| Session Details | |
| Section | IG - Interdisciplinary Geosciences |
| Session Title | Sediment Dynamics from Headwater to Coastal Zones: Watershed Prospective and Scaling Issues |
| Main Convener | Dr. Shigeru Mizugaki (Public Works Research Institute, Japan) |
| Co-convener(s) | Prof. David Higgitt (University of Nottingham Ningbo, China) Prof. Mio Kasai (Hokkaido University, Japan) Dr. Takashi Gomi (Tokyo University of Agriculture and Technology, Japan) |
| Session Description | Sediment supply, transport, and in-channel storage can be spatially and temporally varied depending on the geological and geomorphological settings. Dynamics of sediment has been changed with climate change and human impact including land-use development. In Asian and Oceania region, such changes have been accelerated due to rapid population growth and changes in resources utilization. Under such circumstance, understanding processes of sediment supplies, transport, and storage are essential for river management, disaster prevention, and conservation of aquatic ecosystems. Controlling factors for the variability of sediment dynamics can occurred complex interaction among geology, geomorphology and land-cover. Relationship of supply and transport capacities of a given watershed can also alter the dynamics of sediment in rivers. Temporal patterns of propagation of sediment from up to down streams can also alter river and costal sediment degradation and aggradation. Such spatial and temporal variability has been demonstrated scaling issues of sediment dynamics in watershed scales. This session aims to discuss the sediment dynamics and its controlling factors from mountain to coastal zones from the view point of watershed scale. Sediment yield, sediment transport, river sedimentation and sediment budget from headwater to coastal zones are included in this session. We specifically welcome for tacking issues of spatial and temporal variability of sediment dynamics of watershed scales. New methods and framework for understanding the dynamics of sediment in watershed and coastal zones are also welcome. Topical issues in connectivity of sediment transports from hillslope, headwater, and downstream systems in different landscapes in Asian and Oceania regions will be discussed throughout this session. |