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Atmosphere-Ocean Volume 56, 2018 - Issue 4: Coastal-Ocean Issues and Inland Water Pollution Effects on Environmental Change / Les enjeux côte-océan et les incidences de la pollution des eaux intérieures sur les changements environnementaux
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Articles

A Spectral-Mixing Model for Estimating Sub-Pixel Coverage of Sea-Surface Floating Macroalgae

Lin LiInstitute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China;Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, People’s Republic of ChinaView further author information
,
Xiangyang ZhengYantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, People’s Republic of China;University of the Chinese Academy of Sciences, Beijing, People’s Republic of ChinaView further author information
,
Zhenning WeiYantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, People’s Republic of China;University of the Chinese Academy of Sciences, Beijing, People’s Republic of ChinaView further author information
,
Jinqiu ZouInstitute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of ChinaCorrespondence[email protected]
View further author information
&
Qianguo XingYantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, People’s Republic of China;University of the Chinese Academy of Sciences, Beijing, People’s Republic of ChinaCorrespondence[email protected]
View further author information
Pages 296-302 | Received 28 Sep 2016, Accepted 12 Jul 2018, Published online: 26 Oct 2018

Figures & data

Fig. 1 In situ measured reflectance of macroalgae (U. prolifera and S. horneri) and sea water.

Fig. 1 In situ measured reflectance of macroalgae (U. prolifera and S. horneri) and sea water.

Fig. 2 Linear mixing reflectance spectra of the sea surface and floating macroalgae for (a) U. prolifera and (b) S. horneri.

Fig. 2 Linear mixing reflectance spectra of the sea surface and floating macroalgae for (a) U. prolifera and (b) S. horneri.

Fig. 3 Changes in indices of VB-FAH, DVI, and NDVI normalized by their maxima versus increases in the portion of macroalgae (POM) for (a) U. prolifera and (b) S. horneri.

Fig. 3 Changes in indices of VB-FAH, DVI, and NDVI normalized by their maxima versus increases in the portion of macroalgae (POM) for (a) U. prolifera and (b) S. horneri.

Fig. 4 Indices for a high density of macroalgae (U. prolifera) for (a) VB-FAH, (b) DVI, and (c) NDVI.

Fig. 4 Indices for a high density of macroalgae (U. prolifera) for (a) VB-FAH, (b) DVI, and (c) NDVI.

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