摘要
为了研究水体及周边的雷电分布特征,利用30 m分辨力的Globe Land30(2020)数据和2010—2019年浙江省电力部门的闪电定位系统数据,分析地闪密度、地闪强度和水面率、与水体之间距离的相互关系。分析结果表明:与全省平均值相比,水体及周边1 km以内范围,地闪密度和强度都明显减少;水体周边1 km~4 km是地闪密度高值区;水体周边1 km以上范围,地闪强度会明显增大;地闪密度越大的地区,地闪分布越不均匀;水面率越大,地闪分布和强度分布越均匀;水体及周边的地闪密度变化特征与水体类型无关。
In order to study the distribution characteristics of lightning in water bodies and their surroundings,the relationship between ground flash density,ground flash intensity,water surface rate,and distance from water bodies was analyzed using Globe Land30(2020)data with a resolution of 30 meters and lightning location system data from the Zhejiang electric power department from 2010 to 2019.The analysis results show that compared with the provincial average,the density and intensity of ground flash within 1 km of water bodies and surrounding areas have significantly decreased.The area 1 km to 4 km around the water body is a high-value zone for ground flash density.Within a range of more than 1 km around the water body,the intensity of ground flash will significantly increase.The higher the density of ground flashes,the more uneven the distribution of ground flashes.The higher the water surface rate,the more uniform the distribution and intensity of ground flashes.The variation characteristics of ground flash density in water bodies and their surroundings are independent of the type of water body.
作者
赵伟
周娟
陈科技
Zhao Wei;Zhou Juan;Chen Keji(Zhejiang Institute of Meteorological Sciences,Hangzhou 310008;Hangzhou Meteorological Bureau,Hangzhou 310051;Electric Power Research Institute,State Grid Zhejiang Electric Power Company,Hangzhou 310016)
出处
《气象水文海洋仪器》
2025年第1期100-103,共4页
Meteorological,Hydrological and Marine Instruments
基金
浙江省气象科技计划项目(2021ZD17)资助。
关键词
水体
水面率
水体距离
地闪密度
地闪强度
water bodies
water surface rate
water distance
ground flash density
ground flash intensity
作者简介
赵伟(1983-),男,硕士,高级工程师。主要从事电网气象灾害风险评估及预警的研究工作。
