基于一次机场雷击事件评估ADTD地闪定位性能  

Evaluation of ADTD Cloud-to-Ground Flash Location Performance Based on an Airport Lightning Event

作　　者：包坤 赖晋科 李庆申 庞文静[3] BAO Kun;LAI Jinke;LI Qingshen;PANG Wenjing(Beijing Huayun Orient Dection Technology Co.,Ltd.,Beijing 100081;Huayun Sounding(Beijing)Meteorological Technology Co.,Ltd,Beijing 102299;Meteorological Observation Center,China Meteorological Administration,Beijing 100081)

机构地区：[1]北京华云东方探测技术有限公司,北京100081 [2]华云升达(北京)气象科技有限责任公司,北京102299 [3]中国气象局气象探测中心,北京100081

出　　处：《气象科技》2020年第4期459-464,共6页Meteorological Science and Technology

摘　　要：地闪定位系统性能评估可通过理论模拟,也可以基于人工触发闪电或者自然闪电直接观测事实。自然闪电由于发生的随机性和瞬时性,其直接观测事实很少,因此至今基于真实自然闪电回击的地闪定位系统性能评估还很欠缺。本研究基于2016年5月30日发生在广东潮汕机场的雷击事件展开调查,通过本次位置明确的机场雷击事件评估了该区域的ADTD地闪定位性能,并计算了不同站数定位时的定位误差情况。结果表明,ADTD闪电定位系统实时准确地记录了潮汕机场雷击事件,表明其实用性和准确性。通过重定位计算,发现在多站定位时可去除较大误差的站,保证定位结果的准确性,但定位结果并不一定是最优结果。The performance evaluation of the ground lightning location system can be achieved by theoretical simulation,and also by direct observations based on the facts of artificially triggered lightning or natural lightning.Due to the randomness and instantaneity of the occurrence of natural lightning,there are few direct observation facts.So far,the performance evaluation of the cloud-to-ground lightning location system based on the real return strokes of lightning happened naturally is still lacking.This study is based on the investigation of the lightning incident at Chaoshan Airport in Guangdong Province on 30 May 2016.The study evaluates the location performance of the ADTD cloud-to-ground lightning in the area,and at the same time calculates the location errors of different stations through the airport lightning incident with clear location.The results show that the ADTD lightning location system can accurately record the lightning events of Chaoshan Airport in real time,which shows its practicability and accuracy.Through the relocation calculation,it is found that the stations with larger errors can be removed in the multi-station location,which can ensure the increased accuracy of location results,but the location results mentioned above may not be optimal.

关 键 词：ADTD闪电定位系统 雷击 地闪 定位精度 评估 

分 类 号：P413[天文地球—大气科学及气象学]