| id |
caadria2023_329 |
| authors |
Hao, Xinyuan and Tong, Ziyu |
| year |
2023 |
| title |
Identifying the Effect of Wind Condition on Canopy Urban Heat Island: A Case Study in Nanjing |
| source |
Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 623–632 |
| doi |
https://doi.org/10.52842/conf.caadria.2023.2.623
|
| summary |
The canopy urban heat island (CUHI) stands for the phenomenon where the air temperature in an urban area is significantly higher than in a suburban area. Identifying CUHIs and their pattern can improve the health and comfort of urban residents. However, previous studies have focused more on surface urban heat island (SUHI) yet lacking a proper quantification tool for canopy heat islands. This study integrates local climate zone (LCZ), urban form classification data, and anthropogenic heat to quantify the canopy temperature, so as to analyze the distribution of CUHIs as well as the relation with wind condition. The case study of Nanjing selects the weather data representing days with different wind directions, uses WRF to simulate local air temperatures and wind speeds and directions, and analyses the influence of wind on CUHI through comparison. The results show that: 1) in the case of Nanjing, wind direction within 50-90° increases CUHI and leads to a continuous rise in air temperature; 2) when the wind direction falls in some specific ranges, the overall CUHI area significantly shrinks. In short, this paper shows how wind condition affects CUHI, which contributes to predicting CUHI and reducing the risk of heat exposure to urban populations, and provides guidance for urban management and design. |
| keywords |
Canopy urban heat island (CUHI), wind condition, weather research and forecasting (WRF), local climate zone (LCZ) |
| series |
CAADRIA |
| email |
|
| full text |
 file.pdf (9,250,042 bytes) |
| references |
Content-type: text/plain
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| last changed |
2023/06/15 23:14 |
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