地物环境对地面大气电场测量的影响  

Influence of surface features on atmospheric electric field near ground

作　　者：周璧华[1] 姜慧[1] 杨波[1] 郭建明[1] 朱凯鄂[1] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《电波科学学报》2010年第5期839-844,共6页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(60971063)

摘　　要：地物环境对地面大气电场测量结果的影响较大,这在地面大气电场仪联网中将会影响以致失去各观测点数据间的可比性。针对这一问题将地面上凸出的建筑物、树木等简化为形状规则的立方体、柱体和球体三种基本单元,分别对这三种基本单元周围的大气电场进行了计算和讨论,并采用电磁场仿真软件Ansoft Maxwell进行了仿真分析,得出了地面凸出物的形状、距离、高度对大气电场影响的解析关系式以及不同条件下的环境修正系数。To eliminate the influence of surface features is significant to the data＇s coherence in an atmospheric electric field detection network. In order to study the influence of surface features on atmospheric electric field near ground, protuber- ances on the ground （eg. buildings, plants etc. ） are modeled as regular cubes, cyl- inders and spheres, and the electric field around these geometries is calculated in theory and simulated with Ansoft Maxwell respectively. Analytic relational expres- sions of the influence with respect to the shapes, relative locations and sizes of the protuberances are found, and the correction parameters of various ground features are given. A correction approach is brought up, and its feasibility is verified by both calculation and simulation.

关 键 词：大气电场 地物 修正系数 ANSOFT MAXWELL 等值线 

分 类 号：TM151[电气工程—电工理论与新技术] P412[天文地球—大气科学及气象学]