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A platform for research: civil engineering, architecture and urbanism
Response of summer Land surface temperature of small and medium-sized cities to their neighboring urban spatial morphology
https://orcid.org/0009-0003-2606-0132
Abstract Buildings, hard surfaces, vegetation, and water bodies are the four main urban surface types in the study region that are categorized in this study. It uses summer land surface temperature (LST)1 data obtained with a spatial resolution of 1 × 1 m using thermal imaging mounted on a drone, with a case study centering on a small to medium-sized Chinese town. To assess urban spatial morphology indicators within different ranges around the sample sites, buffer zones at 30 m, 50 m, 100 m, and 150 m were developed. The study determined the effective response range, identified the important urban spatial morphology indicators influencing LST, and examined the link between summer LST and various urban spatial morphologies for the four surface types. The results show that, close to the sample locations, Natural Environment Indicators (NEI) often have a cooling effect whereas Building Indicators (BI) typically have a warming effect. The influence of spatial morphologies on summer LST was primarily centered between 30 m and 50 m from the sample sites. The primary spatial morphological indicators determining LST for various underlying surface types within various spatial ranges are the building structure index (BSI) and water surface rate (WP). The response modes, response ranges, and response intensities of LST, however, varied significantly among various underlying surface types. This work provides new insights into how urban morphological characteristics affect the fine-scale spatial variation of LST within urban heat islands (UHI).
Highlights Different types of surface LSTs are affected differently by spatial morphology. In all sites, ABI warms LST, while NEI cools it. While NEI generally cools, some surface types are warm. Spatial morphologies mainly impacted LST within 30 m–50 m.
Response of summer Land surface temperature of small and medium-sized cities to their neighboring urban spatial morphology
https://orcid.org/0009-0003-2606-0132
Abstract Buildings, hard surfaces, vegetation, and water bodies are the four main urban surface types in the study region that are categorized in this study. It uses summer land surface temperature (LST)1 data obtained with a spatial resolution of 1 × 1 m using thermal imaging mounted on a drone, with a case study centering on a small to medium-sized Chinese town. To assess urban spatial morphology indicators within different ranges around the sample sites, buffer zones at 30 m, 50 m, 100 m, and 150 m were developed. The study determined the effective response range, identified the important urban spatial morphology indicators influencing LST, and examined the link between summer LST and various urban spatial morphologies for the four surface types. The results show that, close to the sample locations, Natural Environment Indicators (NEI) often have a cooling effect whereas Building Indicators (BI) typically have a warming effect. The influence of spatial morphologies on summer LST was primarily centered between 30 m and 50 m from the sample sites. The primary spatial morphological indicators determining LST for various underlying surface types within various spatial ranges are the building structure index (BSI) and water surface rate (WP). The response modes, response ranges, and response intensities of LST, however, varied significantly among various underlying surface types. This work provides new insights into how urban morphological characteristics affect the fine-scale spatial variation of LST within urban heat islands (UHI).
Highlights Different types of surface LSTs are affected differently by spatial morphology. In all sites, ABI warms LST, while NEI cools it. While NEI generally cools, some surface types are warm. Spatial morphologies mainly impacted LST within 30 m–50 m.
Response of summer Land surface temperature of small and medium-sized cities to their neighboring urban spatial morphology
https://orcid.org/0009-0003-2606-0132
Abstract Buildings, hard surfaces, vegetation, and water bodies are the four main urban surface types in the study region that are categorized in this study. It uses summer land surface temperature (LST)1 data obtained with a spatial resolution of 1 × 1 m using thermal imaging mounted on a drone, with a case study centering on a small to medium-sized Chinese town. To assess urban spatial morphology indicators within different ranges around the sample sites, buffer zones at 30 m, 50 m, 100 m, and 150 m were developed. The study determined the effective response range, identified the important urban spatial morphology indicators influencing LST, and examined the link between summer LST and various urban spatial morphologies for the four surface types. The results show that, close to the sample locations, Natural Environment Indicators (NEI) often have a cooling effect whereas Building Indicators (BI) typically have a warming effect. The influence of spatial morphologies on summer LST was primarily centered between 30 m and 50 m from the sample sites. The primary spatial morphological indicators determining LST for various underlying surface types within various spatial ranges are the building structure index (BSI) and water surface rate (WP). The response modes, response ranges, and response intensities of LST, however, varied significantly among various underlying surface types. This work provides new insights into how urban morphological characteristics affect the fine-scale spatial variation of LST within urban heat islands (UHI).
Highlights Different types of surface LSTs are affected differently by spatial morphology. In all sites, ABI warms LST, while NEI cools it. While NEI generally cools, some surface types are warm. Spatial morphologies mainly impacted LST within 30 m–50 m.
Response of summer Land surface temperature of small and medium-sized cities to their neighboring urban spatial morphology
Luo, Tao (author) / He, Qianqian (author) / Wang, Wenkui (author) / Fan, Xiaoli (author)
Building and Environment ; 250
2024-01-11
Article (Journal)
Electronic Resource
English
Thermal environment , Urban underlying surface , Influence range , UAV thermal infrared , Yangtze River delta , (LST) , Land surface temperature , (BI) , The indicators of buildings , (NEI) , The indicators of the natural environment , (BSI) , Building structure index , (WP) , Water surface rate , (UHI) , Urban heat island
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