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Open AccessArticle

Examining the Impact of Greenspace Patterns on Land Surface Temperature by Coupling LiDAR Data with a CFD Model

by 1,*, 2,†, 2,† and 1,3
1
State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, No. 73 East Beijing Road, Nanjing 210008, China
2
School of Earth Sciences and Engineering, Hohai University, No. 1 Xikang Road, Nanjing 210098, China
3
University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Sustainability 2014, 6(10), 6799-6814; https://doi.org/10.3390/su6106799
Received: 10 July 2014 / Revised: 18 September 2014 / Accepted: 22 September 2014 / Published: 30 September 2014
(This article belongs to the Special Issue Landscape and Sustainability)
Understanding the link between greenspace patterns and land surface temperature is very important for mitigating the urban heat island (UHI) effect and is also useful for planners and decision-makers for providing a sustainable design for urban greenspace. Although coupling remote sensing data with a computational fluid dynamics (CFD) model has widely been used to examine interactions between UHI and greenspace patterns, the paper aims to examine the impact of five theoretical models of greenspace patterns on land surface temperature based on the improvement of the accuracy of CFD modeling by the combination of LiDAR data with remote sensing images to build a 3D urban model. The simulated results demonstrated that the zonal pattern always had the obvious cooling effects when there are no large buildings or terrain obstacles. For ambient environments, the building or terrain obstacles and the type of greenspace have the hugest influence on mitigating the UHI, but the greenspace area behaves as having the least cooling effect. A dotted greenspace pattern shows the best cooling effect in the central area or residential district within a city, while a radial and a wedge pattern may result in a “cold source” for the urban thermal environment. View Full-Text
Keywords: greenspace patterns; land surface temperature; urban heat island (UHI); computational fluid dynamics (CFD) model; LiDAR data greenspace patterns; land surface temperature; urban heat island (UHI); computational fluid dynamics (CFD) model; LiDAR data
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MDPI and ACS Style

Su, W.; Zhang, Y.; Yang, Y.; Ye, G. Examining the Impact of Greenspace Patterns on Land Surface Temperature by Coupling LiDAR Data with a CFD Model. Sustainability 2014, 6, 6799-6814. https://doi.org/10.3390/su6106799

AMA Style

Su W, Zhang Y, Yang Y, Ye G. Examining the Impact of Greenspace Patterns on Land Surface Temperature by Coupling LiDAR Data with a CFD Model. Sustainability. 2014; 6(10):6799-6814. https://doi.org/10.3390/su6106799

Chicago/Turabian Style

Su, Weizhong; Zhang, Yong; Yang, Yingbao; Ye, Gaobin. 2014. "Examining the Impact of Greenspace Patterns on Land Surface Temperature by Coupling LiDAR Data with a CFD Model" Sustainability 6, no. 10: 6799-6814. https://doi.org/10.3390/su6106799

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