气候变化领域集成服务门户(CCPortal): Tracking the 2D/3D Morphological Changes of Tidal Flats Using Time Series Remote Sensing Data in Northern China

CCPortal

DOI	10.3390/rs16050886
	Tracking the 2D/3D Morphological Changes of Tidal Flats Using Time Series Remote Sensing Data in Northern China
	Gan, Zhiquan; Guo, Shurong; Chen, Chunpeng; Zheng, Hanjie; Hu, Yuekai; Su, Hua; Wu, Wenting
发表日期	2024
EISSN	2072-4292
起始页码	16
结束页码	5
卷号	16 期号:5
英文摘要	Tidal flats in northern China are essential parts of the East Asian-Australasian Flyway, the densest pathway for migratory waterbirds, and are of great ecological and economic importance. They are threatened by human activities and climate change, raising the urgency surrounding tracking the spatiotemporal dynamics of tidal flats. However, there is no cost-effective way to map morphological changes on a large spatial scale due to the inaccessibility of the mudflats. In this study, we proposed a pixel-based multi-indices tidal flat mapping algorithm that precisely characterizes 2D/3D morphological changes in tidal flats in northern China using time-series remote sensing data. An overall accuracy of 0.95 in delineating tidal flats to a 2D extent was achieved, with 11,716 verification points. Our results demonstrate that the reduction in sediment discharge from rivers along the coastlines of the Yellow and Bohai Seas has resulted in an overall decline in the area of tidal flats, from 4856.40 km2 to 4778.32 km2. Specifically, 3D analysis showed that significant losses were observed in the mid-to-high-tidal flat zones, while low-elevation tidal flats experienced an increase in area due to the transformations in mid-to-high-tidal flats. Our results indicate that the sediment inputs from rivers and the succession of native vegetation are the primary drivers leading to 2D/3D morphological changes of tidal flats following the cessation of extensive land reclamation in northern China.
英文关键词	tidal flats; 2D/3D morphological changes; remote sensing; time series; Yellow and Bohai Seas
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001183083500001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288963
作者单位	Fuzhou University; East China Normal University; Lancaster University
推荐引用方式 GB/T 7714	Gan, Zhiquan,Guo, Shurong,Chen, Chunpeng,et al. Tracking the 2D/3D Morphological Changes of Tidal Flats Using Time Series Remote Sensing Data in Northern China[J],2024,16(5).
APA	Gan, Zhiquan.,Guo, Shurong.,Chen, Chunpeng.,Zheng, Hanjie.,Hu, Yuekai.,...&Wu, Wenting.(2024).Tracking the 2D/3D Morphological Changes of Tidal Flats Using Time Series Remote Sensing Data in Northern China.REMOTE SENSING,16(5).
MLA	Gan, Zhiquan,et al."Tracking the 2D/3D Morphological Changes of Tidal Flats Using Time Series Remote Sensing Data in Northern China".REMOTE SENSING 16.5(2024).