Study on the extraction method of tidal flat area in northern Jiangsu Province based on remote sensing waterlines

Yuanyuan Zhang; Zhiqiang Gao; Xiangyang Liu; Ning Xu; Chaoshun Liu; Wei Gao

doi:10.1117/12.2235838

19 September 2016 Study on the extraction method of tidal flat area in northern Jiangsu Province based on remote sensing waterlines

Yuanyuan Zhang, Zhiqiang Gao, Xiangyang Liu, Ning Xu, Chaoshun Liu, Wei Gao

Author Affiliations +

Proceedings Volume 9975, Remote Sensing and Modeling of Ecosystems for Sustainability XIII; 99750M (2016) https://doi.org/10.1117/12.2235838
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

Reclamation caused a significant dynamic change in the coastal zone, the tidal flat zone is an unstable reserve land resource, it has important significance for its research. In order to realize the efficient extraction of the tidal flat area information, this paper takes Rudong County in Jiangsu Province as the research area, using the HJ1A/1B images as the data source, on the basis of previous research experience and literature review, the paper chooses the method of object-oriented classification as a semi-automatic extraction method to generate waterlines. Then waterlines are analyzed by DSAS software to obtain tide points, automatic extraction of outer boundary points are followed under the use of Python to determine the extent of tidal flats in 2014 of Rudong County, the extraction area was 55182hm², the confusion matrix is used to verify the accuracy and the result shows that the kappa coefficient is 0.945. The method could improve deficiencies of previous studies and its available free nature on the Internet makes a generalization.

Citation Download Citation

Yuanyuan Zhang, Zhiqiang Gao, Xiangyang Liu, Ning Xu, Chaoshun Liu, and Wei Gao "Study on the extraction method of tidal flat area in northern Jiangsu Province based on remote sensing waterlines", Proc. SPIE 9975, Remote Sensing and Modeling of Ecosystems for Sustainability XIII, 99750M (19 September 2016); https://doi.org/10.1117/12.2235838

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