Results 11 to 20 of about 59,040 (180)

Evolution of Brightness and Color of the Night Sky in Madrid

open access: yesRemote Sensing, 2021
Major schemes to replace other streetlight technologies with Light-Emitting Diode (LED) lamps are being undertaken across much of the world. This is predicted to have important consequences for nighttime sky brightness and color.
José Robles   +5 more
doaj   +1 more source

The increase in the surface brightness of the night sky and its importance in visual astronomical observations

open access: yesScientific Reports, 2023
The problem of sky pollution with artificial light currently affects practically all branches that are related to the broadly understood environment. This is especially true for astronomical observations.
Marcin Wesołowski
doaj   +1 more source

Light Pollution Monitoring and Sky Colours

open access: yesJournal of Imaging, 2020
The measurement of night sky quality has become an important task in nature conservation. The primary device used for this task can be a calibrated digital camera. In addition, colour information can be derived from sky photography.
Zoltán Kolláth   +3 more
doaj   +1 more source

Vertical Variability of Night Sky Brightness in Urbanised Areas

open access: yesQuaestiones Geographicae, 2022
Excessive amounts of artificial light emitted into the lower atmosphere at night have already become an everyday feature of modern urban landscapes, and gradually also a phenomenon associated with areas located outside large human settlements.
Karpińska Dominika, Kunz Mieczysław
doaj   +1 more source

COMPARISON OF NIGHT SKY BRIGHTNESS ABOVE ZAGREB AND A NEARBY RURAL LOCATION 2014-2017

open access: yesRudarsko-geološko-naftni Zbornik, 2020
The results of monitoring light pollution near the center of Zagreb at the Faculty of Mining, Geology and Petroleum Engineering (RGN) for the period 2012 - 2017 were presented in a recent article (Andreić, 2018).
Krešimir Pavlić, Željko Andreić
doaj   +1 more source

Effect of Street Lighting on the Urban and Rural Night-Time Radiance and the Brightness of the Night Sky

open access: yesRemote Sensing, 2021
In April 2020, due to the coronavirus pandemic and the tourism decrease in Cracow (Poland), the Road Authority of the City of Cracow, followed by the authorities of several neighbouring municipalities, decided to turn off street lighting at night.
Tomasz Ściężor
doaj   +1 more source

NSKY-CD: A System for Cloud Detection Based on Night Sky Brightness and Sky Temperature

open access: yesRemote Sensing, 2023
Cloud cover is important meteorological information that still requires expensive equipment to be monitored from the ground, especially at night. The use of artificial lights at night causes light pollution, and clouds amplify this by reflecting light ...
Luciano Massetti   +2 more
doaj   +1 more source

Towards an absolute light pollution indicator

open access: yesScientific Reports, 2022
The growing concern about the negative impact of artificial light at night on biodiversity and human health increases the need of defining a general indicator that could be used for characterizing light pollution as well as performing both spatial and ...
Philippe Deverchère   +4 more
doaj   +1 more source

Night-Time Skyglow Dynamics during the COVID-19 Epidemic in Guangbutun Region of Wuhan City

open access: yesRemote Sensing, 2022
The COVID-19 epidemic lockdown has a direct influence on urban socioeconomic activity, including night-time light (NTL) changes. Night-time skyglow, a form of light pollution caused by NTL, is also affected by public emergencies. Here we investigated the
Chengen Li, Xi Li, Changjun Zhu
doaj   +1 more source

Light brightness data near sea turtle nests as measured from the horizon and zenith using a Sky Quality Meter

open access: yesData in Brief, 2022
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
doaj   +1 more source

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