Machine Learning-Based Downscaling of Urban Air Temperature Using Lidar Data DOI

Fatemeh Chajaei,

Hossein Bagheri

Published: Jan. 1, 2023

Climate models typically provide air temperature estimates at lower resolutions, lacking the necessary details for urban climate studies. These require significant computational resources and time to estimate temperatures higher resolution, which are not easily accessible city scale. In contrast, data-driven approaches offer accuracy speed in downscaling. this study, a framework downscaling derived from such as UrbClim was developed. The proposed utilized morphological features extracted LiDAR data. To extract features, first three-dimensional building model created using data deep learning models. Then, these were integrated with meteorological parameters wind, humidity, etc., downscale machine algorithms. results demonstrated that developed effectively Deep algorithms played crucial role generating extracting aforementioned features. Also, evaluation of various indicated LightGBM had best performance an RMSE 0.352°K MAE 0.215°K. Furthermore, examination final maps showed successfully estimated enabling identification local patterns street level. source codes corresponding research paper available on GitHub via https://github.com/FatemehCh97/Air-Temperature-Downscaling

Language: Английский

Thermal Impact of Hard and Soft Surfaces in Landscape Design of a University Campus: A Case Study DOI Creative Commons

Elnaz Tajer,

Beyza ŞAT GÜNGÖR

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: May 7, 2024

Abstract Campus areas as a microcosm of urban areas; given the context global warming, are becoming more vulnerable to rising temperatures. This study focuses on outdoor environment and microclimate effects Ozyegin campus by considering surface plantation types. Urban green spaces offer potential solution lowering air temperatures through shading evapotranspiration. The selection appropriate plant types is crucial for effective temperature reduction, leaves act barriers solar radiation. Measurements were conducted in November–December 2023 at 15 designated points campus. measurements especially autumn diffuse daylight prevent effect direct radiation high difference trees. research seeks address fundamental questions about how different surfaces, both hard soft, influence thermal conditions, explore university campuses, strategies improvement. Employing comprehensive field surveys data analysis, including statistical techniques like ANOVA, Bonferroni post-hoc test, reveals under broad-leaved trees 1.5 degrees cooler than surfaces. With practical objective, aims measure conditions make recommendations creating comfortable environments.

Language: Английский

Citations

0

Analysing the Spatio-Temporal Variations of Urban Street Summer Solar Radiation through Historical Street View Images: A Case Study of Shanghai, China DOI Creative Commons
Lei Wang, Longhao Zhang, Jie He

et al.

ISPRS International Journal of Geo-Information, Journal Year: 2024, Volume and Issue: 13(6), P. 190 - 190

Published: June 7, 2024

Understanding solar radiation in urban street spaces is crucial for comprehending residents’ environmental experiences and enhancing their quality of life. However, existing studies rarely focus on the patterns over time across different suburban areas. In this study, view images from summers 2013 2019 Shanghai were used to calculate spaces. The results show a general decrease compared 2013, with an average drop 12.34%. was most significant October (13.47%) least May (11.71%). terms data gathered sampling points, 76.57% showed decrease, while 23.43% increase. Spatially, decreased by 79.66% every additional 1.5 km city centre. summary, generally shows decreasing trend, variations between These findings are vitally important guiding planning, optimising green infrastructure, ecological environment, further promoting sustainable development improving

Language: Английский

Citations

0

Building information modeling applied to daylight dynamic simulation from the perspective of future and urban climate: A case study in Brazil DOI

Michelli Gonçalves Michelon,

Greici Ramos,

Majid Miri

et al.

Solar Energy, Journal Year: 2024, Volume and Issue: 279, P. 112816 - 112816

Published: Aug. 9, 2024

Language: Английский

Citations

0

Heatwave Responses: Mitigation DOI
Glenn R. McGregor

Springer eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 601 - 655

Published: Jan. 1, 2024

Language: Английский

Citations

0

Thermal performance of buildings and pavements materials in semi-arid regions DOI

Zeinab Raad Mahdi

AIP conference proceedings, Journal Year: 2024, Volume and Issue: 3249, P. 020003 - 020003

Published: Jan. 1, 2024

Language: Английский

Citations

0

Machine Learning-Based Downscaling of Urban Air Temperature Using Lidar Data DOI

Fatemeh Chajaei,

Hossein Bagheri

Published: Jan. 1, 2023

Climate models typically provide air temperature estimates at lower resolutions, lacking the necessary details for urban climate studies. These require significant computational resources and time to estimate temperatures higher resolution, which are not easily accessible city scale. In contrast, data-driven approaches offer accuracy speed in downscaling. this study, a framework downscaling derived from such as UrbClim was developed. The proposed utilized morphological features extracted LiDAR data. To extract features, first three-dimensional building model created using data deep learning models. Then, these were integrated with meteorological parameters wind, humidity, etc., downscale machine algorithms. results demonstrated that developed effectively Deep algorithms played crucial role generating extracting aforementioned features. Also, evaluation of various indicated LightGBM had best performance an RMSE 0.352°K MAE 0.215°K. Furthermore, examination final maps showed successfully estimated enabling identification local patterns street level. source codes corresponding research paper available on GitHub via https://github.com/FatemehCh97/Air-Temperature-Downscaling

Language: Английский

Citations

0