Possible influence of the 11-year solar cycle on length-of-day change

被引：0
作者：
Lihua Ma
机构：
[1] Chinese Academy of Sciences,National Astronomical Observatories
来源：
Studia Geophysica et Geodaetica | 2015年 / 59卷
关键词：
solar activity; Earth rotation; length-of-day; 11-year cycle;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Earth variable rotation with its complex state of motion and excitation mechanism that indicates complex overall geodynamical process of the Earth’s system, reflects interactions among the solid Earth, atmosphere and oceans, etc. Solar activity has been found to be strongly correlated with some geophysical processes in the Earth system. In order to investigate the affects of solar activity on Earth rotation using the wavelet transform technique, the yearly Earth’s length-of-day (LOD) time series spanning hundreds of years is used to investigate the presence of the 11-year periodic component. The results show obvious fluctuation in the LOD variations. We suggest that the solar activity plays an important role in the oscillation of the Earth rotation, and that there is a possible relationship between solar activity and Earth rotation on decadal time scale.
引用
收藏
页码：477 / 488
页数：11
相关论文
共 57 条
  • [1] Abarca del Rio R(2003)Solar activity and earth rotation variability J. Geodyn. 36 423-443
  • [2] Gambis D(1996)Monte Carlo SSA: Detecting irregular oscillations in the presence of coloured noise J. Clim. 9 3373-3404
  • [3] Salstein D(1971)Variations in the rate of rotation of the Earth Science 172 1022-1024
  • [4] Nelson P(1980)Detection of the 11-yr sunspot cycle signal in Earth rotation Geophys. J. R. Astr. Soc. 61 131-140
  • [5] Dai A(1981)Solar activity and Earth’s rotation Astron. Astrophys. 100 156-158
  • [6] Allen MR(1983)Short-period geomagnetic, atmospheric, and earth-rotation variations Astron. Astrophys. 118 26-28
  • [7] Smith LA(1976)The Maunder minimum Science 192 1189-1202
  • [8] Challinor RA(1991)Length of the solar cycle: An indicator of solar activity closely associated with climate Science 254 698-700
  • [9] Currie RG(2004)Application of the cross wavelet transform and wavelet Nonlinear Process. Geophys. 11 561-566
  • [10] Djurovic D(2001)A combined length-of-day series spanning 1832–1997: LUNAR97 Phys. Earth Planet. Inter. 123 65-76
123456