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Chen, Q.; Ru, T.; Zhai, D.; Huang, X.; Li, Y.; Qian, L.; Wang, Y.; Zhou, G. |
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Title |
Half a century of Lighting Research & Technology: A bibliometric review |
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Journal Article |
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2019 |
Publication |
Lighting Research & Technology |
Abbreviated Journal |
Lighting Research & Technology |
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in press |
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1477153519857788 |
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Keywords |
History; Lighting; Review |
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Abstract |
Lighting Research & Technology (LRT) is an influential journal in the field of light and lighting dating back to 1969. To celebrate its 50th birthday, the current study explored its bibliometric characteristics and mapped the bibliographic information graphically through VOSviewer software. This analysis found that the number of papers has steadily increased during recent years. The most productive and cited country was the United Kingdom. The most productive and cited institution was Rensselaer Polytechnic Institute. The most prolific author was Steve Fotios and the most cited author was Mark Rea. The journal most cited together with LRT was Leukos. LRT has become more and more international and interdisciplinary over the last five decades. Suggestions for the development of LRT are provided. Develpoments over the last 50 years have turned LRT into one of leading journals in the light and lighting field, one which has a bright future. |
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1477-1535 |
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GFZ @ kyba @ |
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2573 |
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Author |
Li, X.; Duarte, F.; Ratti, C. |
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Title |
Analyzing the obstruction effects of obstacles on light pollution caused by street lighting system in Cambridge, Massachusetts |
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Journal Article |
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Year |
2019 |
Publication |
Environment and Planning B: Urban Analytics and City Science |
Abbreviated Journal |
Environment and Planning B: Urban Analytics and City Science |
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in press |
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2399808319861645 |
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Keywords |
Skyglow; Lighting; upward light |
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Artificial light has transformed urban life, enhancing visibility, aesthetics, and increasing safety in public areas. However, too much unwanted artificial light leads to light pollution, which has a negative effect on public health and urban ecosystems, as well as on the aesthetic and cultural meanings of the night sky. Some of the factors interfering with the estimation of light pollution in cities are urban features, such as the presence of trees, road dimensions, and the physical characteristics of buildings. In this study, we proposed a simplified model for unwanted upward light coming from street luminaires based on a building height model and the publicly accessible Google Street View images. We simulated and analyzed the obstruction effects of different street features on the light pollution caused by the street lighting system in Cambridge, Massachusetts. By providing quantitative information about the connections between the streetscape features and the amount of unwanted upward artificial light, this study provides reference values to inform policies aimed at curbing light pollution. |
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2399-8083 |
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GFZ @ kyba @ |
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2587 |
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Garratt, M.J.; Jenkins, S.R.; Davies, T.W. |
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Title |
Mapping the consequences of artificial light at night for intertidal ecosystems |
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Journal Article |
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Year |
2019 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
Science of The Total Environment |
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691 |
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760-768 |
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Keywords |
Ecology; Lighting |
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Widespread coastal urbanization has resulted in artificial light pollution encroaching into intertidal habitats, which are highly valued by society for ecosystem services including coastal protection, climate regulation and recreation. While the impacts of artificial light at night in terrestrial and riparian ecosystems are increasingly well documented, those on organisms that reside in coastal intertidal habitats are less well explored. The distribution of artificial light at night from seaside promenade lighting was mapped across a sandy shore, and its consequences for macroinvertebrate community structure quantified accounting for other collinear environmental variables known to shape biodiversity in intertidal ecosystems (shore height, wave exposure and organic matter content). Macroinvertebrate community composition significantly changed along artificial light gradients. Greater numbers of species and total community biomass were observed with increasing illumination, a relationship that was more pronounced (increased effects size) with increasing organic matter availability. Individual taxa exhibited different relationships with artificial light illuminance; the abundances of 27% of non-rare taxa [including amphipods (Amphipoda), catworms (Nephtys spp.), and sand mason worms (Lanice conchilega)] decreased with increasing illumination, while 20% [including tellins (Tellinidae spp.), lugworms (Arenicola marina) and ragworms (Nereididae spp.)] increased. Possible causes of these relationships are discussed, including direct effects of artificial light on macroinvertebrate behaviour and indirect effects via trophic interactions. With increasing light pollution in coastal zones around the world, larger scale changes in intertidal ecosystems could be occurring. |
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0048-9697 |
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GFZ @ kyba @ |
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2590 |
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Author |
Kim, K.-M.; Kim, Y.-W.; Oh, S.-T.; Lim, J.-H. |
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Title |
Development of a natural light reproduction system for maintaining the circadian rhythm |
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Journal Article |
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Year |
2019 |
Publication |
Indoor and Built Environment |
Abbreviated Journal |
Indoor and Built Environment |
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in press |
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1420326X19855421 |
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Keywords |
Lighting; Human Health; Circadian Rhythm; indoor light |
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Circadian rhythm is linked to sleep, arousal and human health overall, affecting body temperature and heart rate. A 24-h natural-light cycle provides optimum lighting environment for humans. However, as people increasingly stay indoors with artificial lighting, lacking periodic characteristics, imbalance in the circadian rhythm ensues. Previous lighting-related studies to resolve such problem partially provided the colour temperatures of natural light but failed to reproduce the 24-h periodic characteristics of it. This study proposes a natural light-reproducing system that provides the daylight cycle characteristics of natural light in order to maintain the circadian rhythm. Natural light was measured through an optical measurement equipment, while the characteristics (colour temperature and short-wavelength ratio) of natural light by season and time were analysed. Subsequently, the control indicator of seasonal and hourly lighting was extracted and applied to the light-emitting diode lighting to provide lighting service, executing a daylight cycle that reflects the characteristics of natural light. After the sunset, especially, the circadian rhythm was maintained by minimizing the short-wavelength ratio of the lighting while maintaining indoor illumination. |
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Department of Computer Science & Engineering, Kongju National University, Cheonan-si, South Korea |
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Sage |
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English |
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English |
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1420-326X |
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no |
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GFZ @ kyba @ |
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2591 |
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Author |
Zielinska-Dabkowska, K.M.; Xavia, K. |
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Title |
Global Approaches to Reduce Light Pollution from Media Architecture and Non-Static, Self-Luminous LED Displays for Mixed-Use Urban Developments |
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Journal Article |
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Year |
2019 |
Publication |
Sustainability |
Abbreviated Journal |
Sustainability |
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Volume |
11 |
Issue |
12 |
Pages |
3446 |
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Keywords |
Lighting |
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Abstract |
Urban environments have become significantly brighter and more illuminated, and cities now consider media architecture and non-static, self-luminous LED displays an essential element of their strategy to attract residents, visitors, and tourists in the hours after dark. Unfortunately, most often, they are not designed with care, consideration, and awareness, nor do they support the visual wellbeing and circadian rhythms of humans. They also increase light pollution which has an adverse effect on the environment. The aim of this study was to estimate the scale of the negative impact of 28 non-static, self-luminous LED shop window displays within a real-life city context along the main shopping street Banhofstrasse in Zurich, Switzerland. An experimental field measurement survey investigation was performed to identify visual luminance with commonly available tools such as a luminance meter and a digital reflex camera for luminance photography. Moreover, the most important global approaches to reduce light pollution were evaluated in the form of existing guidelines, technical standards, and laws, all of which should be considered when specifying illuminated digital advertisements. A literature review and survey results both confirmed the extent of the problem and highlighted, too, the need to better measure, apply, and manage this new technology. The authors’ proposal for improvements involve practical recommendations for the design and implementation of future projects which can positively guide and direct this growing trend. |
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2071-1050 |
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GFZ @ kyba @ |
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2601 |
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