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Tran Thi Van1, Ha Duong Xuan Bao2 (2007). Urban land cover change through development of imperviousness in Ho Chi Minh City, VietNam. Asian Association on Remote Sensing (AARS) Institute of Industrial Science, University of Tokyo. pp. 1-6.
1Institute for Environment and Resources - Vietnam National University, VietNam
2Faculty of Applied Science – Ton Duc Thang University, VietNam
Abstract. In the core of Mekong Delta, Ho Chi Minh City is the most important of Vietnam after Hanoi with area of 2,095km2. Before 1975, there were about 3 million inhabitants concentratively living in the inner city on the area of 14000ha. During the last two decades, it became the biggest industrial, commercial, scientific, technological and tourist center. Urban area is expanded manyfold. In accordance with statistics in 2006, its population was about 6.2 million people not including emigrants from other provinces. The population growth and socio-economic development lead to rapid growth of traffic roads and houses, which are identified by imperviousness. Urban imperviousness has recently emerged as a key indicator being used to address a variety of urban environmental issues and as a useful alternative to assess urban growth. This study set up the utilization of remote sensing technology at sub-pixel level. Multi-temporal Landsat TM, ETM+ and ASTER data were used to investigate the process of urban land cover growth through mapping and monitoring change of impervious surface areas in years 1989, 2002 and 2006. The signification of this study will be a scientific fundamental for planning and sustainable urban environment management.