最大。第二阶段静风频率增加了5.5%;各季静风频率均有增加,冬季最大,春季最小,秋季大于夏季。
Abstract:Employing the observation surface wind data from Miyun Station and Shangdianzi Station from 1994 to 2013, the wind observation difference between the first stage and the second stage at Miyun Station is analyzed. The results indicate that the average wind speed of the second stage is reduced by 0.5 m·s-1 compared to the winds in the first stage. The environment around the station affected the annual average wind speed significantly in 2013. The seasonal and monthly wind speeds are affected by the obstacles around the station at different degrees. The maximum attenuation is in spring and March, while the minimum attenuation is in summer and August. The surrounding environment has the greatest impact on the WSW wind velocity and also on the wind speed frequency between 1 m·s-1 and 2 m·s-1. Comparing the first stage, the static wind frequency in the second stage increases by 5.5%, and the frequency of static wind has increased at each season. The most obvious increase is in winter and minimum increase is in spring. The increase in fall is greater than in summer.
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基金项目:公益性行业(气象)科研专项(GYHY201106049)资助
引用文本:
薛筝筝,高英育,郭建侠,薛禄宇,左湘文,2017.探测环境变化对密云气象站地面风观测的影响[J].气象,43(1):84-90.
XUE Zhengzheng,GAO Yingyu,GUO Jianxia,XUE Luyu,ZUO Xiangwen,2017.Effect of Observation Environment Change on Surface Wind at Miyun Station[J].Meteor Mon,43(1):84-90.