| A Preliminary Study on the Calculating Method for the Evolution of Siltation and Erosion of Tidal Flat Based on GIS |
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| 作者姓名： | 杜景龙 郜昂 杨世伦 张文祥 赵华云 李鹏 |
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| 作者单位： | [1]StateKeyLabofEstuarine＆CoastalResearch,EastChinaNormalUniversity,Shanghai200062,China [2]DepartmentofUrbanandEnvironment,UniversityofTechnologyandScienceofSuzhou,Suzhou215011,Jiangsu,China／／StateKeyLabofEstuarine＆CoastalResearch,EastChinaNormalUniversity,Shanghai200062,China |
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| 基金项目： | supported by the National Great Science Project，国家自然科学基金 |
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| 摘 要： | The estuary and coast is an area where the land and the sea interact and a place in which human beings frequently move about so that understanding and controlling the change and development modes of the coastal landform plays a vital part in exploiting and protecting coastal resources. A model is the generalization and abstraction of objective things. This paper summarizes four methods for the landform development of the tidal shore and underwater delta, mainly discusses the model‘s structural elements, and presents their specific application on the basis of the authors‘ case study. With the application of the profile model, the dynamic change of coastal landform can be clearly seen by contrasting the different profiles of different years. Through the shrinking, expanding and transformation of the isobath, plane model is used to study the macro-change of the shoal and the coastal landform. Speed model is an efficient means to analyze the trend of erosion and deposition and the local change in a great area of the sea. Statistical survey model is a static analysis, which can be used to establish the relationship between the erosion and deposition of the shoal and the altitude and slope of survey spot.
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| 关 键 词： | 剖面模型 速度模型 统计测量 扬子江河口 海岸保护 沉积性质 |
A Preliminary Study on the Calculating Method for the Evolution of Siltation and Erosion of Tidal Flat Based on GIS |
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| DU Jinglong,Gao Ang,YANG Shilun,Zhang Wenxiang,ZHAO Huayun,LI Peng.A Preliminary Study on the Calculating Method for the Evolution of Siltation and Erosion of Tidal Flat Based on GIS[J].Marina Science Bulletin,2005,7(1):45-53. |
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| Authors: | DU Jinglong Gao Ang YANG Shilun Zhang Wenxiang ZHAO Huayun LI Peng |
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| Institution: | 1. Department of Urban and Environment, University of Technology and Science of Suzhou, Suzhou 215011,Jiangsu, China;State Key Lab ofEstuarine & Coastal Research, East China Normal University, Shanghai 200062, China
2. State Key Lab ofEstuarine & Coastal Research, East China Normal University, Shanghai 200062, China |
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| Abstract: | T he estuary and coast is an area where the land and the sea interact and a place in which human beings frequently move about so that understanding and controlling the change and development modes of the coastal landform plays a vital part in exploiting and protecting coastal resources. A model is the generalization and abstraction of objective things. This paper summarizes four methods for the landform development of the tidal shore and underwater delta, mainly discusses the model's structural elements, and presents their specific application on the basis of the authors' case study. With the application of the profile model, the dynamic change of coastal landform can be clearly seen by contrasting the different profiles of different years. Through the shrinking, expanding and transformation of the isobath, plane model is used to study the macro-change of the shoal and the coastal landform. Speed model is an efficient means to analyze the trend of erosion and deposition and the local change in a great area of the sea. Statistical survey model is a static analysis, which can be used to establish the relationship between the erosion and deposition of the shoal and the altitude and slope of survey spot. |
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| Keywords: | p rofile model p lane model speed model statistical survey model Yangtze Estuary |
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