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Elvidge, C.D.; Baugh, K.E.; Zhizhin, M.; Hsu, F.-C. |
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Title |
Why VIIRS data are superior to DMSP for mapping nighttime lights |
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2013 |
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Proceedings of the Asia-Pacific Advanced Network |
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APAN Proceedings |
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35 |
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62 |
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Abstract |
For more than forty years the U.S. Air Force Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) has been the only satellite system collecting global low-light imaging data. A series of twenty-four DMSP satellites have collected low-light imaging data. The design of the OLS has not changed significantly since satellite F-4 flew in the late 1970’s and OLS data have relatively coarse spatial resolution, limited dynamic range, and lack in-flight calibration. In 2011 NASA and NOAA launched the Suomi National Polar Partnership (SNPP) satellite carrying the first Visible Infrared Imaging Radiometer Suite (VIIRS) instrument. The VIIRS collects low light imaging data and has several improvements over the OLS’ capabilities. In this paper we contrast the nighttime low light imaging collection capabilities of these two systems and compare their data products. |
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2227-3026 |
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IDA @ john @ |
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198 |
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Mazor, T.; Levin, N.; Possingham, H.P.; Levy, Y.; Rocchini, D.; Richardson, A.J.; Kark, S. |
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Can satellite-based night lights be used for conservation? The case of nesting sea turtles in the Mediterranean |
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Journal Article |
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2013 |
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Biological Conservation |
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Biological Conservation |
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159 |
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63-72 |
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Artificial night lights; Caretta caretta; Chelonia mydas; Coastal conservation; Satellite imagery; Sea turtle conservation |
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Artificial night lights pose a major threat to multiple species. However, this threat is often disregarded in conservation management and action because it is difficult to quantify its effect. Increasing availability of high spatial-resolution satellite images may enable us to better incorporate this threat into future work, particularly in highly modified ecosystems such as the coastal zone. In this study we examine the potential of satellite night light imagery to predict the distribution of the endangered loggerhead (Caretta caretta) and green (Chelonia mydas) sea turtle nests in the eastern Mediterranean coastline. Using remote sensing tools and high resolution data derived from the SAC-C satellite and the International Space Station, we examined the relationship between the long term spatial patterns of sea turtle nests and the intensity of night lights along Israel’s entire Mediterranean coastline. We found that sea turtles nests are negatively related to night light intensity and are concentrated in darker sections along the coast. Our resulting GLMs showed that night lights were a significant factor for explaining the distribution of sea turtle nests. Other significant variables included: cliff presence, human population density and infrastructure. This study is one of the first to show that night lights estimated with satellite-based imagery can be used to help explain sea turtle nesting activity at a detailed resolution over large areas. This approach can facilitate the management of species affected by night lights, and will be particularly useful in areas that are inaccessible or where broad-scale prioritization of conservation action is required. |
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ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia |
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0006-3207 |
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IDA @ john @ |
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213 |
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Bullough, J.D.; Donnell, E.T.; Rea, M.S. |
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To illuminate or not to illuminate: roadway lighting as it affects traffic safety at intersections |
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2013 |
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Accident; Analysis and Prevention |
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Accid Anal Prev |
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53 |
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65-77 |
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Lighting; Accident Prevention/*methods; Accidents, Traffic/*prevention & control/psychology/statistics & numerical data; Cross-Sectional Studies; *Environment Design; Humans; *Lighting; Minnesota; Models, Statistical; Photoperiod; Psychomotor Performance; Regression Analysis; Safety/statistics & numerical data; Visual Perception |
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A two-pronged effort to quantify the impact of lighting on traffic safety is presented. In the statistical approach, the effects of lighting on crash frequency for different intersection types in Minnesota were assessed using count regression models. The models included many geometric and traffic control variables to estimate the association between lighting and nighttime and daytime crashes and the resulting night-to-day crash ratios. Overall, the presence of roadway intersection lighting was found to be associated with an approximately 12% lower night-to-day crash ratio than unlighted intersections. In the parallel analytical approach, visual performance analyses based on roadway intersection lighting practices in Minnesota were made for the same intersection types investigated in the statistical approach. The results of both approaches were convergent, suggesting that visual performance improvements from roadway lighting could serve as input for predicting improvements in crash frequency. A provisional transfer function allows transportation engineers to evaluate alternative lighting systems in the design phase so selections based on expected benefits and costs can be made. |
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Lighting Research Center, Rensselaer Polytechnic Institute, 21 Union Street, Troy, NY 12180, USA |
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English |
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0001-4575 |
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PMID:23377085 |
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LoNNe @ kagoburian @ |
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627 |
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Author |
Lewanzik, D.; Voigt, C.C. |
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Title |
Lichtverschmutzung und die Folgen für Fledermäuse |
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2013 |
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In: Held, M., Hölker, F. & Jessel, B. (2013) Schutz der Nacht – Lichtverschmutzung, Biodiversität und Nachtlandschaft. – BfN-Skripten |
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336 |
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65-68 |
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German |
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LoNNe @ kagoburian @ |
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685 |
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Author |
Brüning, A.; Hölker, F. |
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Title |
Lichtverschmutzung und die Folgen für Fische. |
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Year |
2013 |
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In: Held, M., Hölker, F. & Jessel, B (2013) Schutz der Nacht – Lichtverschmutzung, Biodiversität und Nachtlandschaft. – BfN-Skripten |
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336 |
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69-72 |
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Animals |
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LoNNe @ kagoburian @ |
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688 |
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