Scholarlink

<p>Urbanisation in Southeast Asia has intensified land surface warming and Intra-Urban Heat Island Intensity (IUHII) effects. This study examined Land Surface Temperature (LST), IUHII, and Land Use/Land Cover (LULC) changes across eleven Southeast Asian capital cities from 1990 to 2024. LST retrieval employed the radiative transfer equation, while LULC was classified via a Random Forest algorithm with above 97% accuracy. IUHII was calculated from urban–green space temperature differences. Significant warming trends emerged, especially in Vientiane (0.350 °C/year), Kuala Lumpur (0.235 °C/year), and Bangkok (0.215 °C/year). LULC classification revealed major urban expansion with vegetation and water loss. This first multi-decadal, cross-city IUHII assessment in tropical Southeast Asia addresses a key research gap. However, this study is limited by its focus on capital cities, reliance on historical trends, and exclusion of socio-economic and governance factors. Nevertheless, the results provide critical empirical evidence to guide climate-resilient urban planning and support green infrastructure integration.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Thermal intensification and urban land cover change in Southeast Asian capitals: over three decades of satellite observations and trend analysis

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月11日

查看全文
  • Yong Le Ng,
  • Ming Han Lim,
  • Yuk Feng Huang,
  • Yee Ling Lee

摘要

Urbanisation in Southeast Asia has intensified land surface warming and Intra-Urban Heat Island Intensity (IUHII) effects. This study examined Land Surface Temperature (LST), IUHII, and Land Use/Land Cover (LULC) changes across eleven Southeast Asian capital cities from 1990 to 2024. LST retrieval employed the radiative transfer equation, while LULC was classified via a Random Forest algorithm with above 97% accuracy. IUHII was calculated from urban–green space temperature differences. Significant warming trends emerged, especially in Vientiane (0.350 °C/year), Kuala Lumpur (0.235 °C/year), and Bangkok (0.215 °C/year). LULC classification revealed major urban expansion with vegetation and water loss. This first multi-decadal, cross-city IUHII assessment in tropical Southeast Asia addresses a key research gap. However, this study is limited by its focus on capital cities, reliance on historical trends, and exclusion of socio-economic and governance factors. Nevertheless, the results provide critical empirical evidence to guide climate-resilient urban planning and support green infrastructure integration.