首页|期刊导航|中国海洋湖沼学报（英文版）|Estimation of total suspended matter in the Zhujiang (Pearl)River estuary from Hyperion imagery
中国海洋湖沼学报（英文版）2012，Vol.30Issue(1)：16-21,6.DOI:10.1007/s00343-012-0148-5
Estimation of total suspended matter in the Zhujiang (Pearl)River estuary from Hyperion imagery
Estimation of total suspended matter in the Zhujiang (Pearl)River estuary from Hyperion imagery
摘要
Abstract
Although remote sensing data have been used to estimate total suspended matter (TSM) in coastal waters,it has limitations when applied to estuary waters in low spatial resolution situations.The spatial resolution of ocean color satellites such as SeaWiFS and MODIS is usually ～1 km,and therefore is not adequate for small,local-scale areas such as the Zhujiang (Pearl) River estuary.In contrast,30 m-resolution EO-1 Hyperion imagery has potential for studying TSM in localized areas.We measured the surface spectral radiance reflectance of the river estuary water in the visible and near infra-red spectral range.Sensitivity analysis indicated that the ratio of remote sensing reflectance at 813 nm (Rrs(813)) to reflectance at 559 nm (Rrs(559)) could be used to estimate TSM concentration,and a linear relationship was established between the ratio and in-situ TSM concentration.We applied the linear relationship to Hyperion imagery to map TSM concentration in the estuary.The Hyperion imagery provided sufficient spatial resolution to detect spatiotemporal changes in TSM concentrations in the estuary small estuary area.This study demonstrated the usefulness of Hyperion imagery for mapping the distribution of TSM in estuary waters.关键词
Hyperion/total suspended matter (TSM)/Zhujiang (Pearl) River estuaryKey words
Hyperion/total suspended matter (TSM)/Zhujiang (Pearl) River estuary引用本文复制引用
LIU Dazhao,FU Dongyang,XU Bing,SHEN Chunyan..Estimation of total suspended matter in the Zhujiang (Pearl)River estuary from Hyperion imagery[J].中国海洋湖沼学报（英文版）,2012,30(1):16-21,6.基金项目
Supported by the National Natural Science Foundation of China (No.40976106),the Science Foundation Program of Guangdong Ocean University (No.1012339),and the Open Fund of State Key Laboratory of Satellite Ocean Environment Dynamics of Second Institute of Oceanography,SOA (No.SODE1203) （No.40976106）
