近岸及内陆二类水体漫衰减系数的遥感反演研究进展  

The Research on The Progress of Remote Sensing Inversion Diffuse Attenuation Coefficient of Near and Inland Waters

作　　者：王积峰 况润元[1] 袁爽[1] WANG Ji-feng;KUANG Run-yuan;YUAN Shuang(School of Architectural and Surveying and Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou Guangdong 341000,China)

机构地区：[1]江西理工大学建筑与测绘工程学院,江西赣州341000

出　　处：《现代测绘》2018年第5期7-11,共5页Modern Surveying and Mapping

基　　金：国家自然科学基金项目(41101322);江西省教育厅科学技术研究项目(GJJ160617)

摘　　要：漫衰减系数作为水体表观光学的一个重要参数,是水下光场结构和光强的直观反映,其反演算法被应用于大面积水域的水下光场和组分变化的研究。本文首先介绍漫衰减系数反演算法基本原理,传统测量方法和现代反演算法,分析近十年国内外研究成果和存在的问题,提出今后漫衰减系数遥感反演算法的发展方向。研究结果表明:传统测量方法在适用范围和精度上都不能满足当今需求,而现代反演算法不仅弥补了传统测量方法的不足,且具有较好的普适性和更广泛的应用领域。其反演算法主要有两种:经验法和半解析法。优点是经验法偏重于特定区域,反演精度高;半解析法具有一定的普适性,引入模型参数多。缺点是经验法受实测数据影响较大,半解析法受物理模型限制。今后应加强对大气纠正和物理模型的研究,拓展其适用性。研究成果有助于研究者更为全面的了解漫衰减系数反演算法,为水色遥感研究提供理论和实践参考。Diffuse attenuation coefficient is an important parameter of water apparent optics,which can directly reflect the underwater light field structure and light intensity and the corresponding remote sensing inversion model could be opplied on the research on the large waters of underwater light field and the change of water components,thus the paper summarizes the inversion algorithm models of remote sensing diffuses attenuation coefficient,which is necessary for the theory and practice to provide a perfect platform for future water color remote sensing research.This article firstly introduces the traditional measurement methods of diffuse attenuation coefficient,then lists the research status of scholars home and abroad nearly ten years,and finally draws to the conclusion that there are mainly two kinds of remote sensing inversion algorithms of diffuse attenuation coefficient :(1) Establishing the relationship between remote sensing reflectance and diffuse attenuation coefficient model directly,or the introduction of chlorophyll A concentration as a experiences method of intermediate parameter;(2)The inversion model of semi-analytical method, which combines with intrinsic optical parameter and based on the radiation transmission model.There is a focus on both above,the empirical method focuses on the specific region and has a high accuracy on the inversion,but the measured data has a great influence on the accuracy.Semi-analytical method has a certain universality,but more model parameters are introduced.

关 键 词：漫衰减系数 遥感反射率 经验法 半解析法 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]