基于多光谱遥感影像浅海水深反演研究  

Study of Water Depth Inversion for Shallow Sea Based on Multispectral Remote Sensing Images

作　　者：廖旋芝 邱骞 秦用丰 LIAO Xuanzhi;QIU Qian;QIN Yongfeng(College of Electronics and Information Engineering,Beibu Gulf University,Qinzhou,Guangxi Zhuang Autonomous Region,535011 China;Primary Education School,Guangxi College for Preschool Education,Nanning,Guangxi Zhuang Autonomous Region,530022 China)

机构地区：[1]北部湾大学电子与信息工程学院,广西钦州535011 [2]广西幼儿师范高等专科学校初等教育学院,广西南宁530022

出　　处：《科技资讯》2025年第2期176-179,共4页Science & Technology Information

基　　金：2023年度广西高校中青年教师科研基础能力提升项目(项目编号:2023KY0439);2022年度广西职业教育教学改革研究重点项目(项目编号:GXGZJG2022A001)。

摘　　要：获取浅海水深数据对浅海区域的研究具有重要意义。相较于传统的船只声呐和机载雷达,多光谱卫星遥感影像具备成本低、范围大、更新频率高等优点。以中国台湾省新竹市南寮渔港水深反演为例,选择IKONOS高分辨率多光谱影像为数据源,在经过辐射定标、大气校正、几何校正、耀斑消除和水陆分割的预处理后,基于水深遥感探测理论构建单波段、双波段比值和多波段组合水深反演模型,最后对反演水深与海图水深采用回归分析,对结果进行评价。结果表明,蓝绿双波段比值模型和蓝绿红多波段模型的反演效果均不错,R2都在0.997以上。此方法通过海水光学特性,可以从多光谱卫星影像中快速获取浅水海域水深信息,供相关海洋领域分析与应用。Obtaining shallow sea water depth data is critical to the research of shallow sea areas.Compared to traditional ship sonar and airborne radar,multispectral satellite remote sensing imagery offers the advantages of low cost,large range,and high update frequency.In this article,the water depth inversion of Nanliao Fishing Harbor in Hsinchu City,Taiwan Province of China was taken as the research object,and IKONOS high-resolution multispectral images were selected as the data source.After pre-processing of the radiometric calibration,atmospheric correction,geometrical correction,flare elimination,land and water segmentation,we constructed single-band,dual-band ratio,and multi-wavelength combinations of water depth inversion model based on the theory of water depth remote sensing detection.Finally,this work adopted the regression analysis for the inversion water depth and chart water depth,and the results were evaluated.The results showed that the blue-green dual-band ratio model and blue-green-red multi-band model inversion demonstrated the best results,with R2 above 0.997.This method could quickly obtain the preliminary water depth information of shallow waters from multispectral satellite images through the optical properties of seawater for analysis and application in related marine fields.

关 键 词：水深反演 反演模型 多光谱卫星影像 浅海水深 

分 类 号：TP753[自动化与计算机技术—检测技术与自动化装置] TP391.7[自动化与计算机技术—控制科学与工程]