RT Journal Article
T1 Monitoring Long-Term Trends in the Anthropogenic Night Sky Brightness
A1 Bará Viñas, Salvador
A1 Lima, Raúl C.
A1 Zamorano, Jaime
K1 Light pollution measurement
K1 Radiometry
K1 Photometry
K1 Environmental monitoring
K1 Sky brightness
AB Monitoring long-term trends in the evolution of the anthropogenic night sky brightness is a demanding task due to the high dynamic range of the artificial and natural light emissions and the high variability of the atmospheric conditions that determine the amount of light scattered in the direction of the observer. In this paper, we analyze the use of a statistical indicator, the mFWHM, to assess the night sky brightness changes over periods of time larger than one year. The mFWHM is formally defined as the average value of the recorded magnitudes contained within the full width at half-maximum region of the histogram peak corresponding to the scattering of artificial light under clear skies in the conditions of a moonless astronomical night (sun below −18◦ , and moon below −5 ◦ ).We apply this indicator to the measurements acquired by the 14 SQM detectors of the Galician Night Sky Brightness Monitoring Network during the period 2015–2018. Overall, the available data suggest that the zenithal readings in the Sky Quality Meter (SQM) device-specific photometric band tended to increase during this period of time at an average rate of +0.09 magSQM/arcsec2 per year.
PB MDPI
YR 2019
FD 2019
LK http://hdl.handle.net/10347/21347
UL http://hdl.handle.net/10347/21347
LA eng
NO Bará, S.; Lima, R.C.; Zamorano, J. Monitoring Long-Term Trends in the Anthropogenic Night Sky Brightness. Sustainability 2019, 11, 3070
NO This research was funded by Xunta de Galicia/FEDER, grant number ED431B 2017/64 (S.B.).J.Z. acknowledges the support from ACTION, a project funded by the European Union H2020-SwafS2018-1-824603. CITEUC is funded by National Funds through FCT—Foundation for Science and Technology(project: UID/MULTI/00611/2019) and FEDER—European Regional Development Fund through COMPETE2020—Operational Programme Competitiveness and Internationalization, project: POCI-01-0145-FEDER006922 (R.C.L.)
DS Minerva
RD 27 abr 2026