中文摘要：

从为时期的全世界的闪电地点网络(WWLLN ) 的数据 20052011 并且为 19952010 的闪电成像 Sensor/Optical 短暂察觉者(LIS/OTD ) 合成的数据被用来分析闪电活动并且它的日报在地球的土地和海洋上的变化。刚果盆显示出一个山峰平均数 160.7 fl km2 yr1 的年度闪光密度根据 LIS/OTD。到海洋闪光比率的年度吝啬的陆地是 9.6:1，它从基督教等证实结果。在 2003 基于仅仅 5 年的 OTD 数据。WWLLN 检测的闪电密度在比 LIS/OTD 的低数量级的一般的。日报在土地上的闪电活动的周期显示出一座单个山峰，与从两数据集在早上发生在 1400-1900 副(本地时间) 和最小附近的最大的活动。海洋日报变化有二座山峰：在 0100 和 0300 副之间的清早山峰和有在在太平洋上的 1100 和 1400 副之间的更强壮的紧张的下午山峰从 WWLLN 数据集揭示了；而日报在在 LIS/OTD 数据集的海洋上的变化显示出一个大变化。

英文摘要：

Data from the World Wide Lightning Location Network （WWLLN） for the period 2005-2011 and data composite of the Lightning Imaging Sensor/Optical Transient Detector （LIS/OTD） for 1995-2010 are used to analyze the lightning activity and its diurnal variation over land and ocean of the globe. The Congo basin shows a peak mean annual flash density of 160.7 fl km-2 yr-1 according to the LIS/OTD. The annual mean land to ocean flash ratio is 9.6：1, which confirms the result from Christian et al. in 2003 based on only 5-yr OTD data. The lightning density detected by the WWLLN is in general one order of magnitude lower than that of the LIS/OTD. The diurnal cycle of the lightning activity over land shows a single peak, with the maximum activity occurring around 1400-1900 LT （Local Time） and a minimum in the morning from both datasets. The oceanic diurnal variation has two peaks： the early morning peak between 0100 and 0300 LT and the afternoon peak with a stronger intensity between 1100 and 1400 LT over the Pacific Ocean, as revealed from the WWLLN dataset; whereas the diurnal variation over ocean in the LIS/OTD dataset shows a large fluctuation.