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Author (up) Kocifaj, M.; Posch, T.; Solano Lamphar, H.A. doi  openurl
  Title On the relation between zenith sky brightness and horizontal illuminance Type Journal Article
  Year 2015 Publication Monthly Notices of the Royal Astronomical Society Abbreviated Journal MNRAS  
  Volume 446 Issue Pages 2895–2901  
  Keywords Skyglow; scattering; atmospheric effects; light pollution; numerical methods  
  Abstract The effects of artificial light at night are an emergent research topic for astronomers, physicists, engineers and biologists around the world. This leads to a need for measurements of the night sky brightness (= diffuse luminance of the night sky) and nocturnal illuminance. Currently, the most sensitive light meters measure the zenith sky brightness in mag_V/arcsec^2 or – less frequently – in cd/m^2. However, the horizontal illuminance resulting only from the night sky is an important source of information that is difficult to obtain with common instruments. Here we present a set of approximations to convert the zenith luminance into horizontal illuminance. Three different approximations are presented for three idealized atmospheric conditions: homogeneous sky brightness, an isotropically scattering atmosphere and a turbid atmosphere. We also apply the resulting conversion formulae to experimental data on night sky luminance, obtained during the past three years.  
  Address Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynska dolina, 842 48 Bratislava, Slovak Republic  
  Corporate Author Thesis  
  Publisher Royal Astronomical Society Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1076  
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