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Author Shi, L.; Foody, G.M.; Boyd, D.S.; Girindran, R.; Wang, L.; Du, Y.; Ling, F.
Title Night-time lights are more strongly related to urban building volume than to urban area Type Journal Article
Year 2020 Publication Remote Sensing Letters Abbreviated Journal Remote Sensing Letters
Volume 11 Issue 1 Pages 29-36
Keywords Remote Sensing; Urban; Night Lights
Abstract A strong relationship between night-time light (NTL) data and the areal extent of urbanized regions has been observed frequently. As urban regions have an important vertical dimension, it is hypothesized that the strength of the relationship with NTL can be increased by consideration of the volume rather than simply the area of urbanized land. Relationships between NTL and the area and volume of urbanized land were determined for a set of towns and cities in the UK, the conterminous states of the USA and countries of the European Union. Strong relationships between NTL and the area urbanized were observed, with correlation coefficients ranging from 0.9282 to 0.9446. Higher correlation coefficients were observed for the relationship between NTL and urban building volume, ranging from 0.9548 to 0.9604; The difference in the correlations obtained with volume and with area was statistically significant at the 95% level of confidence. Studies using NTL data may be strengthened by consideration of the volume rather than just area of urbanized land.
Address Key Laboratory for Environment and Disaster Monitoring and Evaluation, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan, China; shilingfei14(at)mails.ucas.ac.cn
Corporate Author Thesis
Publisher Taylor & Francis Place of Publication Editor
Language English Summary Language (down) English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2150-704X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 2783
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Author Lapostolle, D.; Challéat, S.
Title Lutter contre la pollution lumineuse: Trois processus de valorisation de l’obscurité dans les territoires français Type Journal Article
Year 2019 Publication VertigO Abbreviated Journal vertigo
Volume 19 Issue 2 Pages
Keywords Society; Light pollution; France; Europe
Abstract The degradation of darkness through the use of artificial light at night (ALAN) in and around human infrastructures is termed light pollution. This pollution is intrinsically related to urbanization and spills out from urban areas to affect rural areas and protected areas. The fight against light pollution is being organized in several countries where local communities are experimenting with environmental policies to protect darkness. The challenge bears on both the preservation of biodiversity and the energy transition. In France, a few pioneering rural areas are experimenting with mechanisms that include this dual implication. Two of them provide the case study for this article. We show how these areas turn darkness into a specific resource. We identify three specification processes. The first, obeying an anthropocentric utilitarian rationale, is part of the “economicization” of the environment in the line of shallow ecology. The second, following a rationale of ecocentric conservation, is part of the radical greening of the economy, in line with deep ecology. The third follows an integrated social-ecological system rationale enshrining the interdependence between development and planning and the preservation of biodiversity and energy savings. Specification controversies beset local areas. These areas become incubation rooms, that is, spaces for resolving these controversies that are reflected in a transition operator enabling the local area to take a fresh trajectory in terms of development and planning.
Address Aménagement, UMR CNRS 6049 ThéMA, Université de Bourgogne Franche-Comté, 2 boulevard Gabriel, 21000 Dijon, France; dany.lapostolle(at)u-bourgogne.fr
Corporate Author Thesis
Publisher Place of Publication Editor
Language French Summary Language (down) English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1492-8442 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 2784
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Author Mouland, J.W.; Martial, F.; Watson, A.; Lucas, R.J.; Brown, T.M.
Title Cones Support Alignment to an Inconsistent World by Suppressing Mouse Circadian Responses to the Blue Colors Associated with Twilight Type Journal Article
Year 2019 Publication Current Biology Abbreviated Journal Current Biology
Volume 29 Issue 24 Pages 4260-4267.e4
Keywords Animals; Circadian Rhythm; mouse models; cones
Abstract In humans, short-wavelength light evokes larger circadian responses than longer wavelengths. This reflects the fact that melanopsin, a key contributor to circadian assessments of light intensity, most efficiently captures photons around 480 nm and gives rise to the popular view that ‘‘blue’’ light exerts the strongest effects on the clock. However, in the natural world, there is often no direct correlation be- tween perceived color (as reported by the cone-based visual system) and melanopsin excitation. Accordingly, although the mammalian clock does receive cone-based chromatic signals, the influence of color on circadian responses to light remains unclear. Here, we define the nature and functional significance of chromatic influences on the mouse circadian sys- tem. Using polychromatic lighting and mice with altered cone spectral sensitivity (Opn1mwR), we generate conditions that differ in color (i.e., ratio of L- to S-cone opsin activation) while providing identical melanopsin and rod activation. When biased toward S-opsin activation (appearing ‘‘blue’’), these stimuli reliably produce weaker circadian behavioral responses than those favoring L-opsin (‘‘yellow’’). This influence of color (which is absent in animals lacking cone phototransduction; Cnga3/) aligns with natural changes in spectral composition over twilight, where decreasing solar angle is accompanied by a strong blue shift. Accordingly, we find that naturalistic color changes support circadian alignment when environmental conditions render diurnal variations in light intensity weak/ambiguous sources of timing information. Our data thus establish how color contributes to circadian entrainment in mammals and provide important new insight to inform the design of lighting environments that benefit health.
Address Centre for Biological Timing, Faculty of Biology, Medicine & Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK; timothy.brown(at)manchester.ac.uk
Corporate Author Thesis
Publisher Cell Place of Publication Editor
Language English Summary Language (down) English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0960-9822 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 2785
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Author Simoneau, A.; Aubé, M.; Bertolo, A.
Title Multispectral analysis of the night sky brightness and its origin for the Asiago Observatory, Italy Type Journal Article
Year 2020 Publication Monthly Notices of the Royal Astronomical Society Abbreviated Journal MNRAS
Volume 491 Issue 3 Pages 4398-4405
Keywords Skyglow; light pollution; numerical methods; Site testing; Italy; Observatories
Abstract Night protection has been a major concern for astronomers since the electrification of cities and is beginning to be recognized as a major environmental problem. In recent years, regulations have been put in place through the establishment of Dark Sky Reserves that impose stringent constraints on lighting practices for cities in protected areas. Astronomers from the Asiago Observatory, located in the Veneto region of Italy, would like to create an area of this nature around their facilities to improve and protect the quality of their astronomical observations. This study assesses the current state of the sky in the region through numerical modelling using the latest improvements to the ILLUMINA model and aims to identify the main contributing sources of artificial light. The explicit calculation of the contribution of private residential lighting helps to discern the origin of the light. We also present a new approach for extracting an estimate of the distribution of lamp technology in a region from images taken from the International Space Station.
Address Bishop’s University, 2600 rue College, Sherbrooke, Québec J1M 1Z7, Canada; alsimoneau(at)gmail.com
Corporate Author Thesis
Publisher Oxford Academic Place of Publication Editor
Language English Summary Language (down) English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0035-8711 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 2790
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Author Acuto, M.
Title We need a science of the night Type Journal Article
Year 2019 Publication Nature Abbreviated Journal Nature
Volume 576 Issue 7787 Pages 339
Keywords *Policy; *Society; *Commentary
Abstract (none)
Address Connected Cities Lab, University of Melbourne; michele.acuto(at)unimelb.edu.au
Corporate Author Thesis
Publisher Springer Nature Place of Publication Editor
Language English Summary Language (down) English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0028-0836 ISBN Medium
Area Expedition Conference
Notes PMID:31853076 Approved no
Call Number IDA @ john @ Serial 2792
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