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Assessment of Urban Sprawl of Islamabad Metropolitan Area Using Multi-Sensor and Multi-Temporal Satellite Data

机译:使用多传感器和多时相卫星数据评估伊斯兰堡市区的城市扩张

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摘要

The present research relates to the exploitation of remote sensing and geographic data to study the metropolitan expansion, land use patterns and land cover classification of Islamabad. The metropolitan development based on growth direction and expansion trends from the city centre was observed for a period of 38 years. Landsat satellite data from three sensors, that is, multi-spectral sensor, thematic mapper and enhanced thematic mapper plus, were used in this study. The classification of the complex spatial assemblage of urban environment and its expanding precincts was done using temporal data collected during the period 1972-2009 and geo-referenced to a common coordinate system. The information regarding agriculture farms, bare land, dense forest, mixed vegetation, shadowy regime, sparse residential areas, thickly populated areas and water bodies was extracted. The extent of urban conurbation growth was computed and analyzed. Our results show that the urban development is expanded by 87.31 km~2. In addition, the urban growth is accompanied by the loss of forest and other natural habitat in the city and has influenced the spatial patterns and structure of urban development. It is concluded that the remote sensing and GIS techniques supplemented with census data are very efficient and effective for studying the metropolitan growth patterns.
机译:本研究涉及利用遥感和地理数据来研究伊斯兰堡的城市扩展,土地利用模式和土地覆被分类。在38年的时间里,根据市中心的增长方向和扩张趋势,进行了大都市发展。本研究使用来自三个传感器的Landsat卫星数据,即多光谱传感器,主题映射器和增强的主题映射器plus。使用1972-2009年期间收集的时态数据对城市环境的复杂空间组合及其扩展区域进行了分类,并参考了一个共同的坐标系。提取了有关农业农场,光秃秃的土地,茂密的森林,混合的植被,阴暗的政权,稀疏的居民区,人口稠密的地区和水体的信息。计算和分析了城市城市化增长的程度。我们的结果表明,城市发展扩大了87.31 km〜2。此外,城市发展伴随着城市森林和其他自然栖息地的流失,影响了城市发展的空间格局和结构。结论是,遥感和GIS技术与人口普查数据相辅相成,对于研究大都市的增长方式非常有效。

著录项

  • 来源
    《Arabian Journal for Science and Engineering》 |2012年第1期|p.101-114|共14页
  • 作者单位

    Department of Meteorology, King Abdulaziz University, P. O. Box 80208, Jeddah 21589, Saudi Arabia;

    Climate Snow and Hydrology Research Group (CSHRG), Department of Meteorology, COMSATS Institute of Information Technology (CUT), Islamabad, Pakistan;

    Climate Snow and Hydrology Research Group (CSHRG), Department of Meteorology, COMSATS Institute of Information Technology (CUT), Islamabad, Pakistan;

    Climate Snow and Hydrology Research Group (CSHRG), Department of Meteorology, COMSATS Institute of Information Technology (CUT), Islamabad, Pakistan;

    Climate Snow and Hydrology Research Group (CSHRG), Department of Meteorology, COMSATS Institute of Information Technology (CUT), Islamabad, Pakistan,Department of Physics, Texas Tech University, MS 1051, Lubbock, TX 79409, USA;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    pakistan; islamabad; landsat; remote sensing; GIS;

    机译:巴基斯坦;伊斯兰堡;陆地卫星遥感;地理信息系统;

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