The Effect of Walls on the Sky View Factors of Photovoltaic Systems
Photovoltaic collectors deployed in multiple rows and near the structure’s walls are obscured from the receiving part of the diffuse skylight. Obscuring part of the diffuse skylight to the collectors decreases the incident diffuse radiation and thus ...
Joseph Appelbaum, Assaf Peled
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A 3D-gis extensionf for sky view factors assessment in urban environment [PDF]
This paper presents a Geographic Information System (GIS) 3D extension that is a tool to simulate the representation of sky view factors (SVF) while calculating their values.
Mendes, José F. G. +2 more
core +2 more sources
Application of Method for Calculating Sky View Factor Using Google Street View: Relation Between Sky View Factor and Physical Elements in Urban Space [PDF]
Abstract. We applied a computation method of calculating the sky view factor (SVF) using Google Street View to Shibuya area, Tokyo, for the purpose of examining the relation between the SVF/SVF change and physical elements. The distribution of the SVF calculated by the above method was visualized, and the statistical process showed the tendency of a ...
Nishio, Shoko, Ito, Fumiko
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Proposal of System for Calculating Sky View Factor Using Google Street View [PDF]
AbstractIn recent years, big data entered use in various fields. Google Street View (hereinafter called “GSV”) can be regarded as open big data, and its images can be obtained using API. The streets can be viewed 360° horizontally and 290° vertically from each point on the web.
Shoko Nishio, Fumiko Ito
openaire +1 more source
Surface temperatures in New York City: Geospatial data enables the accurate prediction of radiative heat transfer [PDF]
Three decades into the research seeking to derive the urban energy budget, the dynamics of the thermal exchange between the densely built infrastructure and the environment are still not well understood.
Aghamohamadnia, Milad +2 more
core +5 more sources
Real-Time Sky-View Factor Calculation and Approximation
Abstract Previously, the acquisition of sky-view factor data for climate studies has been time consuming and dependent on postprocessing. However, advances in technology now mean that techniques using fish-eye imagery can be algorithmically processed in real time to provide an instant calculation of the sky-view factor.
L. Chapman, J. E. Thornes
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The Sky View Factor (SVF) is a dimension-reduced representation of urban form and one of the major variables in radiation models that estimate outdoor thermal comfort.
Ariane Middel +2 more
doaj +1 more source
A site-specific standard for comparing dynamic solar ultraviolet protection characteristics of established tree canopies [PDF]
A standardised procedure for making fair and comparable assessments of the ultraviolet protection of an established tree canopy that takes into account canopy movement and the changing position of the sun is presented for use by government, planning, and
Amar, A. +6 more
core +3 more sources
Sky View Factor footprints for urban climate modeling
Abstract Urban morphology is an important multidimensional variable to consider in climate modeling and observations, because it significantly drives the local and micro-scale climatic variability in cities. Urban form can be described through urban canopy parameters (UCPs) that resolve the spatial heterogeneity of cities by specifying the 3 ...
Ariane Middel +4 more
openaire +2 more sources
PHOTOMETRIC ANALYSIS OF PI OF THE SKY DATA
Pi of the Sky is a system of two wide field of view robotic telescopes, which search for short timescale astrophysical phenomena, especially for prompt optical GRB emissions.
Rafał Opiela +5 more
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