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Author Allik, T.; Ramboyong, L.; Roberts, M.; Walters, M.; Soyka, T.; Dixon, R.; Cho, J.
Title Enhanced oil spill detection sensors in low-light environments Type Conference Article
Year 2016 Publication Proc. SPIE 9827, Ocean Sensing and Monitoring VIII, 98270B (May 17, 2016) Abbreviated Journal Proc. SPIE 9827
Volume Issue Pages
Keywords Instrumentation; Sensors; Cameras; Long wavelength infrared; Short wave infrared radiation; Spectroscopy; Calibration; Remote sensing; Water; Near infrared; Night vision
Abstract Although advances have been made in oil spill remote detection, many electro-optic sensors do not provide real-time images, do not work well under degraded visual environments, nor provide a measure of extreme oil thickness in marine environments. A joint program now exists between BSEE and NVESD that addresses these capability gaps in remote sensing of oil spills. Laboratory experiments, calibration techniques, and field tests were performed at Fort Belvoir, Virginia; Santa Barbara, California; and the Ohmsett Test Facility in Leonardo, New Jersey. Weathered crude oils were studied spectroscopically and characterized with LWIR, and low-light-level visible/NIR, and SWIR cameras. We designed and fabricated an oil emulsion thickness calibration cell for spectroscopic analysis and ground truth, field measurements. Digital night vision cameras provided real-time, wide-dynamic-range imagery, and were able to detect and recognize oil from full sun to partial moon light. The LWIR camera provided quantitative oil analysis (identification) for >1 mm thick crude oils both day and night. Two filtered, co-registered, SWIR cameras were used to determine whether oil thickness could be measured in real time. Spectroscopic results revealed that oil emulsions vary with location and weathered state and some oils (e.g., ANS and Santa Barbara seeps) do not show the spectral rich features from archived Deep Water Horizon hyperspectral data. Multi-sensor imagery collected during the 2015 USCG Airborne Oil Spill Remote Sensing and Reporting Exercise and the design of a compact, multiband imager are discussed.
Address Active EO Inc.
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Publisher SPIE Place of Publication Editor
Language English Summary Language English Original Title
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Call Number IDA @ john @ Serial 1475
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Author Brady, A.; Willis, B.; Harder, L.; Vizel, P.
Title Lunar Phase Modulates Circadian Gene Expression Cycles in the Broadcast Spawning Coral Acropora millepora Type Journal Article
Year 2016 Publication Biological Bulletin Abbreviated Journal Biol Bullet
Volume 230 Issue 2 Pages 130-142
Keywords Animals; corals; Acropora millepora; lunar cycle; Circadian Rhythm; gene expression; moon
Abstract Many broadcast spawning corals in multiple reef regions release their gametes with incredible temporal precision just once per year, using the lunar cycle to set the night of spawning. Moonlight, rather than tides or other lunar-regulated processes, is thought to be the proximate factor responsible for linking the night of spawning to the phase of the Moon. We compared patterns of gene expression among colonies of the broadcast spawning coral Acropora millepora at different phases of the lunar cycle, and when they were maintained under one of three experimentally simulated lunar lighting treatments: i) lunar lighting conditions matching those on the reef, or lunar patterns mimicking either ii) constant full Moon conditions, or iii) constant new Moon conditions. Normal lunar illumination was found to shift both the level and timing of clock gene transcription cycles between new and full moons, with the peak hour of expression for a number of genes occurring earlier in the evening under a new Moon when compared to a full Moon. When the normal lunar cycle is replaced with nighttime patterns equivalent to either a full Moon or a new Moon every evening, the normal monthlong changes in the level of expression are destroyed for most genes. In combination, these results indicate that daily changes in moonlight that occur over the lunar cycle are essential for maintaining normal lunar periodicity of clock gene transcription, and this may play a role in regulating spawn timing. These data also show that low levels of light pollution may have an impact on coral biological clocks.
Address Department of Biological Science, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada; pvize(at)ucalgary.ca
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Publisher Marine Biological Laboratory Place of Publication Editor
Language English Summary Language English Original Title
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Notes Approved no
Call Number IDA @ john @ Serial 1476
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Author Zielinska-Dabkowska, K.
Title Case study of “Walk”: a video installation integrated into the facade of a store in Zurich/CH Type Journal Article
Year 2016 Publication Professional Lighting Design Abbreviated Journal Prof Lighting Des
Volume Issue 101 Pages 52-58
Keywords Lighting; planning; commentary
Abstract With the rapid development of solid state lighting technology and the availability of LED light sources, coupled with the benefits they offer such as energy efficiency, long lifespan and the fact that they can be controlled and programmed, we are now finding LEDs being more widely used for animated advertising. In spite of the pace at which SSL is developing, or perhaps because of this, there is a distinct lack of evaluation guidelines or recommendations for professional designers. It is therefore essential that more research is carried out on this issue on an international scale, and that experts in the field get their heads together in order to formulate some basic guidelines that can be applied in practice.
Address Faculty of Architecture & Design, Hochschule Wismar, Wismar, Germany; k.zielinska-dabkowska(at)hs-wismar.de
Corporate Author Thesis
Publisher Verlag Place of Publication Editor
Language English Summary Language English Original Title
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Notes Approved no
Call Number IDA @ john @ Serial 1479
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Author Grunsven van, Roy H.A.; Creemers, Raymond; Joosten, Kris; Donners Maurice; Veenendaal, Elmar M.
Title Behaviour of migrating toads under artificial lights differs from other phases of their life cycle Type Journal Article
Year 2016 Publication Amphibia-Reptilia Abbreviated Journal AMRE
Volume Issue Pages
Keywords animal, amphibia, Anura, fragmentation, light pollution, mitigation, phototaxis, spectra
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Call Number LoNNe @ schroer @ Serial 1568
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Author Schroer, S.; Hölker F.; Corcho, O.
Title The impact of citizen science on research about artificial light at night Type Journal Article
Year 2016 Publication Environmental Scientist Abbreviated Journal
Volume 25 Issue 2 Pages 18-24
Keywords citizen science; light pollution research
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Call Number LoNNe @ schroer @ Serial 1571
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