CAJ | 학술논문

利用近4 a德清县地闪数据,采用网格法绘制地闪密度图,并对近40 a德清雷县暴日数据进行分析,同时对雷击灾害风险进行区划研究。结果表明：20世纪70—80年代德清县雷暴日较90年代和2000年以后偏多;1971—2000年雷暴日呈下降趋势,但2000年后雷暴日数呈上升趋势;除12月以外每月均有雷暴发生,7月和8月为雷暴日高发期;春夏季雷暴日较多,秋季次之,冬季较少发生雷暴。雷电主要出现在12—13时和15—16时。至2010年,德清县大部分乡镇地闪密度均大于4次/km2,落雷密集区面积逐年增加,高密集区有向山区和东北部乡镇扩散的趋势。落雷的分布与地形有密切关系,西北部高海拔山区和海拔在50—200 m的低坡丘陵地带落雷密度较大。德清县莫干山至对河口水库一带、县城武康北部、洛舍和钟管镇交界一带及雷甸镇西南部均为雷电灾害高风险区。
이용근4 a덕청현지섬수거,채용망격법회제지섬밀도도,병대근40 a덕청뢰현폭일수거진행분석,동시대뢰격재해풍험진행구화연구。결과표명：20세기70—80년대덕청현뇌폭일교90년대화2000년이후편다;1971—2000년뇌폭일정하강추세,단2000년후뇌폭일수정상승추세;제12월이외매월균유뇌폭발생,7월화8월위뇌폭일고발기;춘하계뇌폭일교다,추계차지,동계교소발생뇌폭。뇌전주요출현재12—13시화15—16시。지2010년,덕청현대부분향진지섬밀도균대우4차/km2,락뢰밀집구면적축년증가,고밀집구유향산구화동북부향진확산적추세。락뢰적분포여지형유밀절관계,서북부고해발산구화해발재50—200 m적저파구릉지대락뢰밀도교대。덕청현막간산지대하구수고일대、현성무강북부、락사화종관진교계일대급뢰전진서남부균위뇌전재해고풍험구。
Based on the ground lightning data from 2007 to 2010,the density map of ground lightning was drawn by a grid method.The variation of thunderstorm days was analyzed based on the corresponding data in the recent 40 years and risk division of thunder stroke disaster was estimated.The results indicate that the thunderstorm days from 1970s to 1980s are more than those in 1990s and after 2000.The thunderstorm days are in a decreasing trend from 1971 to 2000,while it is in a increasing trend after 2000.There exists thunderstorm in each month except in December,especially in July and August.The thunderstorm occurs mostly in spring and summer,then in autumn,and it is seldom in winter.The thunder and lightning often happens from 12:00 to 13:00 and from 15:00 to 16:00.By 2010,the density of ground lightning is more than 4 times per square kilometer in most areas of Deqing County.The falling areas of dense thunderstorm increases yearly,the high-density area has a diffusion trend to mountain area and the northeast towns.The falling area of thunderstorm has a close relation with topography,and the high-density area is located in the northwest mountain area with the high altitude and in the low slope foothill with the altitude of 50-200 m.The high risk areas of thunder stroke disaster are from Moganshan to Duihekou regions of Deqing County,in the junction of the north of Wukang,Luoshe and Zhongguan and in the southwest of Leidian of Deqing County.