Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5885 |
Semi-idealized urban heat advection simulations using the Weather Research and Forecasting mesoscale model | |
Bassett, Richard1,2; Cai, Xiaoming1; Chapman, Lee1; Heaviside, Clare1,3; Thornes, John E.1,3 | |
2019-03-15 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:3页码:1345-1358 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | Urban heat advection (UHA) can extend the climatic impact of a city into the surrounding countryside. This may lead to an intensification of already well-documented urban heat island (UHI) impacts on health and infrastructure, and challenge the representativeness of long-term reference temperature records taken near urban areas. However, previous UHA studies have been unable to accurately quantify surface-level UHA due to challenges arising from complex urban land-use patterns. To address this, the numerical Weather Research and Forecasting (WRF) mesoscale model coupled with the Building Energy Parameterization urban canopy scheme is used to simulate meteorological fields for idealized land-use cases. Hypothetical square cities (up to 32 km in size) are simulated for a year's period. A time-mean 2-m temperature field (representing the canopy UHI) shows that the mean UHI intensity (up to 4.3 degrees C [SD 1.7 degrees C]), wind speed <3.9 m/s) is linearly related to the logarithm of city size. This finding, entirely derived from numerical modelling, is consistent with the log-linear relationships previously found in the observational data of many cities in the world. A UHA methodology was then applied to the temperature fields to separate UHA from the UHI, with up to 2.9 degrees C (SD 1.7 degrees C) of UHA found downwind of the largest city size. For this hypothetical city size, an UHA intensity of 0.5 degrees C is found up to 24-km downwind from the urban boundary. In addition, the UHA-distance profiles along the central horizontal transect for various urban sizes are found to follow a scaling rule as a good approximation. As a result, the findings of this paper can be used as a starting point for climate impact assessments for areas surrounding urban areas without the need for complex, computation-intensive simulations. |
英文关键词 | BEP mesoscale modelling semi-idealized urban heat advection urban heat island WRF |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461606600014 |
WOS关键词 | EMPIRICAL ESTIMATION ; ISLAND ; CLIMATE ; IMPACT ; DYNAMICS ; ATLANTA ; CITIES |
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/37407 |
专题 | 气候变化 |
作者单位 | 1.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, W Midlands, England; 2.Univ Lancaster, Lancaster Environm Ctr, Lancaster, England; 3.Publ Hlth England, Chem & Environm Effects Dept, Ctr Radiat Chem & Environm Hazards, Didcot, Oxon, England |
推荐引用方式 GB/T 7714 | Bassett, Richard,Cai, Xiaoming,Chapman, Lee,et al. Semi-idealized urban heat advection simulations using the Weather Research and Forecasting mesoscale model[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(3):1345-1358. |
APA | Bassett, Richard,Cai, Xiaoming,Chapman, Lee,Heaviside, Clare,&Thornes, John E..(2019).Semi-idealized urban heat advection simulations using the Weather Research and Forecasting mesoscale model.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(3),1345-1358. |
MLA | Bassett, Richard,et al."Semi-idealized urban heat advection simulations using the Weather Research and Forecasting mesoscale model".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.3(2019):1345-1358. |
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