Estimating chlorophyll a concentration in lake water using space-borne hyperspectral data

Author

Li, Li ; Yin, Qiu ; Xu, Hua ; Gong, Cailan ; Chen, Zhenghua

Author_Institution

Inst. of Remote Sensing Applic., Chinese Acad. of Sci., Beijing, China

fYear

2010

fDate

25-30 July 2010

Firstpage

401

Lastpage

404

Abstract

Chlorophyll fluorescence properties are effective in detecting chlorophyll a concentration in lake water, which provided new optional sensitive bands to retrieval chl-a concentration in complex water. Hyper Spectral Imager (HSI) on HJ-1A satellite with great spectral resolution can be used to detect spectral characteristics of chlorophyll fluorescence peak. The effects of empirical algorithms of lake Taihu and the algorithm based on height of fluorescence peak are analyzed by using MODIS data and HSI data respectively. The results show that compared with empirical MODIS algorithms of lake Taihu, chl-a retrieval based on HSI is more similar to the in-situ reference data.

Keywords

hydrological techniques; lakes; organic compounds; remote sensing; water quality; China; HJ-1A satellite; HSI data; Hyperspectral Imager; MODIS data; Taihu lake; chlorophyll a concentration estimation; chlorophyll fluorescence properties; lake water; space borne hyperspectral data; Fluorescence; Hyperspectral imaging; Lakes; MODIS; Reflectivity; Water; Image analysis; Remote sensing; Satellite application; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International

Conference_Location

Honolulu, HI

ISSN

2153-6996

Print_ISBN

978-1-4244-9565-8

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2010.5654478

Filename

5654478