The automatic processing and analysis of solar image sequences

被引:1
作者
Persiantsev I.G. [1 ]
Ryazanov A.Yu. [1 ]
Shugai Ju.S. [1 ]
机构
[1] Skobel'tsyn Institute of Nuclear Physics, Moscow State University, Vorob'evy gory, Moscow
关键词
Solar Wind; Coronal Hole; Geomagnetic Storm; Solar Wind Velocity; Central Meridian;
D O I
10.1134/S1054661806010093
中图分类号
学科分类号
摘要
An algorithm for the analysis of sequential images of the Sun is presented and tested with the imagery obtained by the SOHO satellite. In the context of space weather monitoring, it is interesting to reveal the sources of fast solar wind on the surface of the Sun. Examples of such sources are coronal holes, which may cause a fast flow of solar wind when crossing the central meridian of the Sun. The proposed algorithm determines the area and location of coronal holes. The calculated dynamics of the hole areas and of the observed solar wind velocity are compared from August 1 to December 31, 2003. © Pleiades Publishing, Inc., 2006.
引用
收藏
页码:30 / 32
页数:2
相关论文
共 5 条
  • [1] Bothmer V., Veselovski I.S., Dmitriev A.V., Et al., Solar and heliospheric causes of geomagnetic perturbations during the growth phase of solar cycle 23, Solar System Research, 36, 6, pp. 499-506, (2002)
  • [2] Bravo S., Stewart G.A., The correlation between sunspot and coronal holes cycle and a forecast of the maximum of sunspot cycle 23, Sol. Phys., 173, pp. 193-198, (1997)
  • [3] Maksimov V.P., Solar Factors Determining the State of Space Weather and the Problems of Their Forecasting
  • [4] Shugai Ju.S., Et al., Neural network algorithms of forecasting events and search of precursors in multidimensional time series, Iskusstvennyi Intellekt (Donetsk), 2, pp. 211-215, (2004)
  • [5] Watari Sh., The solar drivers of geomagnetic disturbances during solar minimum, Geophys. Res. Lett., 25, 14, pp. 2489-2492, (1998)