A geospatial analysis of land surface temperature and the surface urban heat island in Tomsk City: A study based on Landsat 8 satellite imagery

doi:10.17223/25421379/36/11

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A geospatial analysis of land surface temperature and the surface urban heat island in Tomsk City: A study based on Landsat 8 satellite imagery	4 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.17223/25421379/36/11

#температура поверхности земли

#поверхностный городской остров тепла

#городской остров тепла

#городской климат

#Landsat-8, спутник дистанционного зондирования

Title: A geospatial analysis of land surface temperature and the surface urban heat island in Tomsk City: A study based on Landsat 8 satellite imagery
Title: Геопространственный анализ температуры поверхности земли и поверхностного городского острова тепла в городе Томске: исследование на основе спутниковых снимков Landsat 8
Creator: Marimira, Clide
Date: 2025
DOI: 10.17223/25421379/36/11
Description: An urban heat island defines a specific microclimate, where urban areas experience higher temperatures relative to surrounding rural or suburban areas. This phenomenon is linked to reduced wind speeds, alterations in wind direction, reduced urban ventilation and the accumulation of air pollutants within cities, resulting in negative health outcomes to urban residents. In recent years, advancements in thermal remote sensing technologies and the implementation of open data initiatives have prompted numerous investigations into the surface urban heat island. This study aims to investigate the geospatial distribution of land surface temperature and the surface urban heat island over Tomsk City, during the summer season of 2023. To achieve this, the research utilizes remote sensing imagery obtained from the Thermal Infrared Sensor 1 (TIRS1) and the Operational Land Imager (OLI), both instruments onboard the Landsat 8 Satellite. By applying geospatial analysis and modern satellite remote sensing techniques, including the surface urban heat island index method and zonal statistics, the study aims to; quantify the intensity and spatial extent of surface urban heat island; identify urban hotspots of land surface temperature anomalies and their spatial distribution over land cover and land use classes. The findings indicate a significant variation in land surface temperature and the surface urban heat island across the research area, with higher land surface temperature and more pronounced surface urban heat island effect predominantly observed in densely built-up areas. Specifically, 83 % of the urban hot spots exhibiting high land surfaces temperature anomalies were observed in densely built-up areas that is urban areas and 16% on bare soil surfaces. Notably, no surface urban heat island was observed in 54 % of the study area, wherein the corresponding major land use and land cover class was vegetation. The mean surface urban heat island intensity, herein the difference between the averages of land surface temperatures between urban and suburban areas ranged between 2°C to 3 °C. The findings of the study provide valuable insights into the dynamics of land surface temperature and the surface urban heat island effect in Tomsk City. The observed relationships between land surface temperature and surface urban heat island with specific land use and land covers emphasises that vegetation and water surfaces are crucial for reducing urban temperatures and creating favourable microclimate conditions which may consequently increase thermal comfort, and decrease energy consumption.

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collection(s): Геолого-географический факультет
Identifier: смотреть в электронном каталоге НБ ТГУ
Relation: Геосферные исследования
Type: статьи в журналах
Source: Геосферные исследования. 2025. № 3. С. 182-196
Language: rus

Created: 24-11-2025

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Геолого-географический факультет A geospatial analysis of land surface temperature and the surface urban heat island in Tomsk City: A study based on Landsat 8 satellite imagery