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Effects of landscape composition and patterns on land surface temperature: Urban heat island case study for Nigde, Turkey
Urban Climate ( IF 6.0 ) Pub Date : 2020-08-19 , DOI: 10.1016/j.uclim.2020.100688
Orhun Soydan

The urban climate has been disrupted with increasing urbanisation and consumption concepts, revealing climatic properties that affect human comfort conditions as a result of climate change. Decreasing vegetation and evaporative surfaces in cities, and increasing structural surfaces, such as concrete and asphalt, alter the topography, ecological structure, and atmospheric characteristics of nature, creating a different ecology and atmosphere. In this study, the relationship between the land surface temperatures (LSTs) of green and impervious surfaces was examined in Nigde, Turkey. Various satellite images were used, and statistical and geographical analyses were conducted. The results revealed that the LST values changed with the changing ratio of impervious and green surfaces, and have increased in Nigde over the past three decades even though the amount of green surfaces have increased. Furthermore, the LSTs of the impervious surfaces are 5–10 °C higher than that of the green surfaces. A correlation analysis showed that there was a significant difference in the LST values between green and impervious surfaces. Impervious surfaces contribute to the formation of the urban heat islands (UHIs), and green surfaces provide a cooling effect. Thus, increasing the amount of green surfaces in cities is crucial to improve urban life quality.



中文翻译:

景观组成和格局对地表温度的影响:土耳其尼格德的城市热岛案例研究

随着越来越多的城市化和消费观念的出现,城市气候受到了破坏,揭示了由于气候变化而影响人类舒适条件的气候特性。城市中植被和蒸发表面的减少,以及混凝土和沥青等结构表面的增加,改变了地形,生态结构和自然界的大气特征,创造了不同的生态和气氛。在这项研究中,在土耳其尼格德研究了绿色和不透水表面的陆地表面温度(LSTs)之间的关系。使用了各种卫星图像,并进行了统计和地理分析。结果表明,LST值随不透水表面和生坯表面比率的变化而变化,尽管绿色表面的数量有所增加,但在过去的三十年中,尼格德的数量有所增加。此外,不渗透表面的LST比绿色表面的LST高5-10°C。相关分析表明,绿色和不透水表面之间的LST值存在显着差异。不可渗透的表面有助于形成城市热岛(UHI),绿色表面可起到降温作用。因此,增加城市绿色表面的数量对于改善城市生活质量至关重要。不可渗透的表面有助于形成城市热岛(UHI),绿色表面可起到降温作用。因此,增加城市的绿色表面数量对于改善城市生活质量至关重要。不可渗透的表面有助于形成城市热岛(UHI),绿色表面可提供冷却效果。因此,增加城市绿色表面的数量对于改善城市生活质量至关重要。

更新日期:2020-08-19
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