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Author Min, B.; O'Keeffe, Z.; Zhang, F.
Title Whose Power Gets Cut? Using High-Frequency Satellite Images to Measure Power Supply Irregularity Type (up) Book Whole
Year 2017 Publication Policy Research Working Papers Abbreviated Journal
Volume Issue Pages
Keywords Remote Sensing
Abstract In many parts of the developing world, access to electricity is uneven and inconsistent, characterized by frequent and long hours of power outages. Many countries now engage in systematic load shedding because of persistent power shortages. When and where electricity is provided can have important impacts on welfare and growth. But quantifying those impacts is difficult because utility-level data on power outages are rarely available and not always reliable. This paper introduces a new method of tracking power outages from outer space. This measure identifies outage-prone areas by detecting excess fluctuations in light outputs. To develop these measures, the study processed the complete historical archive of sub-orbital Defense Meteorological Satellite Program's Operational Linescan System (DMSP-OLS) nighttime imagery captured over South Asia on every night since 1993. The analysis computes annual estimates of the Power Supply Irregularity index for all 600,000 villages in India from 1993 to 2013. The Power Supply Irregularity index measures are consistent with ground-based measures of power supply reliability from the Indian Human Development Survey, and with feeder-level outage data from one of the largest utilities in India. The study's methods open new opportunities to study the determinants of power outages as well as their impacts on welfare.
Address
Corporate Author Thesis
Publisher The World Bank Place of Publication Editor
Language Summary Language Original Title
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ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number NC @ ehyde3 @ Serial 2109
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Author Clayson, Hollis
Title Illuminated Paris, Essays on Art and Lighting in the Belle Époque Type (up) Book Whole
Year 2019 Publication Abbreviated Journal
Volume Issue Pages
Keywords History; Society; Art
Abstract
Address Chicago
Corporate Author Thesis
Publisher University of Chicago Press Place of Publication Chicago Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN 9780226593869 Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2231
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Author Guillemin, A.
Title The Heavens: An Illustrated Handbook of Popular Astronomy Type (up) Book Whole
Year 1867 Publication Abbreviated Journal
Volume Issue Pages
Keywords Skyglow
Abstract Relevant excerpt: In large towns, the thousands of gas-lamps or other lights render the observation of the Zodiacal Light very difficult, not to say impossible, at all times. On the other hand, in stations conveniently situated, it can be seen at the various epochs of the year, even in the temperate zones.
Address
Corporate Author Thesis
Publisher Richard Bently Place of Publication London Editor J. Norman Lockyer
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2537
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Author Wahl, F.; Kantermann, T.; Amft, O.
Title How much Light do you get? Estimating Daily Light Exposure using Smartphones Type (up) Conference Article
Year 2014 Publication Proceedings of the 2014 ACM International Symposium on Wearable Computers Abbreviated Journal Proc. of the 2014 ACM International Symposium on Wearable Computers
Volume n/a Issue n/a Pages 43-46
Keywords Instrumentation; light exposure; context inference, light intensity; light intake; circadian clock; circadian rhythm; mobile sensing
Abstract We present an approach to estimate a persons light exposure using smartphones. We used web-sourced weather reports combined with smartphone light sensor data, time of day, and indoor/outdoor information, to estimate illuminance around the user throughout a day. Since light dominates every human’s circadian rhythm and influences the sleep-wake cycle, we developed a smartphone-based system that does not re- quire additional sensors for illuminance estimation. To evaluate our approach, we conducted a free-living study with 12 users, each carrying a smartphone, a head-mounted light reference sensor, and a wrist-worn light sensing device for six consecutive days. Estimated light values were compared to the head-mounted reference, the wrist-worn device and a mean value estimate. Our results show that illuminance could be estimated at less than 20% error for all study participants, outperforming the wrist-worn device. In 9 out of 12 participants the estimation deviated less than 10% from the reference measurements.
Address ACTLab, Chair of Sensor Technology, University of Passau (florian.wahl@uni-passau.de)
Corporate Author Thesis
Publisher ACM Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1206
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Author Deda, P.; Elbertzhagen, I.; Klussmann, M.
Title Light Pollution and the impacts on biodiversity, species and their habitats Type (up) Conference Article
Year 2007 Publication International Conference in Defence of the Quality of the Night Sky and the Right to Observe the Stars, April 19-20,Starlight Initiative, Instituto de Astrofísica de Canarias , La Palma, Canary Islands, Spain Abbreviated Journal IAC
Volume Issue Pages 177–183
Keywords Ecology
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor Marín C, Jafari J
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 LoNNe @ kagoburian @ Serial 684
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