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Author Mard, J.; Di Baldassarre, G.; Mazzoleni, M.
Title Nighttime light data reveal how flood protection shapes human proximity to rivers Type Journal Article
Year 2018 Publication Science Advances Abbreviated Journal Sci Adv
Volume 4 Issue 8 Pages eaar5779
Keywords Remote Sensing
Abstract To understand the spatiotemporal changes of flood risk, we need to determine the way in which humans adapt and respond to flood events. One adaptation option consists of resettling away from flood-prone areas to prevent or reduce future losses. We use satellite nighttime light data to discern the relationship between long-term changes in human proximity to rivers and the occurrence of catastrophic flood events. Moreover, we explore how these relationships are influenced by different levels of structural flood protection. We found that societies with low protection levels tend to resettle further away from the river after damaging flood events. Conversely, societies with high protection levels show no significant changes in human proximity to rivers. Instead, such societies continue to rely heavily on structural measures, reinforcing flood protection and quickly resettling in flood-prone areas after a flooding event. Our work reveals interesting aspects of human adaptation to flood risk and offers key insights for comparing different risk reduction strategies. In addition, this study provides a framework that can be used to further investigate human response to floods, which is relevant as urbanization of floodplains continues and puts more people and economic assets at risk.
Address IHE Delft Institute for Water Education, 2611 AX Delft, Netherlands
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Language English Summary Language Original Title
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ISSN 2375-2548 ISBN Medium
Area Expedition Conference
Notes PMID:30140738; PMCID:PMC6105301 Approved no
Call Number (up) GFZ @ kyba @ Serial 1989
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Author Dunster, G.P.; de la Iglesia, L.; Ben-Hamo, M.; Nave, C.; Fleischer, J.G.; Panda, S.; de la Iglesia, H.O.
Title Sleepmore in Seattle: Later school start times are associated with more sleep and better performance in high school students Type Journal Article
Year 2018 Publication Science Advances Abbreviated Journal Sci. Adv.
Volume 4 Issue 12 Pages eaau6200
Keywords Human Health
Abstract Most teenagers are chronically sleep deprived. One strategy proposed to lengthen adolescent sleep is to delay secondary school start times. This would allow students to wake up later without shifting their bedtime, which is biologically determined by the circadian clock, resulting in a net increase in sleep. So far, there is no objective quantitative data showing that a single intervention such as delaying the school start time significantly increases daily sleep. The Seattle School District delayed the secondary school start time by nearly an hour. We carried out a pre-/post-research study and show that there was an increase in the daily median sleep duration of 34 min, associated with a 4.5% increase in the median grades of the students and an improvement in attendance.
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ISSN 2375-2548 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (up) GFZ @ kyba @ Serial 2131
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Author Kyba, C.C.M.; Kuester, T.; Sánchez de Miguel, A.; Baugh, K.; Jechow, A.; Hölker, F.; Bennie, J.; Elvidge, C.; Gaston, K.; Guanter, L.
Title Artificially lit surface of Earth at night increasing in radiance and extent Type Journal Article
Year 2017 Publication Science Advances Abbreviated Journal Sci Adv
Volume 3 Issue 11 Pages e1701528
Keywords Remote Sensing; Suomi NPP; VIIRS; light pollution; *economics
Abstract A central aim of the â??lighting revolutionâ? (the transition to solid-state lighting technology) is decreased energy consumption. This could be undermined by a rebound effect of increased use in response to lowered cost of light. We use the first-ever calibrated satellite radiometer designed for night lights to show that from 2012 to 2016, Earthâ??s artificially lit outdoor area grew by 2.2% per year, with a total radiance growth of 1.8% per year. Continuously lit areas brightened at a rate of 2.2% per year. Large differences in national growth rates were observed, with lighting remaining stable or decreasing in only a few countries. These data are not consistent with global scale energy reductions but rather indicate increased light pollution, with corresponding negative consequences for flora, fauna, and human well-being.
Address GFZ German Research Centre for Geosciences, Potsdam 14473, Germany; kyba(at)gfz-potsdam.de
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Publisher AAAS Place of Publication Editor
Language English Summary Language English Original Title
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ISSN 2375-2548 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (up) IDA @ john @ Serial 1789
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Author Moran, D.; Softley, R.; Warrant, E.J.
Title The energetic cost of vision and the evolution of eyeless Mexican cavefish Type Journal Article
Year 2015 Publication Science Advances Abbreviated Journal Science Advances
Volume 1 Issue 8 Pages e1500363-e1500363
Keywords vision; animals
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ISSN 2375-2548 ISBN Medium
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Notes Approved no
Call Number (up) LoNNe @ kyba @ Serial 1264
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Author Walch, O.J.; Cochran, A.; Forger, D.B.
Title A global quantification of “normal” sleep schedules using smartphone data Type Journal Article
Year 2016 Publication Science Advances Abbreviated Journal Science Advances
Volume 2 Issue 5 Pages e1501705-e1501705
Keywords Human Health; Sleep; *Circadian Rhythm; smartphone; society
Abstract The influence of the circadian clock on sleep scheduling has been studied extensively in the laboratory; however, the effects of society on sleep remain largely unquantified. We show how a smartphone app that we have developed, ENTRAIN, accurately collects data on sleep habits around the world. Through mathematical modeling and statistics, we find that social pressures weaken and/or conceal biological drives in the evening, leading individuals to delay their bedtime and shorten their sleep. A country’s average bedtime, but not average wake time, predicts sleep duration. We further show that mathematical models based on controlled laboratory experiments predict qualitative trends in sunrise, sunset, and light level; however, these effects are attenuated in the real world around bedtime. Additionally, we find that women schedule more sleep than men and that users reporting that they are typically exposed to outdoor light go to sleep earlier and sleep more than those reporting indoor light. Finally, we find that age is the primary determinant of sleep timing, and that age plays an important role in the variability of population-level sleep habits. This work better defines and personalizes “normal” sleep, produces hypotheses for future testing in the laboratory, and suggests important ways to counteract the global sleep crisis.
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Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2375-2548 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (up) LoNNe @ kyba @ Serial 1440
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