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Author Aceituno, J.; Sánchez, S.F.; Aceituno, F.J.; Galadí-Enríquez, D.; Negro, J.J.; Soriguer, R.C.; Gomez, G.S.
Title (up) An All-Sky Transmission Monitor: ASTMON Type Journal Article
Year 2011 Publication Publications of the Astronomical Society of the Pacific Abbreviated Journal Publications of the Astronomical Society of the Pacific
Volume 123 Issue 907 Pages 1076-1086
Keywords monitoring; light at night; light pollution; skyglow
Abstract We present here the All-Sky Transmission Monitor (ASTMON), designed to perform a continuous monitoring of the surface brightness of the complete night sky in several bands. The data acquired are used to derive, in addition, a subsequent map of the multiband atmospheric extinction at any location in the sky and a map of the cloud coverage. The instrument has been manufactured to withstand extreme weather conditions and to remain operative. Designed to be fully robotic, it is ideal to be installed outdoors as a permanent monitoring station. The preliminary results based on two of the currently operative units (at Doñana National Park, Huelva, and at the Calar Alto Observatory, Almería, Spain) are presented here. The parameters derived using ASTMON are in good agreement with those previously reported, which illustrates the validity of the design and the accuracy of the manufacturing. The information provided by this instrument will be presented in forthcoming articles, once we have accumulated a statistically significant amount of data.
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ISSN 0004-6280 ISBN Medium
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Notes Approved no
Call Number IDA @ john @ Serial 195
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Author Bowden, J.
Title (up) An Analysis of Factors Affecting Catches of Insects in Light-Traps Type Journal Article
Year 1982 Publication Bulletin of Entomological Research Abbreviated Journal Bull. Entomol. Res.
Volume 72 Issue 4 Pages 535-556
Keywords Ecology; Animals
Abstract Analysis of published data on catches of insects in light-traps with a variety of light sources and of different designs showed that all conformed to the previously proposed model describing the functioning of a light-trap: catch = constant × where W = trap illumination and I = background illumination. Light-trap catches in differing cloud conditions and in open and woodland situations also varied as predicted by the model. A table of correction factors for different amounts of cloud cover is provided. The results are discussed in relation to use of light-traps and interpretation of light-trap data.
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ISSN 0007-4853 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2589
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Author Mazharul Hoque, M.
Title (up) An analysis of fatal bicycle accidents in victoria (Australia) with a special reference to nighttime accidents Type Journal Article
Year 1990 Publication Accident Analysis & Prevention Abbreviated Journal Accident Analysis & Prevention
Volume 22 Issue 1 Pages 1-11
Keywords Lighting
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ISSN 0001-4575 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 635
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Author Bille, M.; Sorensen, T.F.
Title (up) An Anthropology of Luminosity: The Agency of Light Type Journal Article
Year 2007 Publication Journal of Material Culture Abbreviated Journal Journal of Material Culture
Volume 12 Issue 3 Pages 263-284
Keywords Society
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ISSN 1359-1835 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 999
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Author Duan, X.; Hu, Q.; Zhao, P.; Wang, S.; Ai, M.
Title (up) An Approach of Identifying and Extracting Urban Commercial Areas Using the Nighttime Lights Satellite Imagery Type Journal Article
Year 2020 Publication Remote Sensing Abbreviated Journal Remote Sensing
Volume 12 Issue 6 Pages 1029
Keywords Remote Sensing
Abstract Urban commercial areas can reflect the spatial distribution of business activities. However, the scope of urban commercial areas cannot be easily detected by traditional methods because of difficulties in data collection. Considering the positive correlation between business scale and nighttime lighting, this paper proposes a method of urban commercial areas detection based on nighttime lights satellite imagery. First, an imagery preprocess model is proposed to correct imageries and improve efficiency of cluster analysis. Then, an exploratory spatial data analysis and hotspots clustering method is employed to detect commercial areas by geographic distribution metric with urban commercial hotspots. Furthermore, four imageries of Wuhan City and Shenyang City are selected as an example for urban commercial areas detection experiments. Finally, a comparison is made to find out the time and space factors that affect the detection results of the commercial areas. By comparing the results with the existing map data, we are convinced that the nighttime lights satellite imagery can effectively detect the urban commercial areas. The time of image acquisition and the vegetation coverage in the area are two important factors affecting the detection effect. Harsh weather conditions and high vegetation coverage are conducive to the effective implementation of this method. This approach can be integrated with traditional methods to form a fast commercial areas detection model, which can then play a role in large-scale socio-economic surveys and dynamic detection of commercial areas evolution. Hence, a conclusion can be reached that this study provides a new method for the perception of urban socio-economic activities.
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Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2072-4292 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2870
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