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Remote Sensing
Volume 14
Issue 2
10.3390/rs14020310
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Article

Quantitative Analysis on Coastline Changes of Yangtze River Delta Based on High Spatial Resolution Remote Sensing Images

by
Qi Wu
1,
Shiqi Miao
1,
Haili Huang
1,
Mao Guo
1,
Lei Zhang
1,
Lin Yang
1,* and
Chenghu Zhou
1,2
1
School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
2
State Key Laboratory of Resources and Environmental Information System, Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing 100101, China
*
Author to whom correspondence should be addressed.
Remote Sens. 2022, 14(2), 310; https://doi.org/10.3390/rs14020310
Submission received: 30 September 2021 / Revised: 6 January 2022 / Accepted: 7 January 2022 / Published: 11 January 2022
(This article belongs to the Special Issue Remote Sensing Application in Coastal Geomorphology and Processes)
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Abstract

The coastline situation reflects socioeconomic development and ecological environment in coastal zones. Analyzing coastline changes clarifies the current coastline situation and provides a scientific basis for making environmental protection policies, especially for coastlines with significant human interference. As human activities become more intense, coastline types and their dynamic changes become more complicated, which needs more detailed identification of coastlines. High spatial resolution images can help provide detailed large spatial coverage at high resolution information on coastal zones. This study aims to map the position and status of the Yangtze River Delta (YRD) coastline using an NDWI threshold method based on 2 m Gaofen-1/Ziyuan-3 imagery and analyze coastline change and coastline type distribution characteristics. The results showed that natural and artificial coastlines in the YRD region accounted for 42.73% and 57.27% in 2013 and 41.56% and 58.44% in 2018, respectively. The coastline generally advanced towards the sea, causing a land area increase of 475.62 km2. The changes in the YRD coastline mainly resulted from a combination of large-scale artificial construction and natural factors such as silt deposition. This study provides a reference source for large spatial coverage at high resolution remote sensing coastline monitoring and a better understanding of land use in coastal zone.
Keywords: Yangtze River Delta; coastline changing; remote sensing; NDWI; GF1; ZY-3 Yangtze River Delta; coastline changing; remote sensing; NDWI; GF1; ZY-3

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MDPI and ACS Style

Wu, Q.; Miao, S.; Huang, H.; Guo, M.; Zhang, L.; Yang, L.; Zhou, C. Quantitative Analysis on Coastline Changes of Yangtze River Delta Based on High Spatial Resolution Remote Sensing Images. Remote Sens. 2022, 14, 310. https://doi.org/10.3390/rs14020310

AMA Style

Wu Q, Miao S, Huang H, Guo M, Zhang L, Yang L, Zhou C. Quantitative Analysis on Coastline Changes of Yangtze River Delta Based on High Spatial Resolution Remote Sensing Images. Remote Sensing. 2022; 14(2):310. https://doi.org/10.3390/rs14020310

Chicago/Turabian Style

Wu, Qi, Shiqi Miao, Haili Huang, Mao Guo, Lei Zhang, Lin Yang, and Chenghu Zhou. 2022. "Quantitative Analysis on Coastline Changes of Yangtze River Delta Based on High Spatial Resolution Remote Sensing Images" Remote Sensing 14, no. 2: 310. https://doi.org/10.3390/rs14020310

APA Style

Wu, Q., Miao, S., Huang, H., Guo, M., Zhang, L., Yang, L., & Zhou, C. (2022). Quantitative Analysis on Coastline Changes of Yangtze River Delta Based on High Spatial Resolution Remote Sensing Images. Remote Sensing, 14(2), 310. https://doi.org/10.3390/rs14020310

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