Solar Cycle Variations of Large-Scale Flows in the sun

被引：0
|
作者：
Sarbani Basu
H.M. Antia
机构：
[1] Institute for Advanced Study,Astronomy Department
[2] Olden Lane,undefined
[3] Yale University,undefined
[4] Tata Institute of Fundamental Research,undefined
来源：
Solar Physics | 2000年 / 192卷
关键词：
Convection; Solar Activity; Solar Cycle; Lower Latitude; Outer Part;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Using data from the Michelson Doppler Imager (MDI) instrument on board the Solar and Heliospheric Observatory (SOHO), we study the large-scale velocity fields in the outer part of the solar convection zone using the ring diagram technique. We use observations from four different times to study possible temporal variations in flow velocity. We find definite changes in both the zonal and meridional components of the flows. The amplitude of the zonal flow appears to increase with solar activity and the flow pattern also shifts towards lower latitude with time.
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页码：469 / 480
页数：11
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