Title: Analysis of Urban Heat Island Characteristics of City Groups in Middle Liaoning Province and Their Influencing Factors
Abstract: Based on the annual average air temperature data from 1960 to 2006 from weather stations and surrounding weather stations in city groups of middle Liaoning Province including Shenyang,Anshan and Benxi,the annual and seasonal variations of urban heat island effect in city groups of middle Liaoning Province and the correlation between the urban heat island and the urban development indices such as urban population quantity and green area were analyzed.The results indicated that the urban heat island of city groups in middle Liaoning Province all showed the characteristics of the strongest heat island intensity in winter and the weakest heat island intensity in summer.But the heat island intensity in Shenyang was weakest in autumn.The annual changes of urban heat island in Shenyang City and Anshan City showed an increasing trend,with the increasing amplitude of 0.25 ℃/10 a and 0.16 ℃/10 a resp.And that in Benxi City showed a decreasing trend,with the decreasing amplitude of 0.44 ℃/10 a.The correlation between the urban heat island and the urban development indices such as urban population quantity and green area was complex.When the urban development index reached a certain threshold,the urban island intensity would be affected.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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