Results 51 to 60 of about 283 (126)

Satellite Imagery Reveals Near‐Horizon Urban Light Emissions Impacting Ambient Environment

open access: yesJournal of Geophysical Research: Atmospheres, Volume 130, Issue 22, 28 November 2025.
Abstract A novel method has been developed to characterize ground‐based light sources from nighttime satellite imagery. The fraction of light directed toward low elevation angles is determined relative to the total emission into the upper hemisphere. This approach aims to identify locations that exhibit an increased amount of light emission at angles ...
Miroslav Kocifaj, Ladislav Kómar
wiley   +1 more source

Skyglow: Towards a Night-time Illumination Model for Urban Environments [PDF]

open access: yes, 2016
For night-time scenes in computer graphics there exist few consistent models or implementations for sky illumination, and those that do exist lack the feature of light pollution from artificial light sources. We present initial results for a physically-based night sky model including this "skyglow".
Tom Minor   +2 more
openaire   +1 more source

Safe and Truly Ecofriendly LED Lighting

open access: yesEnergy Science &Engineering, Volume 13, Issue 11, Page 5068-5074, November 2025.
ABSTRACT Truly ecofriendly and safe light‐emitting diode (LED) lighting in the built and urban environments requires the use of LED lights emitting significantly lower amount of blue light than conventional, first‐generation white LED lights. Thanks to substantial technology progress in the design and manufacturing of LEDs, this is now possible at the ...
Mario Pagliaro
wiley   +1 more source

Intensity and colour of artificial light at night affect insect attraction in a taxon‐dependent manner

open access: yesInsect Conservation and Diversity, Volume 18, Issue 6, Page 1099-1108, November 2025.
We measured the phototactic responses of insects to light at night using LED traps emitting light at four narrowband wavelengths of three intensity levels of relatively equal photon emission. Our data show an interaction between insect order and narrowband spectra, with marked differences in attraction between Lepidoptera and Diptera.
Gabriel A. Charvalakis   +4 more
wiley   +1 more source

Reddening the nighttime environment: Use of PC‐amber LED lighting

open access: yesEcological Solutions and Evidence, Volume 6, Issue 4, October–December 2025.
The use of Phosphor‐converted amber (PC‐amber) LED lamps has been widely championed as a means of reducing the environmental impacts of the use of artificial light at night. Here we argue that evidence for the efficacy of PC‐amber LEDs in such reductions is presently limited and that these lamps should not be seen as a panacea for the environmental ...
Kevin J. Gaston   +2 more
wiley   +1 more source

Dreamy Dwellings: How the Sleep Environment Affects Sleep Health in Adults—A Narrative Review

open access: yesLifestyle Medicine, Volume 6, Issue 4, October 2025.
ABSTRACT Sufficient high‐quality, well‐timed sleep is essential to health and physical, cognitive and emotional functions. Historically, environmental factors such as threats from other beings have likely constrained sleep. Newer sources of sleep disruption include modern work schedules, climate change, light pollution and noise pollution.
Gregory David Maxwell Potter   +5 more
wiley   +1 more source

Night lights from space: potential of SDGSAT‐1 for ecological applications

open access: yesRemote Sensing in Ecology and Conservation, Volume 11, Issue 5, Page 495-509, October 2025.
Our study emphasizes the importance of advancing ALAN monitoring from space for ecology and conservation, and it highlights the novel opportunities of SDGSAT‐1. We discuss shortcomings that need to be resolved and identify promising avenues for sound ecological impact assessments of ALAN on ecosystems using space‐borne remote sensing.
Dominique Weber   +9 more
wiley   +1 more source

Coral reef fish visual adaptations to a changing world

open access: yesFunctional Ecology, Volume 39, Issue 10, Page 2561-2572, October 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Coral reef ecosystems show fluctuations in their prevailing light environment in response to both regular (e.g. between seasons) and more prevalent stochastic events (e.g. human‐induced sediment runoff).
Abigail Shaughnessy, Fabio Cortesi
wiley   +1 more source

A low‐cost, highly flexible, open‐source setup design with digital LEDs for research on artificial light at night

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 9, Page 1948-1954, September 2025.
Abstract Artificial light at night (ALAN) is a global change factor of growing relevance, yet its impact on organisms remains poorly understood. Present studies point to rather negative impacts of ALAN on species and ecosystems. Most research on ALAN uses conventional LED technology without simulating the complex spatial and temporal facets of ALAN ...
Sandra Regina Lang   +3 more
wiley   +1 more source

Effects of skyglow on the physiology of the Eurasian perch, Perca fluviatilis

open access: yes, 2022
Künstliches Licht in der Nacht (ALAN) entsteht in Zentren menschlicher Aktivität und erhellt die Nacht, wodurch biologische Rhythmen von Menschen und Wildtieren gestört werden können. Skyglow ist eine diffuse Aufhellung des Nachthimmels aufgrund von Reflexion und Streuung von ALAN, welche indirekt große Bereiche (vor-)städtischer Ökosysteme beleuchtet.
openaire   +1 more source

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