The increase in the magnetic flux from the polar regions of the sun over the last 120 years

被引:8
作者
Makarov, VI [1 ]
Obridko, VN
Tlatov, AG
机构
[1] Main Astron Observ, St Petersburg, Russia
[2] Russian Acad Sci, Inst Terr Magnetism Ionosphere & Radiowave Propag, Troitsk 142092, Moscow Oblast, Russia
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/1.1398924
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The latitudes of the zonal boundaries of the global magnetic field of the Sun are determined from the magnetic neutral lines on synoptic H alpha maps obtained during 1878-1999. The area of the polar zone occupied by magnetic field of a single polarity at solar minima has doubled over the last 120 years. This provides an explanation for the secular increase in heliospheric characteristics, which differs from the two-fold increase of the magnetic field strength predicted for this period. The temporal variations of the magnetic flux from the polar regions and their role in global changes of the Earth's climate arc discussed in connection with secular variations in the structure of the internal magnetic field of the Sun. (C) 2001 MAIK "Nauka/Interperiodica".
引用
收藏
页码:746 / 750
页数:5
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