C08.05 Coastal Systems

Coastal Systems - Coastal erosion and management

Chair(s): Hervé Regnauld

Abstract:
Coastal erosion and management
The imperatives of economic development have constantly brought pressure to bear on coasts. In many countries throughout the world, the coast is increasingly destabilized by the construction of tourist infrastructure, routes and harbours. This trend indicates that the lessons accumulated from the destabilization of coasts due to massive development, commonly resulting in erosion and costly engineering solutions, are commonly forgotten or deliberately ignored in many countries, especially developing countries, under the pressures of development. The aim of this session is to bring together experiences illustrating problems of coastal erosion and management. The themes range from basic apects of causes of human-induced coastal destabilization (including perturbation of river sediment supply by dams and aggregate extraction, and longshore sediment transport perturbation by coastal engineering structures), to mitigation using various techniques, and management and mismanagement issues. Examples on links between the physical and human dimensions of coastal erosion and management will be particularly appreciated. It is intended that the session will contribute to a better consideration of the effects of  development pressures on coastal destabilization and how this can be mitigated.

Timeslots: 2
 

Coastal Systems - Sea-level rise and impacts

Chair(s): Helmut Brückner

Abstract:
Sea-level rise and impacts
Sea-level rise is an important issue in terms of coastal stability. It has implications not only for shoreline translation but also regarding coastal vulnerability to submersion and storms. This latter aspect is relevant to the exposure of more or less densely populated coastal regions, with implications for population mobility, agriculture and economic activities. Low-lying coasts, such as barrier islands and deltas, are particularly prone to the impacts of sea-level rise but all types of shores, including rocky shores, are concerned. This session calls for presentations on all aspects of sea-level rise and/or its impact on coasts. Themes of interest include measurement and modelling of sea-level rise, coastal vulnerability to sea-level rise, the human dimensions of sea-level rise, legislation and management issues relative to sea-level rise and its impacts.

Timeslots: 2
 

Coastal Systems - Coastal monitoring

Chair(s): Andreas Vott

Abstract:
Coastal monitoring
Efficient analysis of coastal systems requires good monitoring of contemporary and past processes and environments. Technological improvements and methodological innovations are at the basis of efficient data collection and analysis, both of which are, in turn, necessary to the comprehension of how coastal systems develop and evolve. Considerable development and technical progress have been gained in areas of process and form analyses applicable to coastal environments. Observational capacities concerning coasts have also been enhanced by the exponential development of remote sensing techniques and by digital photography. Monitoring has become extremely important in the generation of data that can be used to model and predict patterns of coastal development and evolution, embracing both the human and physical dimensions. This session is open to all issues of coastal monitoring, ranging from methodological considerations, through techniques, to case studies.

Timeslots: 2
 

Coastal Systems - Beaches and dunes

Chair(s): Dr. Norb Psuty

Abstract:
Beaches and dunes
This session is devoted to all themes relating to beaches and dunes, ranging from examples of beach studies, dune studies, beach-dune interactions, erosion, sedimentation, pocket beaches and dunes, bedrock-bound beaches and dunes, process studies, including sediment transport, and morphodynamics. Other themes addressed by this session are beach and dune monitoring, and exposure, response and resilience of beaches and dunes to storms and tsunami.

Timeslots: 2
 

Coastal Systems - Rocky coasts

Chair(s): Wayne Stephenson

Abstract:
Rocky coasts
Rocky coasts are the dominant type of coast at the world scale. Recognition and description of rocky coasts are crucial for correctly interpreting the geological history of oceanic and volcanic arc islands, for distinguishing between ancient tsunami and storm deposits, and for interpreting coarse-grained deposits preserved on high-energy coasts. There have been significant advances in our understanding of rocky coasts, achieved through modern analytical techniques and high-precision monitoring of processes and erosion rates, dating methods, and mathematical modelling. Notwithstanding, there are still significant gaps in our understanding of rocky coasts. This session is devoted to the whole range of themes relating to rocky coasts, ranging from case studies, processes, monitoring, and exposure, response and resilience of rocky coasts to storms and tsunami.

Timeslots: 2