标题： 不同纬度下日冕物质抛射发生率的时间和空间行为 显示英文标题

标题： The Temporal and Spatial Behaviors of CME Occurrence Rate at Different Latitudes

摘要： 对日冕物质抛射（CMEs）的统计研究是太阳物理中的热门课题。 为了进一步揭示不同纬度和高度下CMEs的时间和空间行为，我们分析了CMEs的发生率、日冕亮度指数（CBI）和10.7厘米太阳射电通量（F10.7）之间的相关性和相位关系。 我们发现，在高纬度（>=60）处，CMEs的发生率与CBI的相关性比在低纬度（<=50）处更强。 在低纬度处，CMEs的发生率与CBI的相关性比与F10.7的相关性较弱。 在太阳活动周期24（SC24）期间，CMEs、F10.7和CBI之间的相关性比在太阳活动周期23（SC23）期间更强。 在SC23期间，高纬度CME发生率滞后于F10.7三个月，而在SC24期间，低纬度CME发生率领先于低纬度CBI一个月。 当从CDAW目录的样本中去除非常微弱的CME时，相关系数值变得更大。 基于我们的结果，我们可以推测，高/低纬度CME的源区可能在高度上有所不同，磁能的积累和耗散过程是从太阳较低的大气层到上层大气。 不同指标之间的时间偏移可以帮助我们更好地理解导致太阳-地球相互作用的物理过程。 显示英文摘要

摘要： The statistical study of the Coronal Mass Ejections (CMEs) is a hot topic in solar physics. To further reveal the temporal and spatial behaviors of the CMEs at different latitudes and heights, we analyzed the correlation and phase relationships between the occurrence rate of CMEs, the Coronal Brightness Index (CBI), and the 10.7-cm solar radio flux (F10.7). We found that the occurrence rate of the CMEs correlates with CBI relatively stronger at high latitudes (>=60) than at low latitudes (<=50). At low latitudes, the occurrence rate of the CMEs correlates relatively weaker with CBI than F10.7. There is a relatively stronger correlation relationship between CMEs, F10.7, and CBI during Solar Cycle 24(SC24) than Solar Cycle 23 (SC23). During SC23, the high-latitude CME occurrence rate lags behind F10.7 by three months, and during SC24, the low-latitude CME occurrence rate leads to the low-latitude CBI by one month. The correlation coefficient values turn out to be larger when the very faint CMEsare removed from the samples of the CDAW catalog. Based on our results, we may speculate that the source regions of the high/low-latitude CMEs may vary in height, and the process of magnetic energy accumulation and dissipation is from the lower to the upper atmosphere of the Sun. The temporal offsets between different indicators could help us better understand the physical processes responsible for the solar-terrestrial interactions.