海岸灾害及防护教育部重点实验室(河海大学)系列特邀学术报告会
报告时间：2023年4月18日（周二）下午15:00-17:00
报告地点：严恺馆702报告厅
报告题目：Idealized, semi-analytical modelling of estuaries and coastal dynamics
报告人：危小艳研究员，英国国家海洋研究中心
报告人简介：
Xiaoyan obtained her PhD in Applied Mathematics from the Delft University of Technology in the Netherlands, before that she did her bachelor and master in Harbour, coastal and offshore engineering in Hohai University (China). Xiaoyan joined NOC Liverpool in 2017, immediately after her PhD, and has been working for NOC for over 6 years. Xiaoyan's research interest covers various estuarine & coastal issues such as salt intrusion, sediment erosion/deposition, and flooding. She uses process-based semi-analytical models and state-of-the-art numerical models to investigate the variability and causes of those issues and understand/predict their responses to human interventions and climate change. Over the last two years, she developed a strong interest in solution-oriented sustainability research particularly around nature-based solutions. She has been extending her semi-analytical estuarine models to test the efficiency of different wetland-based solution designs for mitigating multiple climate risks in estuaries and embayments.
报告简介：
Estuaries and coastal seas are important marine systems of significant socio-economic and ecological values. They accommodate world's largest port business, provide key habitats for marine lives, filter terrestrial pollutants and excess nutrients, and support the healthy functioning of coastal and shelf seas. Climate change and coastal development have resulted in increasing estuaries risks such as flooding, turbidity, erosion/deposition, salt intrusion. However, our ability to understand and predict the variability and impacts of such risks, which is essential for managing the adverse impacts of climate change and human activities on the sustainable functioning of these systems, remains limited. The main reason for this is associated with the complex spatio-temporal variability of water levels, currents, salinity, and sediment concentrations, which are controlled by various poorly understood processes and their potential interactions.
In this presentation, Xiaoyan is going to introduce a few process-based, idealized semi-analytical models that allow us to explicitly dissect the contributions of different physical processes to estuarine hydrodynamics and material transport. She will show a few examples where these models were successfully used to systematically investigate the controlling physical processes of extreme water levels, tidal currents, residual circulation, sediment and salt transport, and their sensitivities to natural and anthropogenic changes.