Affiliation:
1. Главная астрономическая обсерватория РАН
2. Central Astronomical Observatory of Pulkovo of RAS
Abstract
This paper considers a longitude distribution of sunspot groups over 1982–2013, using data from the National Geophysical Data Center (Boulder, USA). The space-time distribution of sunspot groups is analyzed in coordinate sectors calculated from heliographic longitudes of the groups. A longitude extent of a coordinate sector is compared to the average size of one active region (30–40°). Then, in each coordinate sector, evolutionary activity of sunspot groups is summarized according to Malde classification indices throughout the observation period. The longitude distribution of large sunspot groups made in such a way does not reveal anticorrelation between Northern and Southern hemispheres in sunspot cycle 23.
Publisher
Infra-M Academic Publishing House
Subject
Space and Planetary Science,Atmospheric Science,Geophysics
Reference19 articles.
1. Астафьева Н.М. Вейвлет-анализ: основы теории и примеры применения // Успехи физических наук. 1996. Т. 166, № 11. С. 1145–1170., Astaf’eva N.M. Wavelet analysis: Theory grounds and examples of applications. Uspekhi fizicheskikh nauk. [Physics-Uspekhi (Advances in Physical Sciences)]. 1996, vol. 166, iss. 11, pp. 1145–1170 (in Russian).
2. Витинский Ю.И. К вопросу об особенностях долготного распределения солнечной активности // Известия ГАО РАН. 1960. № 163. С. 96–105., Benevolenskaya E.E., Hoeksema J.T., Kosovichev A.G., Scherrer P.H. The interaction of new and old magnetic fluxes at the beginning of solar cycle 23. The Astrophys. J. 1999, vol. 517, iss. 2, pp. 163–166. DOI: 10.1086/312046.
3. Витинский Ю.И. Морфология солнечной активности. М.: Наука, 1966. С. 199., Cowling T.G. On the Sun´s general magnetic field. Monthly Notices of the Royal Astronomical Society. 1945, vol. 105, p. 166. DOI: 10.1093/mnras/105.3.166.
4. Витинский Ю.И. Центры активности и их активные долготы // Известия ГАО РАН. 1971. № 189–190. С. 10–22., Erofeev D.V. The relationship between kinematics and spatial structure of the large-scale solar magnetic field. Solar Phys. 1997, vol. 175, iss. 1, pp. 45–58. DOI: 10.1023/ A:1004981317538.
5. Иванов Е.В. Пространственно-временное распределение факелов и пятен // Солнечные данные. 1986. № 7. С. 61–72., Ivanov E.V. On space-time distribution of faculae and sunspots. Solnechnye dannye. Byul. [Solar Data Bulletin] 1986, no. 7, p. 61 (in Russian).