Results 31 to 40 of about 5,107 (209)

Estimation of Continuous Urban Sky View Factor from Landsat Data Using Shadow Detection

open access: yesRemote Sensing, 2016
Sky View Factor (SVF, a dimensionless value between 0 and 1 representing obstructed and unobstructed sky, respectively) has an important influence on urban energy balance, and is a key contributor to the Urban Heat Island (UHI) effect experienced by ...
Matus Hodul, Anders Knudby, Hung Chak Ho
doaj   +1 more source

Research on Calculation Method of Total Solar Radiation of Urban Settlements Based on Parametric 3D Model [PDF]

open access: yesE3S Web of Conferences, 2019
Solar radiation is a major factor in promoting the sustainable development of urban settlements. To understand the distribution of solar radiation in urban settlements, this paper develops the sky view factor (SVF) algorithm based on the parameterization
Chen Ruixin   +5 more
doaj   +1 more source

Study on Relationship between Shading and Outdoor Air Temperature Based on the Comparison of Two High-Rise Residential Estates with Field Measurements

open access: yesBuildings, 2022
High-rise residential estates are characterized by high floor area ratios, many floors, and similar green area ratios. Beijing is hot in summer, and shading is an important strategy to improve the outdoor thermal environment of residential estates in ...
Wenwen Li   +3 more
doaj   +1 more source

Mapping Europe into local climate zones [PDF]

open access: yes, 2019
Cities are major drivers of environmental change at all scales and are especially at risk from the ensuing effects, which include poor air quality, flooding and heat waves.
Bechtel, Benjamin   +3 more
core   +2 more sources

Mediterranean Morphologies in Hot Summer Conditions: Learning from France’s “Glorious Thirty” Holiday Housing

open access: yesJournal of Contemporary Urban Affairs, 2021
Climate change and rising temperatures lead to an air-conditioning proliferation in summertime of the Mediterranean regions. This study links urban morphology to the microclimate.
Marjan Sansen   +2 more
doaj   +1 more source

Microclimate Environmental Assessment and Impact of Mountain City Pedestrian Streets in Summer [PDF]

open access: yesE3S Web of Conferences, 2020
In mountainous cities, walking is an important form of transportation. The microclimate environment of pedestrian streets in summer affects the comfort of pedestrians, especially in hot summer cities.
Xiong Ke, Yang Zhenjing, Cheng Canhua
doaj   +1 more source

A simple operative method for determination of sky view factors in complex urban canyons from fisheye photographs

open access: yesMeteorologische Zeitschrift, 1992
The sky view factor (SVF) is of importance in the study of urban climates. There is a close connection between the SVF and the fluxes of longwave radiation.
Björn Holmer
doaj   +1 more source

Tree crown geometry and its performances on human thermal comfort adjustment

open access: yesJournal of Urban Management, 2021
Trees play an important part in landscaping as well as thermal environment adjustment. This study selected a satellite city of Sichuan Province in China, Xindu, for field measurement about tree’s crown characteristics on their cooling performances on ...
Jing Wang   +6 more
doaj   +1 more source

Derivation of Sky-View Factors from LIDAR Data [PDF]

open access: yes, 2012
The use of Lidar (Light Detection and Ranging), an active light-emitting instrument, is becoming increasingly common for a range of potential applications.
Chapman, Lee, Kidd, Christopher
core   +2 more sources

GPU Accelerated Parallel Computing for Estimating Continuous Sky view Factor Map

open access: yes, 2021
The sky view factor (SVF) that represents the fraction of visible sky on a hemisphere or the percentage of radiation reaching the planar ground in the entire hemisphere’s input radiation is an important parameter for urban climate studies. However, the
Xiaojiang Li, Guoqing Wang
semanticscholar   +1 more source

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