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- Publisher Website: 10.1029/2022JD038210
- Scopus: eid_2-s2.0-85174453297
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Article: Study of Urban Thermal Environment and Local Circulations of Guangdong-Hong Kong-Macao Greater Bay Area Using WRF and Local Climate Zones
Title | Study of Urban Thermal Environment and Local Circulations of Guangdong-Hong Kong-Macao Greater Bay Area Using WRF and Local Climate Zones |
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Authors | |
Keywords | energy balance heat wave sea/land breezes urban canopy model urban heat island |
Issue Date | 27-Oct-2023 |
Publisher | American Geophysical Union |
Citation | Journal of Geophysical Research: Atmospheres, 2023, v. 128, n. 20 How to Cite? |
Abstract | The Guangdong-Hong Kong-Macao Greater Bay Area (GBA), a cluster of world-class cities, is undergoing rapid urbanization. However, the heterogeneity of the urban thermal environment resulting from the diversity of urban forms is not yet fully understood. This paper assesses the heterogeneity of the urban heat island (UHI) effect in the GBA using the coupled Weather Research and Forecasting (WRF) model/multi-layer urban canopy and building energy model (BEP/BEM), with high-resolution local climate zone (LCZ) map as urban land use/land cover data. The average UHI intensity is found to peak at 1.8 ± 0.4°C in the evening, when the average UHI intensity of LCZ 2 can reach a maximum of 2.4 ± 0.58°C. Properly setting air-conditioning temperatures can effectively prevent the enhancement of the UHI phenomenon at night by the anthropogenic heat (AH) released from air-conditioning. The UHI-induced local circulations and enhanced surface roughness inhibit the penetration of sea breezes inland, and surface wind speed decreases in all LCZs, with a maximum change of more than 0.8 m s−1. However, the increased thermal difference between land and sea leads to enhanced sea breezes offshore, especially in the Pearl River estuary. In addition, a series of sensitivity experiments have been conducted in this paper on initial and boundary conditions, building drag coefficients and urban fractions, which paves the way for further analyzing urban climate in GBA using WRF model and LCZs. |
Persistent Identifier | http://hdl.handle.net/10722/339914 |
ISSN | 2023 Impact Factor: 3.8 2023 SCImago Journal Rankings: 1.710 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Xin, Rui | - |
dc.contributor.author | Li, Xian-Xiang | - |
dc.contributor.author | Shi, Yurong, Li, Lei | - |
dc.contributor.author | Zhang, Yuejuan | - |
dc.contributor.author | Liu, Chun-Ho | - |
dc.contributor.author | Dai, Yongjiu | - |
dc.date.accessioned | 2024-03-11T10:40:17Z | - |
dc.date.available | 2024-03-11T10:40:17Z | - |
dc.date.issued | 2023-10-27 | - |
dc.identifier.citation | Journal of Geophysical Research: Atmospheres, 2023, v. 128, n. 20 | - |
dc.identifier.issn | 2169-897X | - |
dc.identifier.uri | http://hdl.handle.net/10722/339914 | - |
dc.description.abstract | <p>The Guangdong-Hong Kong-Macao Greater Bay Area (GBA), a cluster of world-class cities, is undergoing rapid urbanization. However, the heterogeneity of the urban thermal environment resulting from the diversity of urban forms is not yet fully understood. This paper assesses the heterogeneity of the urban heat island (UHI) effect in the GBA using the coupled Weather Research and Forecasting (WRF) model/multi-layer urban canopy and building energy model (BEP/BEM), with high-resolution local climate zone (LCZ) map as urban land use/land cover data. The average UHI intensity is found to peak at 1.8 ± 0.4°C in the evening, when the average UHI intensity of LCZ 2 can reach a maximum of 2.4 ± 0.58°C. Properly setting air-conditioning temperatures can effectively prevent the enhancement of the UHI phenomenon at night by the anthropogenic heat (AH) released from air-conditioning. The UHI-induced local circulations and enhanced surface roughness inhibit the penetration of sea breezes inland, and surface wind speed decreases in all LCZs, with a maximum change of more than 0.8 m s<sup>−1</sup>. However, the increased thermal difference between land and sea leads to enhanced sea breezes offshore, especially in the Pearl River estuary. In addition, a series of sensitivity experiments have been conducted in this paper on initial and boundary conditions, building drag coefficients and urban fractions, which paves the way for further analyzing urban climate in GBA using WRF model and LCZs.<br></p> | - |
dc.language | eng | - |
dc.publisher | American Geophysical Union | - |
dc.relation.ispartof | Journal of Geophysical Research: Atmospheres | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | energy balance | - |
dc.subject | heat wave | - |
dc.subject | sea/land breezes | - |
dc.subject | urban canopy model | - |
dc.subject | urban heat island | - |
dc.title | Study of Urban Thermal Environment and Local Circulations of Guangdong-Hong Kong-Macao Greater Bay Area Using WRF and Local Climate Zones | - |
dc.type | Article | - |
dc.identifier.doi | 10.1029/2022JD038210 | - |
dc.identifier.scopus | eid_2-s2.0-85174453297 | - |
dc.identifier.volume | 128 | - |
dc.identifier.issue | 20 | - |
dc.identifier.eissn | 2169-8996 | - |
dc.identifier.isi | WOS:001084774800001 | - |
dc.identifier.issnl | 2169-897X | - |