高电压技术
高電壓技術
고전압기술
HIGH VOLTAGE ENGINEERING
2012年
10期
2742-2748
,共7页
余海军%陈水明%朱建军%岑杰军
餘海軍%陳水明%硃建軍%岑傑軍
여해군%진수명%주건군%잠걸군
雷电日%地闪密度%圆面积法%雷电定位系统(LLS)%雷电活动%时空分布
雷電日%地閃密度%圓麵積法%雷電定位繫統(LLS)%雷電活動%時空分佈
뇌전일%지섬밀도%원면적법%뇌전정위계통(LLS)%뇌전활동%시공분포
thunderstorm days%ground flash density%circle area method%lightning location system(LLS)%lightning activity%spatial and temporal distributions
为了更好地应用雷电定位系统（lightning location system,LLS）监测雷电参数,对雷电定位系统监测数据与人工雷电日进行了对比分析。利用圆面积法,以气象观测站为中心,分别取半径r=5,6,7,8km的圆区域,统计分析雷电定位系统在该面积区域的雷电日,并与广东省气象局地面观测站人工监测的雷电日进行对比统计,对比分析了人工雷电日与雷电定位数据的差异性,找出了2者的相关性。统计分析表明,雷电定位系统监测的雷电日,在不同的面积区域相差很大,在r=7km圆区域的雷电日数据能较好地接近人工雷电日,尤其是在多年统计中,接近程度更高;利用r=7km圆区域的LLS雷电日得出雷电日Td与地闪密度Ng的经验公式为Ng=0.004Td1.802。
為瞭更好地應用雷電定位繫統（lightning location system,LLS）鑑測雷電參數,對雷電定位繫統鑑測數據與人工雷電日進行瞭對比分析。利用圓麵積法,以氣象觀測站為中心,分彆取半徑r=5,6,7,8km的圓區域,統計分析雷電定位繫統在該麵積區域的雷電日,併與廣東省氣象跼地麵觀測站人工鑑測的雷電日進行對比統計,對比分析瞭人工雷電日與雷電定位數據的差異性,找齣瞭2者的相關性。統計分析錶明,雷電定位繫統鑑測的雷電日,在不同的麵積區域相差很大,在r=7km圓區域的雷電日數據能較好地接近人工雷電日,尤其是在多年統計中,接近程度更高;利用r=7km圓區域的LLS雷電日得齣雷電日Td與地閃密度Ng的經驗公式為Ng=0.004Td1.802。
위료경호지응용뇌전정위계통（lightning location system,LLS）감측뇌전삼수,대뇌전정위계통감측수거여인공뇌전일진행료대비분석。이용원면적법,이기상관측참위중심,분별취반경r=5,6,7,8km적원구역,통계분석뇌전정위계통재해면적구역적뇌전일,병여광동성기상국지면관측참인공감측적뇌전일진행대비통계,대비분석료인공뇌전일여뇌전정위수거적차이성,조출료2자적상관성。통계분석표명,뇌전정위계통감측적뇌전일,재불동적면적구역상차흔대,재r=7km원구역적뇌전일수거능교호지접근인공뇌전일,우기시재다년통계중,접근정도경고;이용r=7km원구역적LLS뇌전일득출뇌전일Td여지섬밀도Ng적경험공식위Ng=0.004Td1.802。
In order to better apply lightning parameters monitored by lightning location system,we compared and analyzed monitoring data on lightning location system and artificial thunderstorm days.Using the circular area method,we set meteorological observation station as the center,and took the radius r=5,6,7,8 km circular region,respectively,in order to obtain statistical analysis of lightning day in these areas of regions on lightning location system.Meanwhile,through comparing these data with lightning days monitored by weather station of Guangdong Meteorological Bureau,we analyzed the differences of artificial thunderstorm days and lightning location system data to identify correlation.Statistical analysis shows that thunderstorm days monitored by lightning location system vary widely in different areas of regions,while the data of thunderstorm days in the region r=7 km round are close to artificial thunderstorm days.Especially in years of statistics,close degree is higher.We obtained an empirical formula of thunderstorm days and ground flash density through LLS thunderstorm days in r=7 km circular region,that is Ng=0.004Td1.802.
