The London Heat Island: results from summertime monitoring
The London Heat Island: results from summertime monitoring
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伦敦热岛：夏季监测结果
DOI：
10.1191/0143624402bt031oa
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发表时间：
2002
影响因子：
1.7
通讯作者：
P. Littlefair
中科院分区：
文献类型：
--
作者：
R. Watkins;J. Palmer;M. Kolokotroni;P. Littlefair
本文报道了一项调查伦敦气温变化的研究结果。本文重点介绍了1999年夏季的气温观测情况，并对观测结果进行了分析。伦敦热岛的强度已经使用68个站点的径向网格记录同时每小时的空气温度进行了评估。城市热岛主要表现为夜间现象，有时强度可达7 K。研究发现，热量中心位于伦敦市，其特征是高层建筑和高人为热排放。伦敦的夜间温度分布趋于遵循一个简单的模式，其轮廓围绕中心大致呈圆形排列;发现伦敦夜间平均温度的方差的77%与距热力中心的距离有关。白天更复杂的模式排除了这种简单的关系。
This paper reports results from a study investigating the variation of air temperature across London. The paper focuses on the description of temperature measurements in summer 1999 and the analysis of the results. The intensity of the London Heat Island has been assessed using a radial grid of 68 stations recording simultaneous hourly air temperatures. The urban heat island has been found to be predominantly a nocturnal phenomenon and its intensity reaches 7 K on occasion. It was found that the thermal centre is in the City of London which is characterized by tall buildings and high anthropogenic heat emissions. The nighttime temperature pro” le of London tends to follow a simple pattern with contours arranged roughly circularly around the centre; it is found that 77% of the variance of the mean night-time temperature across London is related to distance from the thermal centre. The more complicated pattern in the daytime precludes such a simple relationship.