CAJ | 학술논문

利用2007~2011年的地闪资料，从闪电频数、月变化、日变化、电流强度、空间密度等方面研究了山东省夏季闪电的时空分布特征。研究发现：夏季负地闪占总地闪的绝大数；总闪频数在夏季（6~8月）是逐月递增的，正闪比例逐月递减，负闪频数变化与总闪有很好的一致性；地闪频数日变化呈现明显的双峰双谷型，正闪频数的变化是滞后于负闪的；正闪的电流强度均值大于负闪，在高强度区，正闪比例高于负闪；通过分析地闪空间密度分布发现，总体呈现山区大于平原，南多北少，地闪主要分布在鲁中、鲁南山区及胶东半岛。
이용2007~2011년적지섬자료，종섬전빈수、월변화、일변화、전류강도、공간밀도등방면연구료산동성하계섬전적시공분포특정。연구발현：하계부지섬점총지섬적절대수；총섬빈수재하계（6~8월）시축월체증적，정섬비례축월체감，부섬빈수변화여총섬유흔호적일치성；지섬빈수일변화정현명현적쌍봉쌍곡형，정섬빈수적변화시체후우부섬적；정섬적전류강도균치대우부섬，재고강도구，정섬비례고우부섬；통과분석지섬공간밀도분포발현，총체정현산구대우평원，남다북소，지섬주요분포재로중、로남산구급효동반도。
Based on the data of cloud-to-ground lightning (2007~2011), the spatial and temporal distributions of lightning were studied from many aspects including diurnal and monthly variations of lightning frequency, current strength, and space density in Shandong Province. The results indicated that most ground lightings in summer are predominantly negative. The total and negative lightning frequencies in summer (June-August) show a similar characteristic of increasing month by month while the ratio of positive lightning declining. The diurnal variation of the ground lightning show a shape with two peak-valleys and the frequency variation of positive lightning lags behind the negative. In the high intensity zone, positive lightning has the larger proportion and greater average of current intensity than the negative lightning. Cloud-to-ground lightning mainly occurs in the middle and southern mountain area and the Shandong Peninsula and there is a greater general spatial density in the south and mountains and less in the north and plains in Shandong.