Enhancing or Restricting Natural Ventilation? An Investigation into the Influence of Urban-Lake Spatial Patterns on the Penetration of Lake Breeze Fronts in a Multi-Lake Megacity Inland Setting

Yatian Cheng, Wenbin Zhao (), Xiaoqin Nie, Xiaodi Zheng, Changguang Wu, Baiqiang Ren, Yuan Zhou, Chao Liu, Xiangchun Wang and Chao Yang
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Yatian Cheng: China Urban Construction Design & Research Institute, Beijing 100120, China
Wenbin Zhao: China Urban Construction Design & Research Institute, Beijing 100120, China
Xiaoqin Nie: China Urban Construction Design & Research Institute, Beijing 100120, China
Xiaodi Zheng: School of Architecture, Tsinghua University, Beijing 100084, China
Changguang Wu: College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
Baiqiang Ren: China Urban Construction Design & Research Institute, Beijing 100120, China
Yuan Zhou: China Urban Construction Design & Research Institute, Beijing 100120, China
Chao Liu: China Urban Construction Design & Research Institute, Beijing 100120, China
Xiangchun Wang: China Urban Construction Design & Research Institute, Beijing 100120, China
Chao Yang: China Urban Construction Design & Research Institute, Beijing 100120, China

Land, 2025, vol. 14, issue 6, 1-22

Abstract: Spatially uneven urbanization shapes various urban-lake spatial patterns; however, the effect of pattern evolution on lake breeze front (LBF) penetration via thermal and aerodynamic mechanisms in inland multi-lake megacities remains unclear. Therefore, sensitivity experiments were conducted to examine LBF changes over the past 40 years in Wuhan, China—where lakes are located on the periphery of built-up areas or integrated with urban fabrics—using the Weather Research and Forecasting (WRF) model under high-temperature and weak-wind conditions. Moreover, we quantified the contributions of thermal (lake-land surface temperature differences (LSTD), urban heat island intensity (UHII)), and aerodynamic factors (lake-land surface roughness differences (LSRD)) to LBF penetration. The results showed that for lakes entirely within urban fabrics, the thermal and roughness characteristics at lake-land interfaces dominated LBF penetration. Specifically, urban expansion towards lakeshores without connections promoted LBF penetration due to the stronger positive benefits of the LSTD. However, urban expansion bordering lakeshores inhibited LBF penetration, as the inhibitory effects of LSRD outweighed those of LSTD. When lakes remained on the periphery of built-up areas, higher UHII and the UHII-weighted center moving towards suburban lakes accelerated the LBF movement into built-up areas. Based on these findings, we propose adaptive strategies for urban growth boundaries to facilitate the natural infiltration of LBFs into urban environments.

Keywords: urban-lake spatial pattern; urban expansion; lake breeze front; penetration distance; WRF model (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2025
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