Abstract


  STATISTICAL STUDY OF SPATIO-TEMPORAL DISTRIBUTION OF SOLAR FLARE AND CME OCCURRENCES

  N. Gyenge, University of Sheffield, n.g.gyenge@sheffield.ac.uk

Many flare and CME prediction models employ the properties of active regions, such as morphological information, area or the magnetic field of sunspot groups. The spatial distribution of active regions has not been used widely, such as longitudinal distribution. If the most flare and CME productive active regions tend to be located in or close to the active longitudinal belt then, this may allow to predict the geo-eff ective position of the domain of enhanced erupting probability for a couple of month or years ahead. The spatial and temporal properties of solar flares and CMEs have been studied. There is a narrow longitudinal belt of enhanced sunspot activity. The results show that the enhanced longitudinal belt plays a crucial role in the global position of solar flare and CME occurrences.