Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026702 |
Impact of land surface heterogeneity on urban heat island circulation and sea-land breeze circulation in Hong Kong | |
Wang, Y.1,2; Di Sabatino, S.2; Martilli, A.3; Li, Y.1; Wong, M. S.4; Gutierrez, E.5; Chan, P. W.6 | |
2017-04-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Italy; Spain; USA |
英文摘要 | Hong Kong is one of the most high-rise and highly compact cities in the world. The urban land surface is highly heterogeneous, which creates low-level convergence zones in urban areas, particularly the Kowloon Peninsula. The low-level convergence zone is due to the combined effect of urban heat island circulation (UHIC) and sea-land breeze circulation (SLBC) under weak northeasterly synoptic flow. To study the impacts of anthropogenic fluxes and built-up areas on the local circulation, the Weather Research and Forecasting (WRF) mesoscale model is combined with the multilayer urban canopy building effect parameterization/building energy model (BEP/BEM) parameterization to produce a 3day simulation of an air pollution episode in Hong Kong in September 2012. To better represent the city land surface features, building information is assimilated in the central part of the Kowloon Peninsula. The WRF-BEP-BEM model captures the 2m temperature distribution and local wind rotation reasonably well but overestimates the 10m wind speed with a mean bias error of 0.70m/s. A dome-shaped feature with a high level of moisture is captured in the convergence zones due to intensified UHIC and inflowing SLBC. The anthropogenic heat increases the air temperature by around 0.3 degrees C up to 250m, which in turn modifies the SLBC. A new drag coefficient based on lambda(P), plan area per unit ground area, is tested. Besides the basic physical characteristics captured by the WRF-BEP-BEM model, the stagnation of wind in the lower level convergence zone is better captured by this approach than by the traditional constant value coefficient. |
英文关键词 | WRF UCM modeling system urban heat island circulation sea-land breeze circulation Hong Kong air pollution |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401180800012 |
WOS关键词 | BOUNDARY-LAYER ; ATMOSPHERIC MODELS ; METROPOLITAN-AREA ; MESOSCALE MODELS ; CANOPY MODEL ; SINGLE-LAYER ; PART I ; CITY ; PARAMETERIZATION ; CLIMATE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33415 |
专题 | 气候变化 |
作者单位 | 1.Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China; 2.Univ Bologna, Dept Phys & Astron Alma Mater Studiorum, Bologna, Italy; 3.Ctr Invest Energet Medioambientales & Tecnol, Madrid, Spain; 4.Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong, Hong Kong, Peoples R China; 5.CUNY City Coll, Dept Mech Engn, New York, NY USA; 6.Hong Kong Observ, Hong Kong, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Y.,Di Sabatino, S.,Martilli, A.,et al. Impact of land surface heterogeneity on urban heat island circulation and sea-land breeze circulation in Hong Kong[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(8). |
APA | Wang, Y..,Di Sabatino, S..,Martilli, A..,Li, Y..,Wong, M. S..,...&Chan, P. W..(2017).Impact of land surface heterogeneity on urban heat island circulation and sea-land breeze circulation in Hong Kong.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(8). |
MLA | Wang, Y.,et al."Impact of land surface heterogeneity on urban heat island circulation and sea-land breeze circulation in Hong Kong".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.8(2017). |
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