摘要
雷电热效应的强度及其影响范围和持续时间(时空尺度),是雷电的重要特征参数,在雷电致灾、雷电防护、雷电化学等应用领域有着重要作用。由于闪电发生时间和地点的随机性,加之强大的回击电流,故难以做到对闪电通道温度的直接测量,只能采用遥感技术。通过概述国内外雷电流热效应测量的光谱技术,分析利用地基微波辐射计开展雷电流热效应微波遥感所面对的问题,以便了解雷电流热效应的观测研究现状,促进开展雷电流热效应的微波遥感观测研究。
The intensity of lightning thermal effect and its influence scope and duration （ temperature, time and space scales）, are not only the important characteristic parameters for lightning itself, but also the important factors in lightning disaster, lightning protection, lightning ehemistry and other fields of applications. Due to the random feature of lightning occurrence time and place, coupled with a strong return stroke current, it is hard to make direct measurement of the temperature in lightning channel. Therefore, remote sensing technology is the only method at present to be adopted. This article summarized the present status of the methods and techniques based on visible and near-infrared spectra analysis applied for lightning channel thermal effect observations both at home and abroad, and provided a description of using a ground-based, muhichannel microwave radiometer for this purpose.
作者
李青
雷连发
王振会
魏鸣
李东帅
Li Qing Lei Lianfa Wang Zhenhui Wei Ming Li Dongshuai(Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, CMA Key Laboratory for Aerosol-Cloud-Precipitation ,Nanjing University of Information Science ＆ Technology ,Nanjing 210044, China School of Atmospheric Physics, Nanjing University of Information Science ＆ Technology 210044, China Xi ＇ an Institute for Electronic Engineering, Xi ＇ an 710100, China)
出处
《地球科学进展》
CAS
CSCD
北大核心
2017年第5期481-487,共7页
Advances in Earth Science
基金
国家自然科学基金项目"雷电热效应的微波遥感理论与实验观测研究"(编号:41675028)
江苏高校优势学科建设工程资助项目(PAPD)资助~~
关键词
雷电流热效应
光谱测量技术
微波遥感
Lightning thermal effect
Visible and infrared spectral measurement technology
Remote sensing.
