Title | Analysis of Spatio-temporal patterns and related factors of thermal comfort in subtropical coastal cities based on local climate zones |
Authors | Wu, Jiansheng Liu, Chang Wang, Hongliang |
Affiliation | Peking Univ, Sch Urban Planning & Design, Key Lab Urban Habitat Environm Sci & Technol, Shenzhen 518055, Peoples R China Peking Univ, Coll Urban & Environm Sci, Lab Earth Surface Proc Minist, Beijing 100871, Peoples R China Inner Mongolia Univ, Sch Publ Adm, Hohhot 010070, Peoples R China |
Keywords | URBAN HEAT-ISLAND LAND-SURFACE TEMPERATURE HUMID CLIMATE HOT INTERPOLATION ADAPTATION INDEX VARIABILITY DENSITY COLOMBO |
Issue Date | Jan-2022 |
Publisher | BUILDING AND ENVIRONMENT |
Abstract | "Local Climate Zone " (LCZ) is a land classification scheme for urban thermal environment, combined with the "Universal Thermal Climate Index " (UTCI) indicator that characterizes human perception of the thermal environment, which can effectively reflect human perception of the thermal environment. In order to evaluate the thermal comfort of Shenzhen in 2020, the hourly data of 65 weather stations covering 11 LCZ types are used to calculate UTCI, which is used to analyze the temporal and spatial patterns of thermal comfort and related factors. The results show that the thermal comfort of 11 types of LCZ in Shenzhen all year round conforms to the characteristics of Shenzhen's subtropical monsoon climate. The 11 types of LCZ thermal comfort are higher at night than during the day. The thermal comfort of different LCZ types is statistically significantly different. The "Built type " LCZ has a higher thermal comfort value than the "Land cover type " LCZ, and the time in the thermal level is longer. Summer thermal comfort in Shenzhen was found to be positively correlated with building surface fraction, building height, street aspect ratio, and distance to the sea, and negatively correlated with sky view factor and pervious surface fraction. In addition, the summer sea breeze has a cooling effect on the thermal comfort of the entire Shenzhen area, and the barrier-free ventilation corridor can observe a better cooling effect. The research results of this paper can provide reference for improving the thermal comfort in Shenzhen. |
URI | http://hdl.handle.net/20.500.11897/642080 |
ISSN | 0360-1323 |
DOI | 10.1016/j.buildenv.2021.108568 |
Indexed | EI SSCI |
Appears in Collections: | 城市规划与设计学院 城市与环境学院 地表过程分析与模拟教育部重点实验室 |