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Proceedings Paper

Dynamic change and quantitative analysis of Zhelin Bay based on multi-source spatial data
Author(s): Dandan Zhang; Xiaomei Yang; Xiaoyu Sun; Jianming Gong; Yong Liu
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Paper Abstract

As one of the most important aquatic products raising bases of Guangdong province in China, Zhelin Bay has experienced high intensity of exploitation and utilization during the recent decades. This paper aims at the dynamic change of Zhelin Bay, multi-source data of digital land use map, topographical map, and geomorphological map of the National Coastal Survey of china in 1980s, Landsat TM satellite imagery obtained in 2000, land use data in 2000, as well as SPOT imagery and land use data from the newly National 908 Remote Sensing Survey were used. The data were preprocessed in a uniform mathematical foundation at first. Water area rate, open degree, and morphology coefficient which can depict the change of bays in different respect were taken as quantitative indicators to analyze the morphological changes of Zhelin Bay. The classification based on these indicators was then made in each period of time. Finally, the comprehensive spatio-temporal change of the bay was evaluated in a Changing Index model. Analysis results show that, during the latest 20 years, the water area rate has changed evidently from 0.8503 to 0.7410, leading to the category of Zhelin Bay changed from entire-water bay to much-water bay. Besides, the Changing Index of Zhelin Bay during the latest 20 years is 0.44%. Reasons for the change were discussed and some suggestions were given in the end of the paper.

Paper Details

Date Published: 5 November 2008
PDF: 9 pages
Proc. SPIE 7144, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics, 71441B (5 November 2008); doi: 10.1117/12.812742
Show Author Affiliations
Dandan Zhang, Institute of Geographical Sciences and Natural Resources Research (China)
Graduate School of the Chinese Academy of Sciences (China)
Xiaomei Yang, Institute of Geographical Sciences and Natural Resources Research (China)
Xiaoyu Sun, Institute of Geographical Sciences and Natural Resources Research (China)
Graduate School of the Chinese Academy of Sciences (China)
Jianming Gong, Institute of Geographical Sciences and Natural Resources Research (China)
Wuhan Univ. (China)
Yong Liu, Institute of Geographical Sciences and Natural Resources Research (China)


Published in SPIE Proceedings Vol. 7144:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang; Xinhao Wang, Editor(s)

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