热带气象学报2011，Vol.27Issue(2)：152-160,9.DOI:10.3969/j.issn.1004-4965.2011.02.002
气象卫星大雾遥感自动识别技术研究
RESEARCH ON AUTOMATIC FOG IDENTIFICATION TECHNOLOGY BY METEOROLOGICAL SATELLITE REMOTE SENSING
摘要
Abstract
There is an urgent need for the development of a method that can undertake rapid, effective, and accurate monitoring and identification of fog by satellite remote sensing, since heavy fog can cause enormous disasters to China's national economy and people's lives and property in the urban and coastal areas. In this paper, the correlative relationship between the reflectivity of land surface and clouds in different time phases is found, based on the analysis of the radiative and satellite-based spectral characteristics of fog. Through calculation and analyses of the relative variability of the reflectivity in the images, the threshold to identify quasi-fog areas is generated automatically. Furthermore, using the technique of quick image run-length encoding, and in combination with such practical methods as analyzing texture and shape fractures,smoothness, and template characteristics, the automatic identification of fog and fog-cloud separation using meteorological satellite remote sensing images are studied, with good results in application.关键词
气象卫星/雾/遥感动态监测/自动快速识别方法Key words
meteorological satellites/ fog/ dynamic remote sensing monitoring/ rapid and automatic identification methods分类
天文与地球科学引用本文复制引用
周红妹,葛伟强,柏桦,刘冬韡,杨引明..气象卫星大雾遥感自动识别技术研究[J].热带气象学报,2011,27(2):152-160,9.基金项目
上海市科委重点课题"上海城市和沿海大雾遥感监测预警系统研究"(NO.075115011)资助 （NO.075115011）
