Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026690 |
Interaction of Urban Heating and Local Winds During the Calm Intermonsoon Seasons in the Tropics | |
Ooi, M. C. G.1; Chan, A.1; Subramaniam, K.2; Morris, K. I.1,3,4; Oozeer, M. Y.1 | |
2017-11-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:21 |
文章类型 | Article |
语种 | 英语 |
国家 | Malaysia; Nigeria; Ghana |
英文摘要 | Rapid urbanization of cities has greatly modified the thermal and dynamic profile in the urban boundary layer. This paper attempts to study the interaction of urban heating and the local topographic-induced flow circulation for a tropical coastal city, Greater Kuala Lumpur, in Malaysia. The role of sea-and-valley-breeze-orientated synoptic flow (SBOS) on the interaction is determined by comparing two intermonsoon periods. A state-of-the-art numerical model, Advanced Research Weather Research and Forecasting model, is used to identify the influence of urbanization through modification of urban surfaces. The model reasonably reproduces the vertical sounding data and near-surface weather parameters. The diurnal urban heating pattern is attributed to three predominant factors: (i) weak under calm and clear-sky condition (morning heating), (ii) weak under larger atmospheric moisture content (late afternoon convection), and (iii) largest (1.4 degrees C) due to differential cooling rate of urban and rural surface at night. The interaction of urban thermals and upper level SBOS affects the effect of urbanization on local circulation during the day. The urban thermals reduce the weak opposing SBOS (< 2 ms(-1)) and enhance the inflow of moisture-rich sea breeze passage. This increases the intensity of downwind convective precipitation during late afternoon. On contrary, the strong opposing SBOS (> 2 ms(-1)) suppresses the vertical lifting of urban thermals and decelerates the sea breeze front. It is discovered that the interaction of urban heating and topographic-induced flow is interdependent while the synoptic flow plays a critical role in modifying both factors, respectively. |
英文关键词 | urban heating urban boundary layer synoptic influence tropics WRF-ARW |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417195500008 |
WOS关键词 | SEA-BREEZE FRONT ; BOUNDARY-LAYER STRUCTURES ; ASIAN SUMMER MONSOON ; MARITIME CONTINENT ; DIURNAL CYCLE ; METROPOLITAN-AREA ; BULK PARAMETERIZATION ; NUMERICAL SIMULATIONS ; SYNOPTIC CONDITIONS ; ISLAND DEVELOPMENT |
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/32604 |
专题 | 气候变化 |
作者单位 | 1.Univ Nottingham, Fac Engn, Div Environm, Malaysia Campus, Semenyih, Malaysia; 2.Malaysian Meteorol Dept, Climate & Weather Model Dev Sect, Petaling Jaya, Malaysia; 3.Ctr Excellence Sustainable Innovat & Res Initiat, Port Harcourt, Nigeria; 4.Ashesi Univ Coll, Dept Mech Engn, Berekuso, Ghana |
推荐引用方式 GB/T 7714 | Ooi, M. C. G.,Chan, A.,Subramaniam, K.,et al. Interaction of Urban Heating and Local Winds During the Calm Intermonsoon Seasons in the Tropics[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(21). |
APA | Ooi, M. C. G.,Chan, A.,Subramaniam, K.,Morris, K. I.,&Oozeer, M. Y..(2017).Interaction of Urban Heating and Local Winds During the Calm Intermonsoon Seasons in the Tropics.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(21). |
MLA | Ooi, M. C. G.,et al."Interaction of Urban Heating and Local Winds During the Calm Intermonsoon Seasons in the Tropics".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.21(2017). |
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