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Calibrating Nighttime Satellite Imagery with Red Photometer Networks
The data retrieved from satellite imagery and ground-based photometers are the two main sources of information on light pollution and are thus the two main tools for tackling the problem of artificial light pollution at night (ALAN). While satellite data
Borja Fernandez-Ruiz +5 more
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Contaminación de luz en Michoacán (campaña para cielos oscuros)
The deterioration of night sky due to light pollution- the glare produced by artificial light that gets lost towards the sky - is a topic that is beginning to be considered in some countries, which are taking measures to regulate the characteristics of ...
Eduardo Antaramián Harutunián
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Scientists Observe Never-Before-Seen Green Glow in Mars Night Sky
Scientists have observed a fascinating green glow in the Martian night sky for the first ...
Georgiou, Aristos +2 more
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A Sky Quality Meter (SQM) is a photometer designed to measure night sky brightness. SQMs have been used to interpret light fields for various purposes, including studies of relationships between directional light brightness and sea turtle hatchling ...
Shigetomo Hirama +4 more
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Artificial light emission analysis for the city of St. Petersburg
Artificial light emission within the limits of major cities is increasing year by year. The level of this rapid growth depends on the influence of complex factors such as urban enlargement, air pollution, environmental conditions, lack of outdoor ...
Kolgushkina Svetlana
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Background: Light pollution is inappropriate or excessive use of artificial light. Nighttime sky radiance is an effective measure to study its effects on individual sleep quality. Objectives: The study is aimed to measure the effect of light pollution on
Arista Lahiri +4 more
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Internal gravitational waves are space-time fluctuations of air masses in the atmosphere. In addition to the longitudinal component, they also have a transverse component, which distinguishes them from ordinary acoustic waves.
Mordosova, O.V., Koltovskoi, I.I.
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THESE phenomena on about June 30 and July 1, referred to in my letter (NATURE, July 9, p. 221), I termed displays of Aurorae, and was prompted to apply that title by the descriptions given in some of the London newspapers, which stated that well-defined streamers had been observed from the metropolis.
openaire +2 more sources
The article presents the results of the studies concerning the influence of a light source installed in luminaire of opal sphere type on the light pollution effect of the night sky.
Przemyslaw Tabaka, Pawel Rozga
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