نتایج جستجو برای: urban heat island

تعداد نتایج: 422403  

Journal: :Journal of environmental management 2004
Qihao Weng Shihong Yang

Guangzhou city in South China has experienced an accelerated urban development since the 1980s. This paper examines the impact of the urban development on urban heat islands through a historical analysis of urban-rural air temperature differences. Remote sensing techniques were applied to derive information on land use/cover and land surface temperatures and to assess the thermal response patte...

2016
Chang Cao Xuhui Lee Shoudong Liu Natalie Schultz Wei Xiao Mi Zhang Lei Zhao

The urban heat island (UHI), the phenomenon of higher temperatures in urban land than the surrounding rural land, is commonly attributed to changes in biophysical properties of the land surface associated with urbanization. Here we provide evidence for a long-held hypothesis that the biogeochemical effect of urban aerosol or haze pollution is also a contributor to the UHI. Our results are based...

2017
Zhi-Hua Wang Qi Li

Nocturnal cooling of urban areas governs the evolution of thermal state and many thermal-driven environmental issues in cities, especially those suffer strong urban heat island (UHI) effect. Advances in the fundamental understanding of the underlying physics of nighttime UHI involve disentangling complex contributing effects and remains an open challenge. In this study, we develop new numerical...

Journal: :International Journal of Environmental Protection and Policy 2013

Journal: :Acta climatologica et chorologica 2020

Journal: :Remote Sensing 2016
Hicham Bahi Hassan Rhinane Ahmed Bensalmia Ute Fehrenbach Dieter Scherer

The urban heat island (UHI) phenomenon is a harmful environmental problem in urban areas affecting both climatic and ecological processes. This paper aims to highlight and monitor the spatial distribution of Surface UHI (SUHI) in the Casablanca region, Morocco, using remote sensing data. To achieve this goal, a time series of Landsat TM/ETM+/OLI-TIRS images was acquired from 1984 to 2016 and an...

2010
Qihao Weng

Remotely sensed imagery has been increasingly used to study the urban heat island phenomenon by deriving and analyzing land surface temperatures. The technology of remote sensing has the advantage of providing a time-synchronized dense grid of temperature data over a whole city region and distinctive temperature measurements for individual buildings. Moreover, some remote sensing images have hi...

Journal: :ISPRS Int. J. Geo-Information 2016
Tongliga Bao Xueming Li Jing Zhang Yingjia Zhang Shenzhen Tian

An essential part of urban natural systems, urban green spaces play a crucial role in mitigating the urban heat island effect (UHI). The UHI effect refers to the phenomenon where the temperature within a city is higher than that of the surrounding rural areas. The effects of the spatial composition and configuration of urban green spaces on urban land surface temperature (LST) have recently bee...

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