Coastal dynamic geomorphology under high intensity disturbance: research progress and perspectives

The coastal zone is the strongest interaction zone among the land, ocean, and atmosphere, and it is also the area that is most affected by global climate, sea-level change, and human activities.The dynamic process of the coastal zone has obvious characteristics of the ocean-shelf-bay-coast multi-scale and multi-physical field, and its dynamic geomorphic process and response mechanism are special.The frequent occurrence of extreme meteorological events, such as typhoons, and the impact of strong human activities, such as engineering measures, have led to greater uncertainty in the dynamic geomorphic evolution of the coastal zone.The research progress of coastal dynamic geomorphology under high-intensity disturbance, extreme conditions, and strong human activities is summarized herein.Owing to the complexity of the multi-scale dynamic process of the coastal zone and the internal mechanism of coastal geomorphology response under the joint action of global climate change and human activities, it is necessary to study the characteristics of coastal dynamic geomorphology and explore the dynamic process and response mechanism of the coastal zone under high-intensity disturbance in the future from the multi-physical field perspective of atmosphere-wave-ocean-sediment, from the multi-scale perspective of ocean-shelf-bay-coast, and from the multi-process perspective of dynamic-sediment-geomorphology.