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Original scientific paper
https://doi.org/10.17794/rgn.2018.3.9

NIGHT SKY BRIGHTNESS ABOVE ZAGREB 2012.-2017.

Željko Andreić   ORCID icon orcid.org/0000-0003-0175-8174 ; University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Pierottijeva 6, 10000 Zagreb, Croatia

Fulltext: english, pdf (1 MB) pages 85-94 downloads: 195* cite
APA 6th Edition
Andreić, Ž. (2018). NIGHT SKY BRIGHTNESS ABOVE ZAGREB 2012.-2017.. Rudarsko-geološko-naftni zbornik, 33 (3), 85-94. https://doi.org/10.17794/rgn.2018.3.9
MLA 8th Edition
Andreić, Željko. "NIGHT SKY BRIGHTNESS ABOVE ZAGREB 2012.-2017.." Rudarsko-geološko-naftni zbornik, vol. 33, no. 3, 2018, pp. 85-94. https://doi.org/10.17794/rgn.2018.3.9. Accessed 29 Jan. 2020.
Chicago 17th Edition
Andreić, Željko. "NIGHT SKY BRIGHTNESS ABOVE ZAGREB 2012.-2017.." Rudarsko-geološko-naftni zbornik 33, no. 3 (2018): 85-94. https://doi.org/10.17794/rgn.2018.3.9
Harvard
Andreić, Ž. (2018). 'NIGHT SKY BRIGHTNESS ABOVE ZAGREB 2012.-2017.', Rudarsko-geološko-naftni zbornik, 33(3), pp. 85-94. https://doi.org/10.17794/rgn.2018.3.9
Vancouver
Andreić Ž. NIGHT SKY BRIGHTNESS ABOVE ZAGREB 2012.-2017.. Rudarsko-geološko-naftni zbornik [Internet]. 2018 [cited 2020 January 29];33(3):85-94. https://doi.org/10.17794/rgn.2018.3.9
IEEE
Ž. Andreić, "NIGHT SKY BRIGHTNESS ABOVE ZAGREB 2012.-2017.", Rudarsko-geološko-naftni zbornik, vol.33, no. 3, pp. 85-94, 2018. [Online]. https://doi.org/10.17794/rgn.2018.3.9
Fulltext: croatian, pdf (78 KB) pages 94-94 downloads: 116* cite
APA 6th Edition
Andreić, Ž. (2018). OSVIJETLJENOST NOĆNOGA NEBA IZNAD ZAGREBA, HRVATSKA, 2012. – 2017.. Rudarsko-geološko-naftni zbornik, 33 (3), 94-94. https://doi.org/10.17794/rgn.2018.3.9
MLA 8th Edition
Andreić, Željko. "OSVIJETLJENOST NOĆNOGA NEBA IZNAD ZAGREBA, HRVATSKA, 2012. – 2017.." Rudarsko-geološko-naftni zbornik, vol. 33, no. 3, 2018, pp. 94-94. https://doi.org/10.17794/rgn.2018.3.9. Accessed 29 Jan. 2020.
Chicago 17th Edition
Andreić, Željko. "OSVIJETLJENOST NOĆNOGA NEBA IZNAD ZAGREBA, HRVATSKA, 2012. – 2017.." Rudarsko-geološko-naftni zbornik 33, no. 3 (2018): 94-94. https://doi.org/10.17794/rgn.2018.3.9
Harvard
Andreić, Ž. (2018). 'OSVIJETLJENOST NOĆNOGA NEBA IZNAD ZAGREBA, HRVATSKA, 2012. – 2017.', Rudarsko-geološko-naftni zbornik, 33(3), pp. 94-94. https://doi.org/10.17794/rgn.2018.3.9
Vancouver
Andreić Ž. OSVIJETLJENOST NOĆNOGA NEBA IZNAD ZAGREBA, HRVATSKA, 2012. – 2017.. Rudarsko-geološko-naftni zbornik [Internet]. 2018 [cited 2020 January 29];33(3):94-94. https://doi.org/10.17794/rgn.2018.3.9
IEEE
Ž. Andreić, "OSVIJETLJENOST NOĆNOGA NEBA IZNAD ZAGREBA, HRVATSKA, 2012. – 2017.", Rudarsko-geološko-naftni zbornik, vol.33, no. 3, pp. 94-94, 2018. [Online]. https://doi.org/10.17794/rgn.2018.3.9

Abstracts
The night sky brightness at the RGN site (near the centre of Zagreb, Croatia) was monitored form January 2012. to December 2017. The gathered data show that the average night sky brightness in this period did not change significantly, apart from differences caused by yearly variations in meteorological parameters. The nightly minima, maxima and mean values of the sky brightness do change considerably due to changes in meteorological conditions, often being between 2 and 3 magnitudes. The seasonal probability curves and histograms are constructed and are used to obtain additional information on the light pollution at the RGN site. They reveal that the night sky brightness clutters around two peaks, at about 15.0 mag/arcsec2 and at about 18.2 mag/arcsec2. The tendency to slightly lower brightness values in spring and summer can also be seen in the data. Two peaks correspond to cloudy and clear nights respectively, the difference in brightness between them being about 3 magnitudes. A crude clear/cloudy criterion can be defined too: the minimum between two peaks is around 16.7 mag/arcsec2. The brightness values smaller than thisare attributed to clear nights and vice-versa. Comparison with Vienna and Hong-Kong indicates that the light pollution of Zagreb is a few times larger.

Keywords
light pollution; night sky brightness; site testing; atmospheric effects; Zagreb

Hrčak ID: 201014

URI
https://hrcak.srce.hr/201014

[croatian]

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