Results 21 to 30 of about 364,970 (284)
Sky Variability in the y Band at the LSST Site [PDF]
, 2010 We have measured spatial and temporal variability in the y band sky brightness over the course of four nights above Cerro Tololo near Cerro Pachon, Chile, the planned site for the Large Synoptic Survey Telescope (LSST).
Gilmore, David Kirk +4 more
core +2 more sources
Ecology and Evolution, 2021 Urban environments often host a greater abundance and diversity of alien plant species than rural areas. This is frequently linked to higher disturbance and propagule pressure, but could also be related to the additional establishment of species from ...
Charly Géron +3 more
doaj +1 more source
Remote Sensing, 2023 Urbanization transforms simple two-dimensional natural spaces into complex three-dimensional (3D) artificial spaces through intense land use. Hence, urbanization continuously transforms vertical urban settings and the corresponding sky view area. As such,
Seung Man An
doaj +1 more source
Proposal of System for Calculating Sky View Factor Using Google Street View [PDF]
, 2021 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
Atmospheric impacts on daytime urban heat island [PDF]
, 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 ...
Drach, Patricia +2 more
core +1 more source
Remote Sensing, 2022 Extreme heat exposure has severe negative impacts on humans, and the issue is exacerbated by climate change. Estimating spatial heat stress such as mean radiant temperature (MRT) is currently difficult to apply at city scale.
Eun-Sub Kim +4 more
doaj +1 more source
Real-Time Sky-View Factor Calculation and Approximation
Journal of Atmospheric and Oceanic Technology, 2004 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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On the Calculation of Urban Morphological Parameters Using GIS: An Application to Italian Cities
Atmosphere, 2023 The identification of parameters that can quantitatively describe the different characteristics of urban morphology is fundamental to studying urban ventilation and microclimate at the local level and developing parameterizations of the dynamic effect of
Antonio Esposito +9 more
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Analyzing the correlation of sky-view factor and shadow regions in hyperspectral data
2016 24th Signal Processing and Communication Application Conference (SIU), 2016 In this paper, we investigate the radiance and reflectance values of the shadow regions in hyperspectral data, and their relation to the sky-view factors. For this purpose, first, we find the shadow regions using LiDAR data. Then, we compute the sky-view factors from LiDAR data.
Oduncu, Emrah, Yuksel, Seniha Esen
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Estimation of Continuous Urban Sky View Factor from Landsat Data Using Shadow Detection
Remote 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