海洋地质前沿2026，Vol.42Issue(2)：90-100,11.DOI:10.16028/j.1009-2722.2025.021
基于GOCI数据的黄河三角洲表层悬浮体浓度时空变化特征及影响因素
Spatio-temporal characters and its influencing factors of surface suspended sediment concentration based on GOCI data in the Yellow River Delta
摘要
Abstract
Based on the high spatiotemporal resolution GOCI remote sensing data,we systematically investig-ated the spatiotemporal variation characteristics of surface suspended sediment concentration(SSC)in the Yellow River Delta and its adjacent waters.The coupling mechanisms between SSC evolution and hydrodynamic para-meters(wave height,current velocity fields)are quantitatively explored.Key findings include:SSC exhibits marked seasonal variation with higher values in winter-spring and lower values in summer-autumn.Spatially,a distinct nearshore-high and offshore-low pattern emerges,and the maximum concentrations observed in estuarine zones,western Laizhou Bay,and Gudong coastal waters.The waves significantly modulate SSC,showing an ex-ponential positive correlation between wave height and SSC(R2=0.7).Tidal phase modulates high-SSC transport:southeastward dispersion during flood tide and northwestward retreat during ebb tide;Tidal cyclicity affects SSC magnitude,with greater variability during spring tides where high-current zones coincide with SSC fluctuation hotspots.This study demonstrated that synergistic tide-wave interactions could enhance bed shear stress,thus trig-gering sediment resuspension,which is the primary mechanism governing SSC dynamics during spring tides in the Yellow River deltaic areas.关键词
黄河三角洲/GOCI/悬浮体浓度/水动力因素Key words
Yellow River Delta/GOCI/suspended sediment concentration/hydrodynamic factors分类
海洋科学引用本文复制引用
范玉锦,马妍妍,尹维翰,徐继尚,孙洪安,田振环..基于GOCI数据的黄河三角洲表层悬浮体浓度时空变化特征及影响因素[J].海洋地质前沿,2026,42(2):90-100,11.基金项目
国家重点研发计划政府间国际科技创新合作专项(2024YFE0116400) （2024YFE0116400）
