NSSC OpenIR
冕洞特征参数与地磁暴强度及发生时间统计
Alternative TitleStatistical Study between Characteristic Parameters of Coronal Holes and Intensity/Time of Geomagnetic Storms
卜萱; 罗冰显; 刘四清; 龚建村; 曹勇; 王宏
Source Publication空间科学学报
2020
Volume40Issue:1Pages:9-19; AR:0254-6124(2020)40:1<9:MDTZCS>2.0.TX;2-7
ISSN0254-6124
Language中文
Keyword冕洞 地磁暴 统计分析 预报 Coronal hole Geomagnetic storm Statistical analysis Prediction
Abstract地磁暴是空间天气预报的重要对象.在太阳活动周下降年和低年,冕洞发出的高速流经过三天左右行星际传输到达地球并引发的地磁暴占主导地位.目前地磁暴的预报通常依赖于1AU处卫星就位监测的太阳风参数,预报提前量只有1h左右.为了增加地磁暴预报提前量,需要从高速流和地磁暴的源头即太阳出发,建立冕洞特征参数与地磁暴的定量关系.分析了2010年5月到2016年12月的152个冕洞-地磁暴事件,利用SDO/AIA太阳极紫外图像提取了两类冕洞特征参数,分析了其与地磁暴期间ap,Dst和AE三种地磁指数的统计关系,给出冕洞特征参数与地磁暴强度以及发生时间的统计特征,为基于冕洞成像观测提前1~3天预报地磁暴提供了依据.
Other AbstractGeomagnetic storm is an important subject in space weather forecasting.High speed solar wind originating from coronal holes passes through the interplanetary space about three days before reaching the Earth.It triggers geomagnetic storms which are dominant during the declining phase and the minimum year of a solar cycle.At present,geomagnetic storms forecasting mostly relies on solar wind parameters at 1AU,and geomagnetic storms are predicted in advance only by about 1 hour.In order to predict geomagnetic storms much earlier,it is necessary to establish the quantitative relationship between the characteristic parameters of coronal holes and geomagnetic storms from the point of the Sun,which is the source of high speed solar wind and geomagnetic storm.In this study,152 coronal holes and relevant geomagnetic storms events from May 2010 to December 2016 are analyzed.Two characteristic parameters of coronal holes are extracted based on SDO/AIA images,and the geomagnetic index ap,Dst and AE during geomagnetic storms are analyzed.The statistical relationship between characteristic parameters of coronal holes and intensity/time of geomagnetic storms is established,which provides a basis for predicting geomagnetic storms in advance by 1 ~3 days based on solar EUV images.
Indexed ByCSCD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7463
Collection中国科学院国家空间科学中心
Affiliation1.卜萱, 中国科学院国家空间科学中心
2.中国科学院大学
3.中国科学院空间环境态势感知技术重点实验室
4.中国科学院空间环境态势感知技术重点实验室
5.北京 100190
6.100049
7.100190, 中国.
8.罗冰显, 中国科学院国家空间科学中心
9.中国科学院大学
10.中国科学院空间环境态势感知技术重点实验室
11.中国科学院空间环境态势感知技术重点实验室
12.北京 100190
13.100049
14.100190, 中国.
15.刘四清, 中国科学院国家空间科学中心
16.中国科学院大学
17.中国科学院空间环境态势感知技术重点实验室
18.中国科学院空间环境态势感知技术重点实验室
19.北京 100190
20.100049
21.100190, 中国.
22.龚建村, 中国科学院国家空间科学中心
23.中国科学院空间环境态势感知技术重点实验室,
24.中国科学院空间环境态势感知技术重点实验室
25.北京
26.北京 100190
27.100190, 中国.
28.曹勇, 哈尔滨工业大学深圳研究生院, 深圳, 广东 518055, 中国.
29.王宏, 哈尔滨工业大学深圳研究生院, 深圳, 广东 518055, 中国.
30.Bu Xuan, National Space Science Center,Chinese Academy of Sciences
31.University of Chinese Academy of Sciences
32.Key Laboratory of Science and Technology on Environmental Space Situation Awareness,Chinese Academy of Sciences
33.Key Laboratory of Science and Technology on Environmental Space Situation Awareness,Chinese Academy of Sciences
34., Beijing
35.Beijing
36.Beijing 100190
37.100049
38.100190.
39.Luo Bingxian, National Space Science Center,Chinese Academy of Sciences
40.University of Chinese Academy of Sciences
41.Key Laboratory of Science and Technology on Environmental Space Situation Awareness,Chinese Academy of Sciences
42.Key Laboratory of Science and Technology on Environmental Space Situation Awareness,Chinese Academy of Sciences
43., Beijing
44.Beijing
45.Beijing 100190
46.100049
47.100190.
48.Liu Siqing, National Space Science Center,Chinese Academy of Sciences
49.University of Chinese Academy of Sciences
50.Key Laboratory of Science and Technology on Environmental Space Situation Awareness,Chinese Academy of Sciences
51.Key Laboratory of Science and Technology on Environmental Space Situation Awareness,Chinese Academy of Sciences
52., Beijing
53.Beijing
54.Beijing 100190
55.100049
56.100190.
57.Gong Jiancun, National Space Science Center,Chinese Academy of Sciences
58.Key Laboratory of Science and Technology on Environmental Space Situation Awareness,Chinese Academy of Sciences,
59.Key Laboratory of Science and Technology on Environmental Space Situation Awareness,Chinese Academy of Sciences
60.Beijing
61.Beijing 100190
62.100190.
63.Cao Yong, Shenzhen Graduate School,Harbin Institute of Technology, Shenzhen, Guangdong 518055, China.
64.Wang Hong, Shenzhen Graduate School,Harbin Institute of Technology, Shenzhen, Guangdong 518055, China.
65.buxuanshixian@163.com
Recommended Citation
GB/T 7714
卜萱,罗冰显,刘四清,等. 冕洞特征参数与地磁暴强度及发生时间统计[J]. 空间科学学报,2020,40(1):9-19; AR:0254-6124(2020)40:1<9:MDTZCS>2.0.TX;2-7.
APA 卜萱,罗冰显,刘四清,龚建村,曹勇,&王宏.(2020).冕洞特征参数与地磁暴强度及发生时间统计.空间科学学报,40(1),9-19; AR:0254-6124(2020)40:1<9:MDTZCS>2.0.TX;2-7.
MLA 卜萱,et al."冕洞特征参数与地磁暴强度及发生时间统计".空间科学学报 40.1(2020):9-19; AR:0254-6124(2020)40:1<9:MDTZCS>2.0.TX;2-7.
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