西藏阿里地区的晴天大气电场特征  

Characteristics of Fair-weather Atmospheric Electric Field in Tibetan Ngari Prefecture

作　　者：王诗涵 李磊 陈涛 宋佳军[3] 提烁 李文 罗静 苏建峰 蔡春林 李仁康 吴晗 WANG Shihan;LI Lei;CHEN Tao;SONG Jiajun;TI Shuo;LI Wen;LUO Jing;SU Jianfeng;CAI Chunlin;LI Renkang;WU Han(State Key Laboratory of Space Weather,National Space Science Center,Chinese Academy of Sciences,Beijing 100190;University of Chinese Academy of Sciences,Beijing 100049;Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190;College of Physics and Electronic Information,Yunnan Normal University,Kunming 650500;Department of Earth and Spacee Sciences,Southern University of Science and Technology,Shenzhen 518055)

机构地区：[1]中国科学院国家空间科学中心、空间天气学国家重点实验室,北京100190 [2]中国科学院大学,北京100049 [3]中国科学院电工研究所,北京100190 [4]云南师范大学物理与电子信息学院,昆明650500 [5]南方科技大学地球与空间科学学院,深圳518055

出　　处：《空间科学学报》2022年第6期1137-1144,共8页Chinese Journal of Space Science

基　　金：中国科学院战略性先导科技专项(XDA17010301,XDA17040505,XDA15052500,XDA15350201);中国科学院国家空间科学中心重点培育方向与攀登计划主任基金项目(E0PD41A11S);国家自然科学基金项目(41874175,41931073);国家重点实验室专项基金项目;国家重大科技基础设施子午工程项目;云南省基础研究青年项目(2019FD111)共同资助。

摘　　要：晴天大气电场是一个区域大气电场变化的基准场,是大气电场特性的研究基础。对于具有不同地质条件、地理环境和地形特点的区域,晴天大气电场特征具有明显区别。利用在西藏阿里地震台(80.12°E,32.51°N)安装的一台场磨式大气电场仪于2021年10月10日至2021年11月10日观测到的数据,通过对大气电场数据建模与分析,结合气象条件,得到西藏阿里地区23天晴天条件下的平均卡耐基曲线。经过平滑处理去除仪器噪声的波动,得到西藏阿里地区的晴天条件下的标准卡耐基曲线,进而与北京市昌平区十三陵观测台站(116.23°E,40.25°N)同期的晴天大气电场特征进行对比,并对其电场特性差异和原因进行了讨论。研究结果对分析高原地区晴天大气电场特征具有重要的参考价值和科学意义。Fair-weather atmospheric electric field is the benchmark field of atmospheric electric field variation in a region,and is the basis for studying the characteristics of the atmospheric electric field in the region.However,it is significantly different for different geological conditions,different geographical environments and topography.The research team of Meridian Project of National Space Science Center of Chinese Academy of Sciences has installed a mill-type atmospheric electric field meter at Tibetan Ngari Prefecture seismic station(80.12°E,32.51°N),and this paper is mainly based on the atmospheric electric field observation data of this meter from 10 October 2021 to 10 November 2021,through the data modeling and analysis of the atmospheric electric field meter,combined with the analysis of meteorological conditions.The average Carnegie curves were obtained for 23 days of clear sky conditions in Tibetan Ngari Prefecture region.In order to obtain the standard Carnegie curve,the curve was smoothed to remove the fluctuation of the instrument noise,and then the characteristics of the fair-weather atmospheric electric field in Tibetan Ngari Prefecture region were summarized and compared with the fairweather Carnegie curve of Beijing Changping DistrictⅩⅢLing Observatory(116.23°E,40.25°N),and its characteristics and reasons were discussed.It has important reference value and scientific significance to study the characteristics of the electric field in the plateau region.

关 键 词：晴天大气电场 西藏阿里地区 卡耐基曲线 

分 类 号：P353[天文地球—空间物理学]