Research Progress in Area 1 方向 ( 一 ) 課題進展 95 Abstract Flows over continental slopes impose a broad impact on the marine ecosystems and global biogeochemical cycles. In a warming climate, the influence of shelf/slope processes on marine ecosystems can be intensified. There is thus a strong incentive for global biogeochemical ocean models to resolve the flows over continental slopes. However, even state-of-the-art global oceanmodels cannot resolve fine-scale processes over continental margins, which inevitably hinders accurate forecast of the ocean biogeochemical cycles. In this proposal, Dr. Wang takes a major step by measuring the biogeochemical migration over continental slopes via a suite of high resolution simulations of shelf/slope processes, and quantifies the over-slope biogeochemical migration in a warming scenario. Research Activities and Progress • Developed a set of tools for framing the tracer transport across continental slopes; • Investigate biogeochemical property migration over continental slopes; • Quantify the biogeochemical migration over continental slopes under climate warming. Key Findings • Tracer transport over continental slopes is inhibited by the steepness of ocean bottom; • Tracer transport over continental slopes is controlled by the both turbulence and bathymetry; • Tracer transport patterns over continental slopes are far more complicated than those in the open ocean, and should therefore incorporate slope-related parameters for prediction purposes in biogeochemical models. under urbanized estuarine conditions. Research Output Publication 1 Trained personnel 3 Migration of Biogeochemical Properties over Continental Slopes under Climate Warming Prof. Yan Wang The Hong Kong University of Science and Technology Fig 1. Wei and Wang (2021) JAMES
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