TAILIEUCHUNG - Báo cáo "Application of remote sensing for shoreline change detection in Cuu Long estuary "

Coastal zone of Cuu Long estuary is a place through which Mekong River flows into the Eastern Sea with 8 estuaries. is the zone is formed under the influences in the interaction between river and sea. Geologically, coastal zone of Mekong delta is characterised by the predominat of clay and silt formations. These two factors makes the shoreline sensitive to exogenous processes such assedimentation and erosion This paper presents an application of satellite remote sensing technology to detect and analyze the spatial changes as well as quantify the shoreline change in Cuu Long estuary. Landsat and Aster satellite images were. | VNU Journal of Science Earth Sciences 25 2009 217-222 Application of remote sensing for shoreline change detection in Cuu Long estuary Tran Thi Van1 Trinh Thi Binh2 1 Institute for Environment and Resources Vietnam National University Ho Chi Minh City 2 University of Natural Science Vietnam National University Ho Chi Minh City Received 2 November 2009 Abstract. Coastal zone of Cuu Long estuary is a place through which Mekong River flows into the Eastern Sea with 8 estuaries is the zone is formed under the influences in the interaction between river and sea. Geologically coastal zone of Mekong delta is characterised by the predominat of clay and silt formations. These two factors makes the shoreline sensitive to exogenous processes such as sedimentation and erosion. This paper presents an application of satellite remote sensing technology to detect and analyze the spatial changes as well as quantify the shoreline change in Cuu Long estuary. Landsat and Aster satellite images were used with band ratio method for shoreline change results present shoreline changes maps in three periods 1989 2001 and 2004. The outcomes of the case study can be used as an orientation for the sustainable integrated management plan of coastal zones. Keywords accretion band ratio erosion change detection shoreline. 1. Introduction - Shoreline the boundary between land and sea keeps changing its shape and position continuously due to dynamic conditions. The change in shoreline is mainly associated with waves tides winds periodic storms sea-level change the geomorphological processes such as erosion arid accretion and human activities 1 Erosion and accretion affect human life agricukture and aquculture practice and waterway transport activities. Detection and measurement of shoreline changes are an important task in environmental monitoring and coastal zone management. Approaches to Corresponding author Tel. 84-919188485 E-mail tranthivan@ 217 detecting shoreline .

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