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A brief review on the presentation of cycle 24, the first integrated solar cycle in the new millennium
Li KJ(李可军)1,2; Feng, W3; Liang, HF4; Zhan, LS5; Gao PX(高朋鑫)1; Li, KJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationANNALES GEOPHYSICAE
2011
Volume29Issue:2Pages:341-348
DOI10.5194/angeo-29-341-2011
Contribution Rank第1完成单位
Indexed BySCI ; EI
KeywordGeneral Or Miscellaneous Solar Physics Astrophysics And Astronomy
AbstractThe status of the extended solar activity minimum, since the second half of 2007, has been briefly instructed to the solar-terrestrial community. Cycle 24 has the most spotless days since cycle 16, and probably even since the modern cycles, latitudes of high-latitude (> 35 degrees) sunspots belonging to a new cycle around the minimum time of the cycle are statistically the lowest at present, compared with those of cycle 12 onwards, and there is only one or no sunspots in a month appearing at high latitudes (> 20 degrees) for 58 months ( from November 2003 to September 2008), which is observed for the first time since cycle 12 onwards. The solar wind velocity and pressure, 10.7 cm solar radio flux, the polar solar magnetic field, solar total irradiance, and so on reach their minima during the 23-24 cycle minimum time. In order to explain the present extreme low activity, we introduced here one possible mechanism using helio-seismology observations. Viewing, from the long-term running of the time scales of both the Gleissberg period and millenniums, the extended solar activity minimum becomes logical. According to the present observations, the cycle 24 should start in November 2008. Solar activity is predicted at being about 30% lower in cycle 24 than in cycle 23, synthesizing the typical predictions of solar activity, including those given by NASA and NOAA. The 24th solar cycle is sluggishly coming and it should be an opportune moment for studying solar physics and solar-terrestrial physics.
Funding OrganizationNSFC [10873032, 10921303, 11073010, 40636031] ; National Key Research Science Foundation [2011CB811400] ; Chinese Academy of Sciences
Language英语
Subject AreaAstronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
SubtypeArticle
ISSN0992-7689
URL查看原文
Archive Date2011-03-08
WOS IDWOS:000287800700012
WOS Research AreaAstronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS SubjectAstronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS KeywordGROUP SUNSPOT NUMBERS ; MAXIMUM AMPLITUDE ; SMALLEST CYCLE ; MINIMUM ; DYNAMO ; BEHAVIOR ; FLUX ; SUN
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6185
Collection太阳物理研究组
Corresponding AuthorLi, KJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
3.Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
4.Department of Physics, Yunnan Normal University, Kunming 650093, China
5.Jingdezhen Ceramic Institute, Jingdezhen 333001, Jiangxi, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li KJ,Feng, W,Liang, HF,et al. A brief review on the presentation of cycle 24, the first integrated solar cycle in the new millennium[J]. ANNALES GEOPHYSICAE,2011,29(2):341-348.
APA Li KJ,Feng, W,Liang, HF,Zhan, LS,Gao PX,&Li, KJ .(2011).A brief review on the presentation of cycle 24, the first integrated solar cycle in the new millennium.ANNALES GEOPHYSICAE,29(2),341-348.
MLA Li KJ,et al."A brief review on the presentation of cycle 24, the first integrated solar cycle in the new millennium".ANNALES GEOPHYSICAE 29.2(2011):341-348.
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