长江科学院院报2017，Vol.34Issue(11)：132-137,147,7.DOI:10.11988/ckyyb.20160728
基于实测数据的鄱阳湖悬浮泥沙粒度遥感反演模式分析
Models of Remote Sensing Retrieval of Suspended Sediment Particle Size in the Poyang Lake Based on Measured Spectral Reflectance Data
摘要
Abstract
Particle size of suspended sediment,as an important parameter reflecting water quality,has an influence on the spectral reflectance of water.Study of the relationship between particle size and reflectance is of great significance to water environment monitoring in inland lakes.In this paper,the suspended sediment particle size of the Poyang Lake was retrieved using different mathematical models based on correlation analysis according to measured spectral reflectance data.Results show that:1) volume percentage median diameter is suitable for the retrieval model for turbid area;while quantity percentage median diameter is suitable for clear water;2) in turbid area,single band Ⅳ is the sensitive wave band;whereas in clear water,single band lⅡ and single band Ⅲ are sensitive wave bands.In addition,the reflectance ratio of band Ⅱ to band Ⅲ is the sensitive wave band in the whole study area;3) in the retrieval model of single band reflectance,power function is suitable for the retrieval of suspended sediment particle size in the Poyang lake;while in the model of band reflectance ratio,polynomial model is the most suitable.关键词
鄱阳湖/悬浮泥沙粒度/遥感反射率/定量反演/敏感波段Key words
Poyang Lake/particle size of suspended sediment/remote sensing reflectance ratio/quantitative inversion/sensitive wave band分类
信息技术与安全科学引用本文复制引用
况润元,谢佳,张萌,李文红,张刚华..基于实测数据的鄱阳湖悬浮泥沙粒度遥感反演模式分析[J].长江科学院院报,2017,34(11):132-137,147,7.基金项目
国家自然科学基金项目(41101322) （41101322）
江西省自然科学基金项目(20114BAB213022) （20114BAB213022）
江西省教育厅科技项目(GJJ160617) （GJJ160617）
