An Improved Method for Mapping Tidal Flats Based on Remote Sensing Waterlines: A Case Study in the Bohai Rim, China
文献类型：期刊论文
| 作者 | Liu, Xiangyang; Gao, Zhiqiang ; Ning, Jicai; Yu, Xiang; Zhang, Yuanyuan
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| 刊名 | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
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| 出版日期 | 2016-11-01 |
| 卷号 | 9期号:11页码:5123-5129 |
| 关键词 | Digital Shoreline Analysis System (DSAS) HJ image Jenks Natural Breaks tidal flat waterline zones |
| ISSN号 | 1939-1404 |
| 产权排序 | [Liu, Xiangyang; Gao, Zhiqiang; Ning, Jicai; Yu, Xiang; Zhang, Yuanyuan] Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 通讯作者 | Gao, ZQ (reprint author), Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China. xyliu_gis@yeah.net |
| 英文摘要 | Tidal flats form boundaries between marine and terrestrial environments, and reported rapid decreases in their extent require improved measures of their status. Current methods for delineating tidal flats have low accuracy because of the limited precision of available imagery, and they cannot identify zones within tidal flats. Three zones within tidal flats are ecologically distinct due to their varied inundation. These include the supratidal, intertidal, and subtidal zones. In this study, we present a more precise method for mapping tidal flats. We used Chinese HJ-1A/B satellite images with a semiautomatic extraction method to generate a sufficient number of waterline estimates taken at various tide heights to delineate the full extent of tidal flats. Then, the full set of waterline estimates is analyzed with the Digital Shoreline Analysis System (DSAS) using Jenks Natural Breaks to identify three zones within tidal flats. We demonstrated the utility of this approach by mapping tidal flats of the Bohai Rim, China. In 2014, the estimate of available tidal flats in the region was 3093 km(2), among which the area of supratidal, intertidal, and subtidal zones accounted for 5.0%, 84.3%, and 10.7%, respectively. A confusion matrix for accuracy assessment revealed a 93.8% overall accuracy for the resulting tidal flat map. Our method enables tidal flats to be mapped and monitored precisely and comprehensively, providing baseline data on the extent of this disappearing ecosystem that can be used to inform coastal planning and sustainable development. |
| 研究领域[WOS] | Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology |
| 关键词[WOS] | MULTITEMPORAL SATELLITE IMAGES ; SHORELINE CHANGES ; ECOSYSTEMS ; COASTLINE ; FEATURES ; WETLANDS ; DELTA ; SEA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000388871500023 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/19262]  |
| 专题 | 烟台海岸带研究所_海岸带信息集成与综合管理实验室 |
| 作者单位 | Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiangyang,Gao, Zhiqiang,Ning, Jicai,et al. An Improved Method for Mapping Tidal Flats Based on Remote Sensing Waterlines: A Case Study in the Bohai Rim, China[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2016,9(11):5123-5129. |
| APA | Liu, Xiangyang,Gao, Zhiqiang,Ning, Jicai,Yu, Xiang,&Zhang, Yuanyuan.(2016).An Improved Method for Mapping Tidal Flats Based on Remote Sensing Waterlines: A Case Study in the Bohai Rim, China.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,9(11),5123-5129. |
| MLA | Liu, Xiangyang,et al."An Improved Method for Mapping Tidal Flats Based on Remote Sensing Waterlines: A Case Study in the Bohai Rim, China".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 9.11(2016):5123-5129. |
入库方式： OAI收割
来源：烟台海岸带研究所
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