| Records |
| Author |
Posudin, Y. (n.d.) |
| Title |
Measurement of Light Pollution |
Type |
Journal Article |
| Year |
2014 |
Publication |
Methods of Measuring Environmental Parameters |
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Pages |
368-370 |
| Keywords |
Skyglow |
| Abstract |
Digital photography is based on the conversion of light by sensitive matrix (array of electronic photodetectors) to capture the image which is then digitized and stored as a computer file for further processing and printing. The spectral sensitivity of the cameras is in good agreement with the spectrum of action of the photosensitive hormone melatonin. Digital photography can be used to quantify light pollution acting on the physiology of living organisms. The chapter discusses the principles of spectrophotometry. A portable spectrophotometer for the measurement of light pollution is proposed by Cinzano. It consists of a cooled CCDcamera and a small spectrographic head which is equipped with a De Amici prism composed of two external crown prisms and an inner Flint prism. Sky quality meter (SQM) is a portable photometer for measuring sky brightness and for light pollution monitoring. This device collects the light from a wide solid angle. |
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LoNNe @ kagoburian @ |
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967 |
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| Author |
Mann, M.; Melaas, E.; Malik, A. |
| Title |
Using VIIRS Day/Night Band to Measure Electricity Supply Reliability: Preliminary Results from Maharashtra, India |
Type |
Journal Article |
| Year |
2016 |
Publication |
Remote Sensing |
Abbreviated Journal |
Remote Sensing |
| Volume |
8 |
Issue |
9 |
Pages |
711 |
| Keywords |
Remote Sensing; NPP-VIIRS; VIIRS-DNB; India; South Asia |
| Abstract |
Unreliable electricity supplies are common in developing countries and impose large socio-economic costs, yet precise information on electricity reliability is typically unavailable. This paper presents preliminary results from a machine-learning approach for using satellite imagery of nighttime lights to develop estimates of electricity reliability for western India at a finer spatial scale. We use data from the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the Suomi National Polar Partnership (SNPP) satellite together with newly-available data from networked household voltage meters. Our results point to the possibilities of this approach as well as areas for refinement. With currently available training data, we find a limited ability to detect individual outages identified by household-level measurements of electricity voltage. This is likely due to the relatively small number of individual outages observed in our preliminary data. However, we find that the approach can estimate electricity reliability rates for individual locations fairly well, with the predicted versus actual regression yielding an R2 > 0.5. We also find that, despite the after midnight overpass time of the SNPP satellite, the reliability estimates derived are representative of daytime reliability. |
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2072-4292 |
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LoNNe @ kyba @ |
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1515 |
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Zamorano Calvo, J.; Sánchez de Miguel, A.; Nievas Rosillo, M.; Tapia Ayuga, C. |
| Title |
NixNox procedure to build Night Sky Brightness maps from SQM photometers observations |
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Report |
| Year |
2014 |
Publication |
E-prints Complutense |
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26982 |
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Skyglow; measurement; SQM; SQM-L; mapping |
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The NixNox procedure to build all-sky maps of the nocturnal night sky brightness using SQM photometers is described. Astronomers belonging to amateur associations in Spain are using this observational method to obtain data of their preferred sites of observation to characterize the astronomical quality of the sky and the sources of light pollution. |
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Departamento de AstrofÃsica y Ciencias de la Atmósfera, Universidad Complutense – 28040 Madrid, Spain |
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Universidad Complutense |
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Madrid |
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English |
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English |
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IDA @ john @ |
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1435 |
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Boyce, P.R.; Gutkowski, J.M. |
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The if, why and what of street lighting and street crime: A review |
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Journal Article |
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1995 |
Publication |
Lighting Research and Technology |
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Lighting Research and Technology |
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27 |
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2 |
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103-112 |
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Society; Safety |
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1477-1535 |
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LoNNe @ kagoburian @ |
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1009 |
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| Author |
Ringwald, R.; Rönitzsch, H.; Riedel, M. |
| Title |
Praxishandbuch Öffentliche Beleuchtung – Wirtschaftlichkeit, Recht, Technik |
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Journal Article |
| Year |
2013 |
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1. Aufl. DIN Deutsches Institut für Normung e.V., hrsg., Berlin Wien Zürich: Beuth Verlags GmbH. |
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Lighting |
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LoNNe @ kagoburian @ |
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1058 |
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