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Author Estrada-García, R.; Garcí­a-Gil, M.; Acosta, L.; Bará, S.; Sanchez de Miguel, A.; Zamorano, J. url  openurl
  Title Statistical modelling and satellite monitoring of upward light from public lighting Type Journal Article
  Year 2015 Publication Lighting Research and Technology Abbreviated Journal Lighting Res. & Tech.  
  Volume Issue 1477153515583181 Pages 1-30  
  Keywords Remote sensing; radiative transfer; modeling; skyglow; light pollution; urban  
  Abstract In this work, we propose an approach to estimating the amount of light wasted by being sent towards the upper hemisphere from urban areas. This is a source of light pollution. The approach is based on a predictive model that provides the fraction of light directed skywards in terms of a small set of identified explanatory variables that characterise the urban landscape and its light sources. The model, built via the statistical analysis of a wide sample of basic urban scenarios to compute accurately the amount of light wasted at each of them, establishes an optimal linear regression function that relates the fraction of wasted flux to relevant variables like the kind of luminaires, the street fill factor, the street width, the building and luminaire heights and the walls and pavement reflectances. We applied this model to evaluate the changes in emissions produced at two urban nuclei in the Deltebre municipality of Catalonia. The results agree reasonably well with those deduced from the radiance measurements made with the VIIRS instrument onboard the Suomi-NPP Earth orbiting satellite.  
  Address Escola Tècnica Superior d’Enginyeria Industrial de Barcelona (ETSEIB), Universitat Politècnica de Catalunya, Spain; manuel.garcia.gil(at)upc.edu  
  Corporate Author Thesis  
  Publisher Sage Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition (up) Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1155  
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Author Bará, S.; Tilve, V.; Nievas, M.; Sanchez de Miguel, A.; Zamorano, J. url  doi
openurl 
  Title Zernike power spectra of clear and cloudy light-polluted urban night skies Type Journal Article
  Year 2015 Publication Applied Optics Abbreviated Journal Appl. Opt.  
  Volume 54 Issue 13 Pages 4120-4129  
  Keywords Skyglow; artificial ligh at night; light pollution; Zernike; power spectrum; atmospheric optics; imaging systems; image analysis  
  Abstract The Zernike power spectra of the all-sky night brightness distributions of clear and cloudy nights are computed using a modal projection approach. The results obtained in the B, V and R Johnson-Cousins' photometric bands during a one-year campaign of observations at a light-polluted urban site show that these spectra can be described by simple power laws with exponents close to -3 for clear nights and -2 for cloudy ones. The second-moment matrices of the Zernike coefficients show relevant correlations between modes. The multiplicative role of the cloud cover, that contributes to a significant increase of the brightness of the urban night sky in comparison with the values obtained in clear nights, is described in the Zernike space.  
  Address Area de Optica, Dept. Fisica Aplicada. Facultade de Fisica / Facultade de Optica e Optometría Universidade de Santiago de Compostela Campus Sur, E-15782 Santiago de Compostela, Galicia, Spain; salva.bara@usc.es  
  Corporate Author Thesis  
  Publisher Optical Society of America Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition (up) Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1156  
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Author Reddy, L.; Reddy, V.; Hemanth, S.; Prasad, P. url  openurl
  Title Modelling and Optimization of Solar Light Trap For “Reducing and Controlling” The Pest Population Type Journal Article
  Year 2015 Publication International Journal of Engineering Technology, Management and Applied Sciences Abbreviated Journal Intl. J. of Engr. Tech., Man. & Appl. Sci.  
  Volume 3 Issue 4 Pages 224-234  
  Keywords Animals; insects; India; Madanapalli; Chittor; Andhra Pradesh; moonlight; polarization  
  Abstract Reducing and controlling the pest population using light traps is an age old practice in our crop sector. Though there are several models and designs are available but we would plan to develop something that could be solar powered trap with collecting net and not dependent on any other source like wind power, mechanical power, fuel & electricity. This device operates automatically, turning on the light during light fails i.e., 6 P.M and turns off before sunrises i.e., 6A.M. Most of the damage causing insects are active only during that time. Installing one light trap in an acre attracts at least more than 1000 adult pests for a day. The insects attract solar light trap model had been tested in our field crops like vegetables, paddy, and sugarcane, fruit crops like mango, pomegranate, guava, coconut and tea, coffee and jasmine crops across India. In this study we examine the relationship between the Lunar Phases and the efficiency of light traps in catching pests in the month of March and April at Madanapalli, Chittor, Andhra Pradesh. The lunar phase depending on the polarized moonlight and the relative catch follow the collecting distance. The collecting distance ranged and averaged in the phase angle divisions. The study demonstrated for the first time the effect of increasing polarized moonlight in the first and last quarter on the flying activity of pests. Catching quantity depend on the connection with the collecting distance when is the greatest of collection distance.  
  Address Department of Mechanical Engineering, SVTM (J.N.T.U.A) Angallu, Madanapalli ,Chittor (Dist), A.P., India  
  Corporate Author Thesis  
  Publisher IJETMAS Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition (up) Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1161  
Permanent link to this record
 

