Coastal vulnerability is a condition of a coastal community or society that leads to or causes an inability to face the threat of danger.The level of vulnerability can be viewed from the physical(infrastructure),socia...Coastal vulnerability is a condition of a coastal community or society that leads to or causes an inability to face the threat of danger.The level of vulnerability can be viewed from the physical(infrastructure),social,demographic,and economic vulnerabilities.Physical vulnerability(infrastructure)describes a physical condition(infrastructure)that is prone to certain hazard factors.The coastal vulnerability areas can also be interpreted as a condition where there is an increase in the process of damage in the coastal area which is caused by various factors such as human activities and factors from the nature.This research aims to determine the level of coastal vulnerability in Indramayu coastal Regency with a Coastal Vulnerability Assessment(CVA)analysis approach and a Geographic Information System(GIS).Mapping the status of the vulnerability level of the Indramayu coastal area using the CVA method where the index range generated from the calculation of the four physical parameters mentioned above is between 2.887-3.651 or are in moderate vulnerability.A higher vulnerability value is found in several locations such as Juntikedokan and Benda villages.It is necessary to develop coastal protection in this area to prevent damage to the coastal area.展开更多
-The effect of wave group on wave run-up on a slope dike is mainly discussed in this paper. Two simulating methods of wave group and their applications in laboratory are introduced. Synthesizing the research results o...-The effect of wave group on wave run-up on a slope dike is mainly discussed in this paper. Two simulating methods of wave group and their applications in laboratory are introduced. Synthesizing the research results of wave run-up on a slope dike, the effect of wave group on wave run-up on a slope dike in coastal protection engineering is studied as the main point.展开更多
A linear hybrid model of Mild Slope Equation （MSE） and Boundary Element Method （BEM） is developed to study the wave propagation around floating structures in coastal zones. Both the wave refraction under the influ...A linear hybrid model of Mild Slope Equation （MSE） and Boundary Element Method （BEM） is developed to study the wave propagation around floating structures in coastal zones. Both the wave refraction under the influence of topography and the wave diffraction by floating structures are considered. Hence, the model provides wave properties around the coastal floating structures of arbitrary shape but also the wave forces on and the hydrodynamic characteristics of the structures. Different approaches are compared to demonstrate the validity of the present hybrid model. Several numerical tests are carried out for the cases of pontoons under different circumstances. The results show that the influence of topography on the hydrodynamic characteristics of floating structures in coastal regions is important and must not be ignored in the most wave period range with practical interests.展开更多
文摘Coastal vulnerability is a condition of a coastal community or society that leads to or causes an inability to face the threat of danger.The level of vulnerability can be viewed from the physical(infrastructure),social,demographic,and economic vulnerabilities.Physical vulnerability(infrastructure)describes a physical condition(infrastructure)that is prone to certain hazard factors.The coastal vulnerability areas can also be interpreted as a condition where there is an increase in the process of damage in the coastal area which is caused by various factors such as human activities and factors from the nature.This research aims to determine the level of coastal vulnerability in Indramayu coastal Regency with a Coastal Vulnerability Assessment(CVA)analysis approach and a Geographic Information System(GIS).Mapping the status of the vulnerability level of the Indramayu coastal area using the CVA method where the index range generated from the calculation of the four physical parameters mentioned above is between 2.887-3.651 or are in moderate vulnerability.A higher vulnerability value is found in several locations such as Juntikedokan and Benda villages.It is necessary to develop coastal protection in this area to prevent damage to the coastal area.
文摘-The effect of wave group on wave run-up on a slope dike is mainly discussed in this paper. Two simulating methods of wave group and their applications in laboratory are introduced. Synthesizing the research results of wave run-up on a slope dike, the effect of wave group on wave run-up on a slope dike in coastal protection engineering is studied as the main point.
基金Project supported by the National Natural Science Foundation of China (Grant No: 50379026)
文摘A linear hybrid model of Mild Slope Equation （MSE） and Boundary Element Method （BEM） is developed to study the wave propagation around floating structures in coastal zones. Both the wave refraction under the influence of topography and the wave diffraction by floating structures are considered. Hence, the model provides wave properties around the coastal floating structures of arbitrary shape but also the wave forces on and the hydrodynamic characteristics of the structures. Different approaches are compared to demonstrate the validity of the present hybrid model. Several numerical tests are carried out for the cases of pontoons under different circumstances. The results show that the influence of topography on the hydrodynamic characteristics of floating structures in coastal regions is important and must not be ignored in the most wave period range with practical interests.
