NDLI: Hyperspectral characteristics of seawater intrusion in Pearl River Delta, China based on laboratory experiments

Content Provider	IEEE Xplore Digital Library
Author	Yu Jiu Xiong Guo Yu Qiu Xiao Hong Chen Sheng Lin Tan Hai Xia Feng
Copyright Year	2012
Description	Author affiliation: Department of Water Resources and Environment, School of Geography and Planning, Sun Yat-Sen University, Guangzhou, Guangdong, 510275, China (Yu Jiu Xiong; Xiao Hong Chen; Sheng Lin Tan) \|\| Key Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, Guangdong, 518055, China (Guo Yu Qiu) \|\| Shandong Jiaotong University, Jinan, 250357, China (Hai Xia Feng)
Abstract	In recent years, the Pearl River Delta (PRD) of China experienced serious saline water intrusion in the dry season, leading to water supply crisis. A challenging issue in water supply management is that there is not enough saline water intrusion information for decision making due to limited site-monitoring. Therefore, the objectives of this study is to investigate the spectral characteristics of seawater with different chlorosity, the most fundamental step in remote sensing application. Experiments in laboratory were performed to obtain spectral characteristics of saline water by spectroradiometer. The primary results show that, 1) reflectance of seawater was small between 400 and 850 nm, ranging from 0.01 to 0.14; 2) reflectance spectra of seawater was unique because spectral curves changed slightly in the ranges of 400–700 nm and 850–930 nm, but fluctuated observably in 700–850 nm, i.e., suddenly declined from 700 to 750 nm and then formed a narrow peak (750–770 nm) and a wide peak (770–850 nm); and 3) spectral reflectance increased with the increasing of chlorosity.
Starting Page	4825
Ending Page	4828
File Size	156858
Page Count	4
File Format	PDF
ISBN	9781467311601
ISSN	21536996
e-ISBN	9781467311595
e-ISBN	9781467311588
DOI	10.1109/IGARSS.2012.6352533
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reflectivity Rivers Remote sensing Laboratories Educational institutions Water resources Spectroradiometers Pearl River Delta Optical remote sensing hyperspectral characteristics seawater intrusion
Content Type	Text
Resource Type	Article

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