• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of geovisualization and spatial analysis >Measuring Dhaka's Urban Transformation Using Nighttime Light Data
【24h】

Measuring Dhaka's Urban Transformation Using Nighttime Light Data

机译：使用夜间灯光数据测量达卡的城市转型

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cities are being restructured as a result of globalization, information flows, and changing economic processes. Global cities become command and control centers for subordinate production centers, resulting in the transformation of the mega-metropolitan system from monocentric to polycentric. The purpose of this paper is to analyze the urban transformation of the Dhaka region, Bangladesh. We estimated urban areas using remote sensing techniques and nighttime light data analysis. The urban areas were extracted from VIIRS nightlight datasets using ISODATA clustering algorithm. Urban areas were examined for two periods, from 2012 to 2017 and from 2017 to 2022. Apart from visual examination, the extracted urban areas were validated through the use of random sample points. Urban transformation was determined using hotspot analysis and the differentiation index for urban expansion. The finding is that Dhaka has continued to grow due to the continuous population growth and industrial centers' proximity. Secondly, the majority of physical expansion of the Dhaka region occurs along major arterial highways and shows a functional intra-regional decentralization of industrial agglomeration.
机译：城市被重组的结果全球化、信息流动和变化经济过程。对下属生产和控制中心中心,导致的转换从monocentric mega-metropolitan系统多中心。分析了城市达卡的转换地区,孟加拉国。利用遥感技术和夜间光数据分析。提取VIIRS夜灯使用的数据集ISODATA聚类算法。检查两个时期,从2012年到2017年从2017年到2022年。提取的城市被验证通过使用随机样本点。使用热点转换决定分析和分化指数的城市扩张。由于连续的持续增长人口增长和工业中心接近。达卡地区发生一起重大的扩张干线公路和显示功能区域内分散的工业集聚。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号