中国区域Dst指数数据集(2010-2022)  

A dataset of Dst Indexes in China(2010–2022)

作　　者：李晖 刘子谦 Hui;LIU Zi-Qian(State Key Laboratory of Space Weather,National Space Science Center,Chinese Academy of Sciences,Beijing100190,P.R.China;University of Chinese Academy of Sciences,Beijing 100049,P.R.China)

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

出　　处：《中国科学数据（中英文网络版）》2023年第4期322-328,共7页China Scientific Data

基　　金：国家自然科学基金(42022032,41874203,42188101,41871256);中国科学院国际合作局对外合作重点项目(183311KYSB20200017,131C11KYSB20160061);国家发展和改革委员会促进大数据发展重大工程项目(2016-999999-65-01-000696-01)。

摘　　要：地球磁层环电流所造成的中低纬度地区地表磁场水平分量的剧烈扰动,可以通过暴时扰动指数(Dst)来表征。由于磁暴期间环电流的不对称性,不同地方时的地磁扰动水平存在显著差异,无法用全球平均的Dst指数来准确反映。本文利用子午工程拉萨、成都、武汉、杭州四个台站的地磁观测数据,计算得到了中国区域Dst指数(c Dst)数据集。本数据集包括2010–2022年中国区域Dst指数,共计109608条数据。相比Dst指数,本数据集可以更好地描述中国区域的地磁扰动,有望为中国区域空间天气研究提供数据支撑。The axisymmetric disturbance of the Geomagnetic field caused by the ring current can be quantified using the Disturbance storm-time(Dst)index.Due to the asymmetry of the ring current during the storm time,there are s notable variations in the geomagnetic disturbance levels at different locations,which cannot be accurately reflected by the globally averaged Dst index.In this paper,we collected and calculated the geomagnetic data of the Chinese Meridian Project in Lasa,Chengdu,Wuhan and Hangzhou,so as to produce a dataset of Dst Indexes in China.This dataset includes Chinese Dst indexes from 2010 to 2022,with a total of 109,608 entries of data.In addition to the comprehensive collection of Dst indexes,this dataset can be used to better describe the geomagnetic disturbances in the Chinese region and is expected to furnish valuable data for regional space weather research in China.

关 键 词：中国区域Dst指数 DST指数 子午工程 磁通门磁力仪 

分 类 号：P35[天文地球—空间物理学]