摘要
文章利用1998年01月~2014年12月星载闪电成像传感器(LIS)探测原始资料,分析华东地区陆地及附近海域的闪电时空分布特征。结果表明:华东地区(含海洋)陆地闪电密度高于海洋;闪电活动具有明显的季节性和日变化特征;海洋的光辐射能和闪电持续均高于陆地,光辐射能和闪电持续时间均呈现随纬度升高而降低的趋势;光辐射能强度夏季最低,冬季为全年最高,这一特征陆地比海洋更为明显。
By virtue of the detection data collected by the satellite-borne lightning imaging sensor（LIS）from January 1998 to December 2014,the lighting activity features in eastern China and its nearby sea are analyzed.The results show that the lightning density in eastern China（including ocean areas）is higher than ocean.The lightning activity has obvious seasonal and diurnal characteristics.The ocean＇s optical radiant energy and lightning are consistently higher than the land.Both the optical radiant energy and the lightning duration show a decreasing trend with the increase of latitude.The intensity of light radiant energy is the lowest in summer and the highest in winter,which is more obvious than that of the ocean.
出处
《气象水文海洋仪器》
2017年第4期114-120,共7页
Meteorological,Hydrological and Marine Instruments
基金
山东省气象局面上课题(2014sdqxm08)
关键词
LIS
陆地及海洋
雷电活动
时空分布
LIS
land and ocean
lighting activities
spatial and temporal distribution
