How much has urbanisation affected United Kingdom temperatures?
How much has urbanisation affected United Kingdom temperatures?
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DOI：
10.1002/asl.896
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发表时间：
2019-03
影响因子：
3
通讯作者：
Ian L. M. Goddard;S. Tett
中科院分区：
文献类型：
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作者：
Ian L. M. Goddard;S. Tett
本研究旨在评估城市化对英国每日最高和最低气温的影响。计算了气象站周围10 km × 10 km区域的城市比例。使用稳健回归，估计了城市分数与站点测量值和ERA-中期再分析温度之间的温差之间的线性关系。对于1.0的城市分数，日最低2米温度估计增加1.90 ± 0.88 K，而日最高温度没有受到城市化的显著影响。然后将这一结果应用于整个英国，伦敦的最大T min城市热岛强度（UHII）约为1.7 K，许多英国城市的T min UHII高于一度。
This study aims to estimate the affect of urbanisation on daily maximum and minimum temperatures in the United Kingdom. Urban fractions were calculated for 10 km × 10 km areas surrounding meteorological weather stations. Using robust regression a linear relationship between urban fraction and temperature difference between station measurements and ERA‐Interim reanalysis temperatures was estimated. For an urban fraction of 1.0, the daily minimum 2‐m temperature was estimated to increase by 1.90 ± 0.88 K while the daily maximum temperature was not significantly affected by urbanisation. This result was then applied to the whole United Kingdom with a maximum T min urban heat island intensity (UHII) of about 1.7K in London and with many UK cities having T min UHIIs above one degree.