Increased knowledge of heat island surfaces (HIS) and intense heat island surfaces (IHIS) in urban environments is critical for the mitigation of excess urban heat and the associated burden on power grids. In this study, we propose a robust thermal remote sensing solution for the delineation of HIS and IHIS areas in Abha and Khamis, a tourist resort in southern Saudi Arabia. Land surface temperature (LST) classification images were retrieved by applying the Single Channel Algorithm (SCA) to thermal band 10 of Landsat 08 data. The pixels of the LST images were grouped based on temperature ranges using ENVI 5.5 software, and were then delineated into classification images of HIS and IHIS areas. Analysis of these images revealed that the overall area of HIS dynamics in both Abha and Khamis ranged from 562 to 826 km², with temperature variations between 36.0 °C and 41.0 °C, while IHIS ranged from under 1 to 14 km², with temperature fluctuations ranging between 40 and 46 °C. The city of Khamis had larger summer HIS and IHIS areas than the city of Abha. This study has a strong potential to support local stakeholders, including urban planners, in tracking and offsetting the negative urban heat island (UHI) effects that result from population growth and an increase in impervious surfaces.

在城市环境中增加对热岛表面（HIS）和强热岛表面（IHIS）的了解对于缓解城市多余热量和电网相关负担至关重要。在这项研究中，我们为沙特阿拉伯南部旅游胜地Abha和Khamis的HIS和IHIS区域划定提出了一种可靠的热遥感解决方案。通过将单通道算法（SCA）应用于Landsat 08数据的热带10来检索地表温度（LST）分类图像。使用ENVI 5.5软件根据温度范围对LST图像的像素进行分组，然后将其描绘为HIS和IHIS区域的分类图像。对这些图像的分析显示，艾卜哈和哈米斯的HIS动态总面积范围为562至826 km ²温度变化在36.0°C和41.0°C之间，而IHIS的变化范围在1至14 km ^2以下，温度波动在40至46°C之间。卡米斯市的夏季HIS和IHIS区域比艾卜哈市大。这项研究具有强大的潜力，可以支持包括城市规划者在内的当地利益相关者追踪和抵消人口增长和不透水面增加造成的城市热岛效应（UHI）的负面影响。