Physical study of the response of tidal flat development to the reduction in the input of Yellow River sediment into the sea

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 12

Published: April 10, 2025

Introduction Over the past three decades, approximately 16% of world’s tidal flats have been lost. In Yellow River Delta (YRD), reduction in sediment supply due to decreased discharge has raised concerns regarding morphological stability flats. Methods To investigate response flat development reduced input, a novel physical model experiment was conducted using natural silt from YRD flat. Offshore concentration simulate supply. An Argus system deployed wave basin for first time capture changes during experiment. Results The results indicate that 94% suspended settles its transport offshore Suspended (SSC) subtidal zone increased flood tides and ebb tides. With decreasing SSC, comb-shaped flow marks formed along vertical shoreline intertidal zone, while dominated by sand waves. For given morphology patterns varied across different cross-shore profiles; conversely, profile, SSC levels led distinct characteristics. Discussion This study demonstrates significant influence on dynamics. findings suggest continued reductions could exacerbate erosion risks YRD, highlighting need management strategies preserve stability.

Language: Английский

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Short term prediction of vertical deformation in tidal flat terrains based on PSO-VMD-LSTM

IEEE Transactions on Instrumentation and Measurement, Journal Year: 2024, Volume and Issue: 73, P. 1 - 14

Published: Jan. 1, 2024

Language: Английский

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Research and Application on In Situ Monitoring System Based on Sensor Array for Intertidal Beach Topography

IEEE Sensors Journal, Journal Year: 2024, Volume and Issue: 24(20), P. 33036 - 33047

Published: July 15, 2024

Terrain monitoring of intertidal beach is important to the coastline evolution research. Due complexity environment and dynamics terrain changes, in situ, real-time, long-term topography are big difficulties for existing observation methods. This article describes design field experimental research a situ system based on sensor array. The has two 20-m long flexible arrays containing 42 nodes can monitor changes an area with $10\times 10$ m simultaneously. optimal arrangement conditions deduced completely reconstruct changes. A calculation model change also proposed convert three-axis acceleration into vertical displacement To evaluate validate condition reconstruction model, experiment conducted Zhoushan Island. cumulative velocity silt zone tidal height waves observed obtained. results demonstrate feasibility stability under real-time conditions.

Language: Английский

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Mechanism of tidal driven vertical suspended sediment transport in Dumai Estuary

Regional Studies in Marine Science, Journal Year: 2024, Volume and Issue: unknown, P. 103976 - 103976

Published: Dec. 1, 2024

Language: Английский

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