卫星海洋环境监测预警全国重点实验室为增进学术交流，促进实验室对外开放，组织系列“海星系列学术讲座”，邀请国内外知名专家与青年科研人员分享前沿科学动态，讨论最新学术成果，欢迎大家踊跃参加。

召集人：孟启承 副研究员 鲍敏 副研究员

会议时间：8月19日（周二）10:30-12:00

会议地点：1号楼610会议室

报告人：陈佳玥 博士（Institute of Coastal Systems，Helmholtz Zentrum - Hereon）

报告题目：Sediment transport pathways and organic carbon burial impacted by offshore wind farms in shelf seas

报告人简介：Jiayue Chen is Phd candidate from Dr. Wenyan Zhang’s group in the department Sediment Transport and Morphodyamics in the Institute of Coastal Systems - Analysis and Modeling, Helmholtz-Zentrum Hereon and Universität Hamburg, Hamburg, Germany. Her expertise mainly lies on physical oceanography, sediment dynamics and numerical modelling. In particular, the source-to-sink system of sediment and particulate organic carbon transport in the coastal shelf sea. 

报告摘要：The rapid expansion of offshore wind farms increasingly impacts ocean environments. Little is known concerning synergistic effects of wind farm infrastructure on large-scale sediment transport and seabed ecosystem functioning. Using a 3D hydro-morphodynamic model integrating wake effects in both the atmosphere and ocean compartments, we assessed wind farm impacts on regional-scale sediment transport and organic carbon sedimentation in the North Sea. Results suggest that wind farm wakes can alter net sediment transport fluxes by up to 30% locally, reduce mud accumulation in established depocenters and create new depocenters. These shifts are linked to changes in stratification and residual currents, driving the redistribution of up to 1.3 Tg of fine sediment and 0.05 Tg of particulate organic carbon annually. Wind farms also retain ~1.5% of annual riverine sediment input to the open ocean, affecting connectivity with nearshore systems like the Wadden Sea. These findings underscore the need to consider the system-wide impacts in marine spatial planning, ecosystem management and protection.