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Article

Spatiotemporal Changes of Coastline over the Yellow River Delta in the Previous 40 Years with Optical and SAR Remote Sensing

by 1, 1,2,3,*, 1,4, 5, 1,2, 1,2 and 1,2
1
Institute of Estuarine and Coastal Zone, College of Marine Geosciences, Key Lab of Submarine Geosciences and Prospecting Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
2
Laboratory of Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China
3
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
4
College of Geological Engineering and Geomatics, Chang’an University, Xi’an 710054, China
5
Department of Marine Surveying and Mapping, South GNSS Navigation Co., Ltd., Guangzhou 510630, China
*
Author to whom correspondence should be addressed.
Academic Editors: Giacomo De Carolis, Francesca De Santi, Virginia Zamparelli and Gianfranco Fornaro
Remote Sens. 2021, 13(10), 1940; https://0-doi-org.brum.beds.ac.uk/10.3390/rs13101940
Received: 18 April 2021 / Revised: 10 May 2021 / Accepted: 13 May 2021 / Published: 16 May 2021
(This article belongs to the Special Issue Advances in Marine and Maritime Applications of SAR)
The integration of multi-source, multi-temporal, multi-band optical, and radar remote sensing images to accurately detect, extract, and monitor the long-term dynamic change of coastline is critical for a better understanding of how the coastal environment responds to climate change and human activities. In this study, we present a combination method to produce the spatiotemporal changes of the coastline in the Yellow River Delta (YRD) in 1980–2020 with both optical and Synthetic Aperture Radar (SAR) satellite remote sensing images. According to the measurement results of GPS RTK, this method can obtain a high accuracy of shoreline extraction, with an observation error of 71.4% within one pixel of the image. Then, the influence of annual water discharge and sediment load on the changes of the coastline is investigated. The results show that there are two significant accretion areas in the Qing 8 and Qingshuigou course. The relative high correlation illustrates that the sediment discharge has a great contribution to the change of estuary area. Human activities, climate change, and sea level rise that affect waves and storm surges are also important drivers of coastal morphology to be investigated in the future, in addition to the sediment transport. View Full-Text
Keywords: Yellow River Delta; coastline extraction; optical remote sensing; Synthetic Aperture Radar; spatiotemporal changes; water discharge; sediment load; human activities Yellow River Delta; coastline extraction; optical remote sensing; Synthetic Aperture Radar; spatiotemporal changes; water discharge; sediment load; human activities
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MDPI and ACS Style

Zhu, Q.; Li, P.; Li, Z.; Pu, S.; Wu, X.; Bi, N.; Wang, H. Spatiotemporal Changes of Coastline over the Yellow River Delta in the Previous 40 Years with Optical and SAR Remote Sensing. Remote Sens. 2021, 13, 1940. https://0-doi-org.brum.beds.ac.uk/10.3390/rs13101940

AMA Style

Zhu Q, Li P, Li Z, Pu S, Wu X, Bi N, Wang H. Spatiotemporal Changes of Coastline over the Yellow River Delta in the Previous 40 Years with Optical and SAR Remote Sensing. Remote Sensing. 2021; 13(10):1940. https://0-doi-org.brum.beds.ac.uk/10.3390/rs13101940

Chicago/Turabian Style

Zhu, Quantao, Peng Li, Zhenhong Li, Sixun Pu, Xiao Wu, Naishuang Bi, and Houjie Wang. 2021. "Spatiotemporal Changes of Coastline over the Yellow River Delta in the Previous 40 Years with Optical and SAR Remote Sensing" Remote Sensing 13, no. 10: 1940. https://0-doi-org.brum.beds.ac.uk/10.3390/rs13101940

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