| An Improved Method for Mapping Tidal Flats Based on Remote Sensing Waterlines: A Case Study in the Bohai Rim, China | |
Liu, Xiangyang; Gao, Zhiqiang ; Ning, Jicai; Yu, Xiang; Zhang, Yuanyuan; 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
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| Source Publication | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
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| ISSN | 1939-1404 |
| 2016-11-01 | |
| Volume | 9Issue:11Pages:5123-5129 |
| Keyword | Digital Shoreline Analysis System (Dsas) Hj Image Jenks Natural Breaks Tidal Flat Waterline Zones |
| DOI | 10.1109/JSTARS.2016.2616514 |
| Contribution Rank | [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 |
| Department | 海岸带信息集成与综合管理实验室 |
| Abstract | 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. |
| Subtype | Article |
| Funding Organization | Strategic Priority Research Program of the Chinese Academy of Sciences(XDA11020000) ; Key Research Program of the Chinese Academy of Sciences(KZZD-EW-14) ; Basic Special Program of Ministry of Science and Technology(2014FY210600) ; Talent Fund of Yantai Institute of Coastal Zone Research, Science, and Technology Project of Yantai(2014ZH085) |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | MULTITEMPORAL SATELLITE IMAGES ; SHORELINE CHANGES ; ECOSYSTEMS ; COASTLINE ; FEATURES ; WETLANDS ; DELTA ; SEA |
| WOS Research Area | Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS ID | WOS:000388871500023 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.yic.ac.cn/handle/133337/19262 |
| Collection | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心 |
| Corresponding Author | 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 |
| Affiliation | Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| Recommended Citation 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,&Gao, ZQ .(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. |
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| An Improved Method f（456KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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