Results 1 to 10 of about 2,442 (162)

Atmospheric Impacts on Daytime Urban Heat Island [PDF]

Air, Soil and Water Research, 2018
Daytime urban heat island effects can be weak compared to night time and even reversed (as in the case of cool islands, where urban locations display lower temperatures than at a rural site), mostly due to shading effects from buildings, vegetation, and ...
Eduardo Krüger, Patricia Drach, Rohinton Emmanuel   +2 more
doaj   +2 more sources

An Assessment of the Impact of Overdevelopment RightsSales on the Skyline of Khoy City Using Sky View Factor (SVF) Analysis [PDF]

صفه
With the country'saccelerating urbanisation, we are witnessing expansions and increasing new constructions in Iranian cities. One of the challenges raised in today's cities is the inability of their managers to control height and spatial balance, with ...
Akbar Asghari Zamani, Firouz Ja'fari, Kowsar Sakhaeian   +2 more
doaj   +2 more sources

Effects of urban street geometry and traditional kabalti passages on building surface temperature in a hot-dry climate [PDF]

Scientific Reports
In hot climate regions, the direct impact of solar radiation on building surfaces, including heat absorption and storage, negatively impacts outdoor comfort and the living conditions of urban residents.
Şefika Ergin, Kübra Suna Gider, İbrahim Halil Şeker, Hasan Yildizhan, Arman Ameen   +4 more
doaj   +2 more sources

Solar Radiation and Daylighting Assessment Using the Sky-view Factor (SVF) Analysis as Method to Evaluate Urban Planning Densification Policies Impacts

Energy Procedia, 2016
AbstractThis study identifies and proposes simple methods to assess solar radiation, daylighting availability and Sky-View Factor (SVF) modification, in complex urban environment. Numerical methods and 3D simulation software are combined with photo processing methods using digital cameras with special mirrors to project the hemispherical environment ...
Cristina S Polo Lopez, Lavinia Chiara Tagliabue   +1 more
exaly   +5 more sources

Solar Energy Potential Assessment on Rooftops and Facades in Large Built Environments Based on LiDAR Data, Image Processing, and Cloud Computing. Methodological Background, Application, and Validation in Geneva (Solar Cadaster) [PDF]

Frontiers in Built Environment, 2018
The paper presents the core methodology for assessing solar radiation and energy production on building rooftops and vertical facades (still rarely considered) of the inner-city. This integrated tool is based on the use of LiDAR, 2D and 3D cadastral data.
Gilles Desthieux, Claudio Carneiro, Reto Camponovo, Pierre Ineichen, Eugenio Morello, Anthony Boulmier, Nabil Abdennadher, Sébastien Dervey, Christoph Ellert   +8 more
doaj   +5 more sources

Street view-derived city built environment and vulnerability to temperature extremes: a nationally representative population-based cohort study [PDF]

BMC Medicine
Background The city built environment plays a crucial role in influencing population vulnerability to temperature extremes, yet population-based evidence has been limited. Methods We included 21,494 urban residents from a nationally representative cohort
Wanzhou Wang, Chao Yang, Ze Liang, Fulin Wang, Jinwei Wang, Feifei Zhang, Pengfei Li, Luxia Zhang   +7 more
doaj   +2 more sources

Automatic Sky View Factor Estimation from Street View Photographs—A Big Data Approach

Remote Sensing, 2017
Hemispherical (fisheye) photography is a well-established approach for estimating the sky view factor (SVF). High-resolution urban models from LiDAR and oblique airborne photogrammetry can provide continuous SVF estimates over a large urban area, but ...
Jianming Liang, Jianhua Gong, Jun Sun, Jieping Zhou, Wenhang Li, Yi Li, Jin Liu, Shen Shen   +7 more
doaj   +3 more sources

A Numerical Study on the Correlation between Sky View Factor and Summer Microclimate of Local Climate Zones

Atmosphere, 2019
In the context of urbanization, research on urban microclimate and thermal comfort has become one of the themes of eco-city design. Sky view factor (SVF), one of the parameters of urban spatial form, combines multiple morphological information, such as ...
Tong Lyu, Riccardo Buccolieri, Zhi Gao
doaj   +3 more sources

Temporal and spatial variations of urban surface temperature and correlation study of influencing factors [PDF]

Scientific Reports
Urban overheating significantly affects thermal comfort and livability, making it essential to understand the relationship between urban form and land surface temperature (LST).
Lei Ding, Xiao Xiao, Haitao Wang
doaj   +2 more sources

Sky View Factor (SVF) assessment in a real-time system for thermal comfort conditions monitoring in the Moscow region [PDF]

IOP Conference Series: Earth and Environmental Science, 2020
Abstract Comfort indices are used to assess the harm to human health caused by unfavorable thermal conditions. All calculated indices are based on both meteorological and physiological parameters. An algorithm is used which is based on a model RayMan for calculating two of the most common thermal indexes: PET and UTCI, which are based on
Perkhurova A.A., Varentsov M.I., Samsonov T.E., Kargashin P.E., Korosteleva P.A., Konstantinov P.I.   +5 more
openaire   +2 more sources