Abstract

Various aspects of the of geoefficiency of solar-activity phenomena, such as flares and coronal mass ejections (CMEs), are considered. The number of geoefficient events was about two times lower in the 24th cycle than in the 23rd cycle. Statistical data on major flares and the Dst index in different phases of the 24th cycle is compared. Large flares (X-ray class > M5) were analyzed based on data from GOES-15 satellite observations in the 24th solar activity cycle. The three main geomagnetic indices, Ap, Kp, and Dst, were analyzed in comparison with the F_10.7 index and the sunspot number (SSN).

中文翻译：

---

太阳活动的第24个周期：耀斑的地球效率

摘要

考虑了太阳活动现象的地球效率的各个方面，例如耀斑和日冕物质抛射（CME）。在第24周期中，地球效率事件的数量大约比第23周期中少两倍。比较了第24个周期不同阶段的主要耀斑和Dst指数的统计数据。根据第24个太阳活动周期中来自GOES-15卫星观测的数据，分析了大耀斑（X射线等级> M5）。与F _10.7指数和太阳黑子数（SSN）进行了比较，分析了三个主要地磁指数Ap，Kp和Dst。