 
Author Lyytimäki, J. url  doi
openurl 
  Title Avoiding overly bright future: The systems intelligence perspective on the management of light pollution Type Journal Article
  Year 2015 Publication Environmental Development Abbreviated Journal Environmental Development  
  Volume 16 Issue Pages 4-14  
  Keywords  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2211-4645 ISBN Medium  
  Area Expedition (up) Conference  
  Notes Approved no  
  Call Number LoNNe @ christopher.kyba @ Serial 1200  
Permanent link to this record
 

 
Author Nam, S.; Park, S.-E.; Shin, H.-C. url  doi
openurl 
  Title Accessing the economic value of night view of bridge using contingent valuation method: the case of South Korea's Han-River bridge Type Journal Article
  Year 2015 Publication International Journal of Culture, Tourism and Hospitality Research Abbreviated Journal Int. J. of Culture, Tourism and Hospitality Res.  
  Volume 9 Issue 3 Pages 360-370  
  Keywords Economics; South Korea; Korea; Han River Bridge; contingent valuation method; Viewshed analysis; Seoul  
  Abstract Purpose

The purpose of this study is to estimate an individual’s probability of preservation the night view of Han-River Bridge at tax using the CVM; and to present the effects of 4Es on experience economy theory.

Design/methodology/approach

The on-site survey was conducted in the 11 district Han-river parks; Gwangnaru, Jamsil, Ttukseom, Jamwon, Banpo, Yeechon, Yeouido, Mangwon, Nanji, Ganseo and Yanghwa district including 24 bridge ssuch as Banpo, Olympic Bridge during the 8-9pm around the lighting and 9-10pm peak time of lighting.

Findings

Truncated mean WTP indicates that the economic value of the night view of Han-River Bridge is 49,575 won (about U.S. $50) per household, which implies the significance of the preservation value of the night view.

Research limitations/implications

This study sets a hypothetical market and there are limitations on hypothetical bias of the DC CVM. For the future study, a survey with a specific real payment vehicle in an attempt to reduce hypothetical bias can be a tool for the prevention of the overestimation.

Practical implications

Through the study, Seoul city has to invest aggressively on the night view landscape business of Han River bridge, which can become a landmark and lots of attraction effect of tourists. Since this study’s core aim was to justify the economic value of the night-view of the Han-River bridges, the estimated amount strongly supports the lighting business of the Han-River bridge.

Originality/value

The results of this research may help policy makers of Han-River to establish practical decision whether improving and preserving the Han-River’s night view lighting business are worth the value.
 
  Address Kyunghee University, Seoul, South Korea  
  Corporate Author Thesis  
  Publisher Emerald Group Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1750-6182 ISBN Medium  
  Area Expedition (up) Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1216  
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