Alteration of twilight sky brightness profile by light pollution

The phenomenon of twilight has been stipulated as naturally dependent on the variables of solar depression, aerosol concentration and ozone composition. The unique color spectrum of twilight is attributed by ozone layer and aerosol, whereas its brightness is heavily relying on the altitude of sun be...

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Published in:Scientific Reports
Main Author: Faid M.S.; Shariff N.N.M.; Hamidi Z.S.; Wahab R.A.; Ahmad N.; Mohd Nawawi M.S.A.; Nahwandi M.S.
Format: Article
Language:English
Published: Nature Research 2024
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208516582&doi=10.1038%2fs41598-024-76550-3&partnerID=40&md5=f8a2e45dbded3fc291ee856ea658ae85
id 2-s2.0-85208516582
spelling 2-s2.0-85208516582
Faid M.S.; Shariff N.N.M.; Hamidi Z.S.; Wahab R.A.; Ahmad N.; Mohd Nawawi M.S.A.; Nahwandi M.S.
Alteration of twilight sky brightness profile by light pollution
2024
Scientific Reports
14
1
10.1038/s41598-024-76550-3
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208516582&doi=10.1038%2fs41598-024-76550-3&partnerID=40&md5=f8a2e45dbded3fc291ee856ea658ae85
The phenomenon of twilight has been stipulated as naturally dependent on the variables of solar depression, aerosol concentration and ozone composition. The unique color spectrum of twilight is attributed by ozone layer and aerosol, whereas its brightness is heavily relying on the altitude of sun below horizon. While all the natural dependence is being researched extensively, the impact of light pollution on the brightness of the twilight is not being explored thoroughly. The objective of this study is to find out the alteration of light pollution towards the natural behavior of twilight sky brightness. Total of 84 data of twilight brightness was collected from 2014 until 2022 using Sky Quality Meter, and the specific location with profile classified as urban, suburban and pristine is investigated to study the impact of light pollution on twilight brightness. The result demonstrates that the stability of twilight brightness, which naturally factored by solar depression within the range of 18°, discovered to be heavy influenced by the zenith light pollution of the location sky, as evidenced by location that has zenith pollution of 17.11, 19.77, and 21.39, has horizontal twilight brightness of 14.84, 19.55 and 21.2 and solar depression during brightness stability at 11.5°, 15.67° and 17.49°. © The Author(s) 2024.
Nature Research
20452322
English
Article

author Faid M.S.; Shariff N.N.M.; Hamidi Z.S.; Wahab R.A.; Ahmad N.; Mohd Nawawi M.S.A.; Nahwandi M.S.
spellingShingle Faid M.S.; Shariff N.N.M.; Hamidi Z.S.; Wahab R.A.; Ahmad N.; Mohd Nawawi M.S.A.; Nahwandi M.S.
Alteration of twilight sky brightness profile by light pollution
author_facet Faid M.S.; Shariff N.N.M.; Hamidi Z.S.; Wahab R.A.; Ahmad N.; Mohd Nawawi M.S.A.; Nahwandi M.S.
author_sort Faid M.S.; Shariff N.N.M.; Hamidi Z.S.; Wahab R.A.; Ahmad N.; Mohd Nawawi M.S.A.; Nahwandi M.S.
title Alteration of twilight sky brightness profile by light pollution
title_short Alteration of twilight sky brightness profile by light pollution
title_full Alteration of twilight sky brightness profile by light pollution
title_fullStr Alteration of twilight sky brightness profile by light pollution
title_full_unstemmed Alteration of twilight sky brightness profile by light pollution
title_sort Alteration of twilight sky brightness profile by light pollution
publishDate 2024
container_title Scientific Reports
container_volume 14
container_issue 1
doi_str_mv 10.1038/s41598-024-76550-3
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208516582&doi=10.1038%2fs41598-024-76550-3&partnerID=40&md5=f8a2e45dbded3fc291ee856ea658ae85
description The phenomenon of twilight has been stipulated as naturally dependent on the variables of solar depression, aerosol concentration and ozone composition. The unique color spectrum of twilight is attributed by ozone layer and aerosol, whereas its brightness is heavily relying on the altitude of sun below horizon. While all the natural dependence is being researched extensively, the impact of light pollution on the brightness of the twilight is not being explored thoroughly. The objective of this study is to find out the alteration of light pollution towards the natural behavior of twilight sky brightness. Total of 84 data of twilight brightness was collected from 2014 until 2022 using Sky Quality Meter, and the specific location with profile classified as urban, suburban and pristine is investigated to study the impact of light pollution on twilight brightness. The result demonstrates that the stability of twilight brightness, which naturally factored by solar depression within the range of 18°, discovered to be heavy influenced by the zenith light pollution of the location sky, as evidenced by location that has zenith pollution of 17.11, 19.77, and 21.39, has horizontal twilight brightness of 14.84, 19.55 and 21.2 and solar depression during brightness stability at 11.5°, 15.67° and 17.49°. © The Author(s) 2024.
publisher Nature Research
issn 20452322
language English
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