|   | 
Details
   web
Records
Author Sharma, R.C.; Tateishi, R.; Hara, K.; Gharechelou, S.; Iizuka, K.
Title Global mapping of urban built-up areas of year 2014 by combining MODIS multispectral data with VIIRS nighttime light data Type Journal Article
Year 2016 Publication International Journal of Digital Earth Abbreviated Journal International Journal of Digital Earth
Volume Issue Pages 1-17
Keywords Remote Sensing
Abstract An improved methodology for the extraction and mapping of urban built-up areas at a global scale is presented in this study. The Moderate Resolution Imaging Spectroradiometer (MODIS)-based multispectral data were combined with the Visible Infrared Imager Radiometer Suite (VIIRS)-based nighttime light (NTL) data for robust extraction and mapping of urban built-up areas. The MODIS-based newly proposed Urban Built-up Index (UBI) was combined with NTL data, and the resulting Enhanced UBI (EUBI) was used as a single master image for global extraction of urban built-up areas. Due to higher variation of the EUBI with respect to geographical regions, a region-specific threshold approach was used to extract urban built-up areas. This research provided 500-m-resolution global urban built-up map of year 2014. The resulted map was compared with three existing moderate-resolution global maps and one high-resolution map in the United States. The comparative analysis demonstrated finer details of the urban built-up cover estimated by the resultant map.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1753-8947 ISBN Medium
Area Expedition Conference
Notes (up) Approved no
Call Number LoNNe @ kyba @ Serial 1423
Permanent link to this record
 

 
Author Seltmann, S.; Trost, L.; Ter Maat, A.; Gahr, M.
Title Natural melatonin fluctuation and its minimally invasive simulation in the zebra finch Type Journal Article
Year 2016 Publication PeerJ Abbreviated Journal
Volume 4 Issue Pages e1939
Keywords Animals
Abstract Melatonin is a key hormone in the regulation of circadian rhythms of vertebrates, including songbirds. Understanding diurnal melatonin fluctuations and being able to reverse or simulate natural melatonin levels are critical to investigating the influence of melatonin on various behaviors such as singing in birds. Here we give a detailed overview of natural fluctuations in plasma melatonin concentration throughout the night in the zebra finch. As shown in previous studies, we confirm that “lights off” initiates melatonin production at night in a natural situation. Notably, we find that melatonin levels return to daytime levels as early as two hours prior to the end of the dark-phase in some individuals and 30 min before “lights on” in all animals, suggesting that the presence of light in the morning is not essential for cessation of melatonin production in zebra finches. Thus, the duration of melatonin production seems not to be specified by the length of night and might therefore be less likely to directly couple circadian and annual rhythms. Additionally, we show that natural melatonin levels can be successfully simulated through a combination of light-treatment (daytime levels during subjective night) and the application of melatonin containing skin-cream (nighttime levels during subjective day). Moreover, natural levels and their fluctuation in the transition from day to night can be imitated, enabling the decoupling of the effects of melatonin, for example on neuronal activity, from sleep and circadian rhythmicity. Taken together, our high-resolution profile of natural melatonin levels and manipulation techniques open up new possibilities to answer various melatonin related questions in songbirds.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2167-8359 ISBN Medium
Area Expedition Conference
Notes (up) Approved no
Call Number LoNNe @ kyba @ Serial 1425
Permanent link to this record
 

 
Author van Schalkwyk, I.; Venkataraman, N.; Shankar, V.; Milton, J.; Bailey, T.; Calais, K.
Title Evaluation of the Safety Performance of Continuous Mainline Roadway Lighting on Freeway Segments in Washington State Type Report
Year 2016 Publication Abbreviated Journal
Volume Issue Pages
Keywords Public Safety; traffic; traffic safety; road safety; continuous roadway lighting; Washington; United States
Abstract Washington State Department of Transportation (WSDOT) evaluated continuous roadway lighting on mainline freeway segments in Washington State. An extensive literature review on the safety performance of roadway lighting was completed. As part of this research effort WSDOT developed multivariate random parameter (RP) models with specific lighting variables for continuous lighting on mainline freeway segments. Roadway lighting is often used as a countermeasure to address nighttime crashes and this research evaluates common assumption related to roadway lighting. The models developed for this research use crashes from the end of civil dusk twilight to the start of civil dawn twilight since lighting systems are of limited value outside these timeframes. Natural light conditions were estimated for crashes based on location and time of the crash event. Based on the RP results, the research team concludes that the contribution of continuous illumination to nighttime crash reduction is negligible. In addition to the findings on safety performance, a pilot LED project on US101 demonstrated that LED roadway lighting can significantly increase energy efficiency and environmental stewardship (e.g., reducing greenhouse gas emissions) while maintaining safety performance outcomes. The research team recommended modification to WSDOT design policy, including removal of the requirement of continuous mainline lighting and reduction of lighting where segment specific analysis indicates appropriate.
Address Washington State Department of Transportation 310 Maple Park Ave SE, Olympia, WA, USA
Corporate Author Thesis
Publisher Washington State Department of Transportation Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title WSDOT Research Report Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes (up) Approved no
Call Number IDA @ john @ Serial 1427
Permanent link to this record
 

 
Author Vozzi, C.; Ramponi, R.
Title 2015 International Year of Light and beyond Type Magazine Article
Year 2016 Publication Journal of Optics Abbreviated Journal J. Opt.
Volume 18 Issue 1 Pages 010201
Keywords Commentary; International Year of Light; IYL; IYL2015; society
Abstract The 2015 International Year of Light and Light-based Technologies (IYL) is now approaching its end. It has been a year full of excitement worldwide, involving people of all ages in an incredible number of different activities
Address Institute for Photonics and Nanotechnologies (IFN-CNR) Piazza Leonardo da Vinci 32, I-20133 Milan, Italy
Corporate Author Thesis
Publisher IOP Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2040-8978 ISBN Medium
Area Expedition Conference
Notes (up) Approved no
Call Number IDA @ john @ Serial 1428
Permanent link to this record
 

 
Author Lucas, M.A.; Chahl, J.S.
Title Challenges for biomimetic night time sky polarization navigation Type Conference Article
Year 2016 Publication Proceedings of the SPIE Abbreviated Journal Proc SPIE
Volume 9797 Issue Pages
Keywords Animals; detection of light; biology; polarization; navigation
Abstract Studies on some species of insects have shown them to use the polarization pattern cast by the moon in the night sky to control heading. Additional heading cues are of value to autonomous systems, since the earth’s magnetic field is not uniform, often not available and is substantially modified by local phenomena. In addition to the required low-light sensitivity of a night time polarization compass, additional complexities caused by the relative intensity of terrestrial sources must be overcome. We will show that the end result will tend to be a less reliable compass than the equivalent day time polarization device.
Address Univ. of South Australia, Australia
Corporate Author Thesis
Publisher SPIE Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes (up) Approved no
Call Number IDA @ john @ Serial 1430
Permanent link to this record