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Author Bará, S. url  doi
openurl 
  Title Light pollution: Why should we care? Type Journal Article
  Year 2014 Publication Second International Conference on Applications of Optics and Photonics Manuel Filipe P. C. Martins Costa; Rogério Nunes Nogueira Aveiro, Portugal, 2014 Abbreviated Journal Proc. SPIE 9286  
  Volume (down) 9286 Issue Pages  
  Keywords Society; light pollution  
  Abstract The historical development of lighting technologies has been characterized by what evolution theorists call 'punctuated equilibrium': a succession of long periods of stable development followed by short periods of rapid change when key technological breakthroughs give rise to new lighting paradigms. Nowadays with the massive deployment of LED-based solid state lighting systems the illumination field is undergoing one of such accelerated transformation events. In parallel, a growing body of research has unveiled some of the complex interactions between the daily cycles of light and darkness and the regulating mechanisms of individuals, populations and ecosystems, including humans. This communication addresses some of the challenges that this new situation poses for the development of sustainable lighting systems.  
  Address Univ. de Santiago de Compostela, Spain; salva.bara@usc.es  
  Corporate Author Thesis  
  Publisher SPIE 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 Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1133  
Permanent link to this record
 

 
Author Bará, S. url  doi
openurl 
  Title Light pollution and solid-state lighting: reducing the carbon dioxide footprint is not enough Type Journal Article
  Year 2014 Publication Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 87852G, 2013 Abbreviated Journal Proc. SPIE 8785  
  Volume (down) 8785 Issue Pages  
  Keywords *Lighting; LED; light emitting diode; outdoor lighting; artificial light at night; lighting policy; solid-state lighting; blue light  
  Abstract Public and private lighting account for a relevant share of the overall electric power consumption worldwide. The pressing need of reducing the carbon dioxide emissions as well as of lowering the lumen•hour price tag has fostered the search for alternative lighting technologies to substitute for the incandescent and gas-discharge based lamps. The most successful approach to date, solid-state lighting, is already finding its way into the public lighting market, very often helped by substantial public investments and support. LED-based sources have distinct advantages: under controlled conditions their efficacy equals or surpasses that of conventional solutions, their small source size allows for an efficient collimation of the lightbeam (delivering the photons where they are actually needed and reducing lightspill on the surrounding areas), and they can be switched and/or dimmed on demand at very high rates, thus allowing for a tailored schedule of lighting. However, energy savings and carbon dioxide reduction are not the only crucial issues faced by present day lighting. A growing body of research has shown the significance of the spectral composition of light when it comes to assess the detrimental effects of artificial light-at-night (ALAN). The potential ALAN blueshift associated to the deployment of LED-based lighting systems has raised sensible concerns about its scientific, cultural, ecological and public health consequences, which can be further amplified if an increased light consumption is produced due to the rebound effect. This contribution addresses some of the challenges that these issues pose to the Optics and Photonics community.  
  Address Univ. de Santiago de Compostela, Spain; salva.bara@usc.es  
  Corporate Author Thesis  
  Publisher SPIE 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 Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1135  
Permanent link to this record
 

 
Author Walker, C.E.; Pompea, S.M. url  doi
openurl 
  Title National education program for energy efficient illumination engineering Type Journal Article
  Year 2011 Publication Proceedings of SPIE Eco-Photonics 2011, Strasbourg, France, March 2011. Abbreviated Journal  
  Volume (down) 8065 Issue Pages 80650Q-1  
  Keywords Skyglow; Illumination engineering; Pollution; Schools and universities; Observatories; Astronomy; Eye  
  Abstract About one-third of outdoor lighting escapes unused into the sky, wasting energy and causing sky glow. Because of excessive sky glow around astronomical facilities, the National Optical Astronomy Observatory has a strong motivation to lead light pollution education efforts. While our original motivation of preserving the dark skies near observatories is still important, energy conservation is a critical problem that needs to be addressed nationwide. To address this problem we have created an extensive educational program on understanding and measuring light pollution. A set of four learning experiences introduces school students at all grade levels to basic energy-responsive illumination engineering design principles that can minimize light pollution. We created and utilize the GLOBE at Night citizen science light pollution assessment campaign as a cornerstone activity. We also utilize educational activities on light shielding that are introduced through a teaching kit. These two components provide vocabulary, concepts, and visual illustrations of the causes of light pollution. The third, more advanced component is the school outdoor lighting audit, which has students perform an audit and produce a revised master plan for compliant lighting. These learning experiences provide an integrated learning unit that is highly adaptable for U.S. and international education efforts in this area.  
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  Notes Approved no  
  Call Number LoNNe @ kagoburian @ Serial 547  
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Author Dickinson, L.G.; Boselly, S.E.; Burgmann, W.S. url  openurl
  Title Defense Meteorological Satellite Program (DMSP) – User's Guide Type Report
  Year 1974 Publication Abbreviated Journal  
  Volume (down) ADA007678 Issue Pages  
  Keywords Remote Sensing  
  Abstract The capabilities of the spacecraft, sensors, and data processor for the Defense Meteorological Satellite Program are described. Many meteorological and geophysical uses of these data are examined, and examples used to illustrate the capabilities of the system to tailor the imagery for a large variety of present and future users.  
  Address AIR WEATHER SERVICE SCOTT AFB IL  
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  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2387  
Permanent link to this record
 

 
Author Aubé, M.; Franchomme-Fossé, L.; Robert-Staehler, P.; Houle, V. url  doi
openurl 
  Title Light pollution modeling and detection in a heterogeneous environment: toward a night time aerosol optical depth retrieval method. Type Journal Article
  Year 2005 Publication Proceedings of SPIE 2005 -- Volume 5890, San Diego, California, USA. Abbreviated Journal  
  Volume (down) 5890 Issue Pages  
  Keywords Skyglow; aerosol optical depth;  remote sensing; light pollution; artificial skyglow  
  Abstract Tracking the Aerosol Optical Depth (AOD) is of particular importance in monitoring aerosol contributions to global radiative forcing. Until now, the two standard techniques used for retrieving AOD were; (i) sun photometry, and (ii) satellite based approaches, such as based DDV (Dense Dark Vegetation) inversion algorithms. These methods are only available for use during daylight time since they are based on direct or indirect observation of sunlight. Few attempts have been made to measure AOD behaviour at night. One such method uses spectrally ­ calibrated stars as reference targets but the number of available stars is limited. This is especially true for urban sites where artificial lighting hides most  of these stars. In this research, we  attempt  to provide an alternate method, one  which exploits artificial sky glow or light pollution. This methodology links a 3D light pollution model with in situ light pollution measurements. The basic idea is to adjust an AOD value into the model in order to fit measured light pollution. This method requires an accurate model that includes spatial heterogeneity in lighting angular geometry, in lighting spectral dependence, in ground spectral reflectance and in topography. This model, named ILLUMINA, computes 1st and 2nd order molecular and aerosol scattering, as well as aerosol absorption. These model features represent major improvements to previous light pollution models. Therefore, new possibilities for light pollution studies will arise, many of which are of particular interest to the astronomical community. In this paper we will present a first sensitive study applied to the ILLUMINA model.  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ kagoburian @ Serial 554  
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