A Photographic Investigation of Tehran's Light Pollution from North and East Directions

Authors

1 M.Sc. student of Natural Resources and Environment at Islamic Azad University, Damavand Branch.

2 Qom University of Technology

Abstract

Tehran is the most affected town by light pollution in Iran. In this study, the role of the regional topography in the distribution of light pollution in Tehran was evaluated using digital images recording and analyzing the obtained images from Tehran sky-glow by East and South in standard image-processing Software. The scale of Tehran's glowing =dome as measured by 17 mag/arc sec2 or 0.017 cd/m2 by South, and 18.7 (mag/arc sec2) or 0.0035 cd/m2 by East. Considering the approximately equal distance of the two viewpoints from the center of Tehran city, the calculated scale by South is 1.36 times larger than the amount from the East point.

Keywords


Craine Erin M (2012) Preliminary Experiments Using a Digital Camera to Measure Commercial Light Sources. Publishing Astronomy Web. http://docs.darksky.org/Reports/GlareMetricExperimentWriteUpFinal.pdf
Elsahragty M, Kim J (2015) Assessment and Strategies to Reduce Light Pollution Using Geographic Information Systems. International Conference on Sustainable Design, Engineering and Construction  DOI: 10.1016/j.proeng.2015.08.458
Garstang, R.H (1991) Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 103, Oct. 1991, p. 1109-1116.
Hiscocks P (2014) Measuring Luminance with a Digital Camera, Publishing Luminance Web. http://www.ee.ryerson.ca/~phiscock/astronomy/light-pollution/luminance-notes-2.pdf
Hollan J (2006) RGB radiometrie digitálními fotoaparáty, Publishing Luminance Web. http://amper.ped.muni.cz/light/luminance/czech
Hollan, J (2009) What is light pollution, and how do we quantify it?, Publishing light pollution Web. http://amper.ped.muni.cz/light/lp what is.pdf
Koll´ath Z (2010) Measuring and modeling light pollution at the Zselic Starry Sky Park, 5th Workshop of Young Researchers in Astronomy and Astrophysics
Kyba CCM, Ruhtz T, Fischer J, Hölker F (2011) Cloud Coverage Acts as an Amplifier for Ecological Light Pollution in Urban Ecosystems. PLoS ONE6(3): e17307. https://doi.org/10.1371/journal.pone.0017307
Lolkema DE, Haaima M, den Outer PN, Spoelstra H (2010) Effects of Atmospheric Conditions on Night Sky Brightness. RIVM; Bilthoven, the Netherlands. Report 680151002/2010.
Longcore T, Rich C (2004) Ecological Light Pollution. Frontiers in Ecology and the Environment. 2(4), 191-198. doi:10.2307/3868314
Mahtabi M, Danekar A) 2013) The ways of reduction of environmental effects of light pollution on sea turtle's activities. Iranian Green Wave publication, 42, page 39 - 47
Mirzakhalil SH (2014) Light pollution, Avaye Ghalam, Tehran
Mirzakhalil SH (2012) A New Definition of Light Pollution Based on the Status of Light Pollution in Iran; The first light pollution conference, Slovakian
Mohajer SM (2011) Reducing energy losses in urban illumination systems with emphasis on light pollution reduction. Dissertation, Power and Water University of Technology Energy Department
Morgan T (2006) Light pollution and nuisance: The Enforcement Guidance for Light as a Statutory Nuisance, Planning Law 
Rajkhowa R (2012) Light Pollution and Impact of Light Pollution; international Journal of Science and Research (IJSR)
Walker M.F (1970) Publ. Astron. Soc. Pacific, 82, 672-698.
Volume 1, Issue 1 - Serial Number 1
September 2017
Pages 18-24
  • Receive Date: 05 September 2017
  • Revise Date: 08 October 2017
  • Accept Date: 20 October 2017
  • First Publish Date: 20 October 2017