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Author (up) Ceola, S.; Montanari, A.; Parajka, J.; Viglione, A.; Blöschl, G.; Laio, F.
Title Human signatures derived from nighttime lights along the Eastern Alpine river network in Austria and Italy Type Conference Article
Year 2016 Publication Abbreviated Journal
Volume Issue Pages
Keywords Remote Sensing; Society; nightlights; human presence; river network; Strahler order; DMSP-OLS; OLS; DMSP-OLS; Austria; Italy; Eastern Alpine
Abstract Understanding how human settlements and economic activities are distributed with reference to the geographical location of streams and rivers is of fundamental relevance for several issues, such as flood risk management, drought management related to increased water demands by human population, fluvial ecosystem services, water pollution and water exploitation. Besides the spatial distribution, the evolution in time of the human presence constitutes an additional key question. This work aims at understanding and analysing the spatial and temporal evolution of human settlements and associated economic activity, derived from nighttime lights, in the Eastern Alpine region. Nightlights, available at a fine spatial resolution and for a 22-year period, constitute an

excellent data base, which allows one to explore in details human signatures. In this experiment, nightlights are associated to five distinct distance-from-river classes. Our results clearly point out an overall enhancement of human presence across the considered distance classes during the last 22 years, though presenting some differences among the study regions. In particular, the river network delineation, by considering different groups of river pixels based on the Strahler order, is found to play a central role in the identification of nightlight spatio-temporal trends.
Address Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Università di Bologna, Bologna, Italy
Corporate Author Thesis
Publisher International Association of Hydrological Sciences 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 7th International Water Resources Management Conference of ICWRS, 18–20 May 2016, Bochum, Germany
Notes Approved no
Call Number IDA @ john @ Serial 1432
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Author (up) Nam, S.; Park, S.-E.; Shin, H.-C.
Title Accessing the economic value of night view of bridge using contingent valuation method: the case of South Korea's Han-River bridge Type Journal Article
Year 2015 Publication International Journal of Culture, Tourism and Hospitality Research Abbreviated Journal Int. J. of Culture, Tourism and Hospitality Res.
Volume 9 Issue 3 Pages 360-370
Keywords Economics; South Korea; Korea; Han River Bridge; contingent valuation method; Viewshed analysis; Seoul
Abstract Purpose

The purpose of this study is to estimate an individual’s probability of preservation the night view of Han-River Bridge at tax using the CVM; and to present the effects of 4Es on experience economy theory.

Design/methodology/approach

The on-site survey was conducted in the 11 district Han-river parks; Gwangnaru, Jamsil, Ttukseom, Jamwon, Banpo, Yeechon, Yeouido, Mangwon, Nanji, Ganseo and Yanghwa district including 24 bridge ssuch as Banpo, Olympic Bridge during the 8-9pm around the lighting and 9-10pm peak time of lighting.

Findings

Truncated mean WTP indicates that the economic value of the night view of Han-River Bridge is 49,575 won (about U.S. $50) per household, which implies the significance of the preservation value of the night view.

Research limitations/implications

This study sets a hypothetical market and there are limitations on hypothetical bias of the DC CVM. For the future study, a survey with a specific real payment vehicle in an attempt to reduce hypothetical bias can be a tool for the prevention of the overestimation.

Practical implications

Through the study, Seoul city has to invest aggressively on the night view landscape business of Han River bridge, which can become a landmark and lots of attraction effect of tourists. Since this study’s core aim was to justify the economic value of the night-view of the Han-River bridges, the estimated amount strongly supports the lighting business of the Han-River bridge.

Originality/value

The results of this research may help policy makers of Han-River to establish practical decision whether improving and preserving the Han-River’s night view lighting business are worth the value.
Address Kyunghee University, Seoul, South Korea
Corporate Author Thesis
Publisher Emerald Group Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1750-6182 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1216
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Author (up) Perkin, E.K.; Hölker, F.; Tockner, K.
Title The effects of artificial lighting on adult aquatic and terrestrial insects Type Journal Article
Year 2014 Publication Freshwater Biology Abbreviated Journal Freshw Biol
Volume 59 Issue 2 Pages 368-377
Keywords biodiversity; connectivity; dispersal; high-pressure sodium lamp; light pollution; river
Abstract There is a growing concern that artificial light might affect local insect populations and disrupt their dispersal across the landscape. In this study, we investigated experimentally the effect of artificial light on flying insects in the field, with an emphasis on aquatic insects. We asked whether lights prevented the ability of insects to disperse across the landscape, a process that is crucial in colonising restored habitats.

We set up six, c. 3.5 m high downward facing high-pressure sodium streetlights along a permanently connected oxbow in the Spree River of eastern Germany. We collected insects using 12 flight intercept traps, each with trays at three different heights (0.5, 1.5 and 2.5 m), placed at distances 0, 3, 40 and 75 m from the lights and 5, 8 and 80 m from water. The number of emerging aquatic insects in the study area was measured with six emergence traps. We emptied the traps 22 times between June and September 2010; the lights were on for 11 of these nights and off for the other 11.

In total, we caught almost 27 times as many insects at traps 0 m from the lights when the lights were on than when they were off. Most insects caught when the lights were on were aquatic, with Diptera being the most common order. Furthermore, the proportion of aquatic insects caught at traps 0, 3 and 40 m from the lights when they were on was significantly higher than when they were off. On lit nights, more aquatic insects were captured per hour and m2 (area in which flying insects were intercepted) at traps 0 m from the lights than emerged from per square metre per hour from the Spree River.

Our results suggest that adult aquatic insects can be negatively affected by artificial light and that city planners should take this into account when designing lighting systems along rivers.
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 0046-5070 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 107
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Author (up) Picchi, M.S.; Avolio, L.; Azzani, L.; Brombin, O.; Camerini, G.
Title Fireflies and land use in an urban landscape: the case of Luciola italica L. (Coleoptera: Lampyridae) in the city of Turin Type Journal Article
Year 2013 Publication Journal of Insect Conservation Abbreviated Journal J Insect Conserv
Volume 17 Issue 4 Pages 797-805
Keywords Turin; insects; Coleoptera Lampyridae; Luciola italica; Urban environment; Fireflies; Light pollution; Ecological corridors; Green areas; Po River; Italy
Abstract Research was carried out in the city of Turin (Northern Italy) in order to assess the suitability of the urban environment for fireflies.The study started in 2007 with an artistic and scientific project promoted by Parco Arte Vivente (PAV—Park of living art). Citizens joining the project recorded 18 areas where they could observe fireflies, which were identified as Luciola italica L. (Coleoptera Lampyridae). All of the 18 areas recorded by citizens were then visited during the summer of 2009 and the abundance of L. italica was estimated using transects. In 12 sites the presence of the firefly was confirmed. The habitat structures of L. italica were woods interspersed with clearings in the urban districts in the hills, and parks along rivers in the lower and more populated part of the city. In sites where fireflies were observed, the level of illuminance measured was significantly lower than in areas where L. italica was absent. The analysis of the landscape around the study areas showed a negative correlation between the extent of urbanization and fireflies abundance. Survival of L. italica populations in the urban area of Turin is influenced by the extent of green areas and the level of artificial illumination. Parks lying among rivers preserve a level of darkness suitable for fireflies and are connected by woody strips growing along the banks of rivers, that probably function as ecological corridors.
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 1366-638X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 108
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