Study of some characteristics of large-scale solar magnetic fields during the global field polarity reversal according to observations at the telescope-magnetograph Kislovodsk Observatory

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• 作者：A. G. Tlatov ; D. V. Dormidontov ; R. V. Kirpichev…
• 刊名：Geomagnetism and Aeronomy
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：55
• 期：7
• 页码：969-975
• 全文大小：2,938 KB
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• 作者单位：A. G. Tlatov (1)
  D. V. Dormidontov (1)
  R. V. Kirpichev (1)
  M. P. Pashchenko (1)
  A. D. Shramko (1)
  V. S. Peshcherov (2)
  V. M. Grigoryev (2)
  M. L. Demidov (2)
  P. M. Svidskii (3)
  
  1. Kislovodsk Mountain Astronomical Station (MAS), Central (Pulkovo) Astronomical Observatory, Russian Academy of Sciences (MAO RAS), P.O. Box 145, Kislovodsk, 357700, Russia
  2. Institute of Solar–Terrestrial Physics, Siberian Branch, Russian Academy of Sciences (ISTP SB RAS), ul. Lermontova 126A, Irkutsk, 664033, Russia
  3. Institute of Applied Geophysics (IAG), Rostokinskaya ul. 9, Moscow, 129128, Russia
  
• 刊物主题：Geophysics/Geodesy;
• 出版者：Springer US
• ISSN：1555-645X

文摘

The data obtained at the Routine Prediction Solar Telescope (RPST), which was designed and manufactured mainly at ISTP SB RAS and was installed at Kislovodsk MAS MAO RAN. The telescope is used to register weak large-scale fields throughout the solar disk with an angular resolution about 30 arcsec. The means square error of measurements is ~0.44 G in this case. The MAS MAO RPST observations have been compared with the magnetic fields and other solar activity parameters measured at different ground and space observatories. It was shown that the characteristics of the magnetic fields of active regions and largescale magnetic fields are interrelated. The evolution of the polar magnetic field was considered, and it was shown that the polarity in cycle 24 was reversed in June–July 2013 in the Northern Hemisphere and in December 2014–January 2015 in the Southern Hemisphere. At the same time, it has been noted that the magnetic field strength in the Northern Hemisphere at latitudes higher than 50° varied around zero in 2014, which indicates that the global field sign was reversed for a long time in the Northern Hemisphere.