|   | 
Details
   web
Records
Author Pavlić K.; Andreić Z.
Title Comparison Of Night Sky Brightness Above Zagreb And A Nearby Rural Location 2014-2017 Type Journal Article
Year 2020 Publication Rudarsko-geološko-Naftni Zbornik Abbreviated Journal
Volume 35 Issue 2 Pages 45-56
Keywords Skyglow
Abstract The results of monitoring light pollution near the center of Zagreb at the Faculty of Mining, Geology and Petroleum Engineering (RGN) for the period 2012 – 2017 were presented in a recent article (Andreić, 2018). The question that re- mained unanswered is how the night sky brightness behaves in the suburbs of Zagreb and in the nearby rural area. This article attempts to give some answers to this question by analyzing data gathered at the rural site of Merenje, located north of Zagreb. The main conclusion drawn is that the night sky brightness at both sites follows very similar patterns for clear sky conditions and is often similar for cloudy conditions, too. For both sites, no significant increase in zenithal night sky brightness was found in the observed period of 2014 – 2017. Thus, at least for the areas north of Zagreb that are in the shadow of Medvednica Mountain, the contribution of the light pollution from Zagreb and its growing outskirts remains unaltered. The main difference is in the level of the night sky brightness, the average for the RGN site being 16.9 mag/ arcsec2 and 18.9 mag/arcsec2 for the Merenje site. Additionally, the cloudy conditions enhance the light pollution of Za- greb a lot more, the difference being about 3.2 mag/arcsec2 for RGN, in contrast to 1.9 mag/arcsec2 for the Merenje site. No measurements exist for areas to the south, so no conclusions can be made for the situation there. Last, but not least, it was found that in cloudy conditions, the stronger light pollution of Zagreb is proportionally more enhanced by the clouds/fog than the smaller levels of light pollution at the Merenje site.
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 1849-0409 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (down) UP @ altintas1 @ Serial 3145
Permanent link to this record
 

 
Author Maggi, E.; Bertocci, I.; Benedetti-Cecchi, L.
Title Light pollution enhances temporal variability of photosynthetic activity in mature and developing biofilm Type Journal Article
Year 2020 Publication Hydrobiologia Abbreviated Journal Hydrobiologia
Volume 847 Issue 7 Pages 1793-1802
Keywords Plants; Ecology
Abstract Artificial light at night (ALAN) has been recently recognized as a threat for aquatic systems, but a comprehensive knowledge of its effects is still lacking. A fundamental question is whether and how ALAN might affect temporal variability of communities, thus undermining the stability of mature assemblages or influencing the colonization process. Here we investigated the role of ALAN on temporal variability of total biomass and maximum photosynthetic efficiency of marine autotrophic biofilms colonizing Mediterranean high-shore rock surfaces while controlling for density of their main grazers. Results showed stability in total biomass, but an increase in maximum photosynthetic efficiency from unlit to lit conditions, which suggested a temporal change in composition and/or abundance of different taxa within mature assemblages. The effect was weaker during the colonization process; in this case, density of grazers acted in the opposite direction of ALAN. We suggest that the addition of light at times when it would not be naturally present may affect the temporal variability of a variety of functioning in aquatic systems, depending on species-specific sensitivities to ALAN within microbial assemblages and/or indirect effects mediated by their consumers. We highlight to further investigate the role of this emergent topic in aquatic ecology.
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 0018-8158 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (down) UP @ altintas1 @ Serial 3146
Permanent link to this record
 

 
Author Marimuthu C.; Kirubakaran V.
Title Carbon and Energy Pay Back Period for the Solar Street Light using Life Cycle Assessment Type Journal Article
Year 2015 Publication International Journal of ChemTech Research Abbreviated Journal
Volume 8 Issue 3 Pages 1125-1130
Keywords Lighting; Economics
Abstract Electronic street lights are big consumers of energy, costing millions to cities and municipalities around the world. Solar Street light is one of the method to reduce the power consumption by generate the energy using the solar Photovoltaic panel. This system includes the power generators (panel), storage (batteries) and management (controller) as well as the light, poles and weather proof housing for batteries. Life cycle inventories are based on manufacturers data combined with additional calculation and assumption. The Life Cycle Assessment (LCA) methodology used in this research was based on the ISO 14040 and 14044 series. In this paper, the LCA method is used to investigate the environmental impacts of two types of street light technology, conventional street light and solar street light. The cradle to grave analysis for conventional and solar street light includes raw material extraction, production, uses and end of life scenario. The detail investigation has made for the existing solar street light present at Gandhigram Rural University, Dindigul Dist, Tamil Nadu. The specification of the solar street light is 80W capacity, 1.2 m2 area of panel and 135Ah – 12V battery. The total no of poles is 70. For the above system carbon intensity, Energy Pay Back Period and Carbon Pay Back Period have been calculated and compared with conventional street light. The result from the study will support local decision makers when seeking a balance between the environmental, financial and social requirements of public lighting services.
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 0974-4290 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (down) UP @ altintas1 @ Serial 3147
Permanent link to this record
 

 
Author Shabat M. M.; Alhams D. N.; El-Blbisie M. H.; Abushaar K. K.
Title Islamic University of Gaza Students’ Opinions on the Light Pollution Effects on Human Type Journal Article
Year 2019 Publication European Journal of Physics Education Abbreviated Journal
Volume 10 Issue 4 Pages 42-54
Keywords Education
Abstract Light pollution is nowadays well known all over the world and may negatively cause disturbance to human and have diverse effects. This study aims to identify the views and opinions of the Islamic University of Gaza students on light pollution and then to create awareness among them about the risky problem facing rapidly our society. The study is based on the survey questions and semi-structured interviews and then the data is collected from the survey questions and semi-structured interviews were qualitatively analyzed and quotes from the students' statements were included. Most of the students recognized that excessive lighting can adversely affect a person's health. The results also show that 40.0% of the students feel that the area outside of their residence is at night is “Fair Brightness “, 29.2% “Bright as day “, 13.8% “Pitch Black “, and 16.9% “A Little Black “. 90.8% of the sample are familiar with light pollution, but 9.2% is not. Some suggestions and recommendations will be made for controlling and reducing light pollution to have a healthy society.
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 1309-7202 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (down) UP @ altintas1 @ Serial 3152
Permanent link to this record
 

 
Author Skoufias E.; Strobl E.; Tveit T.
Title Can we Rely on VIIRS Nightlights to Estimate the Short-Term Impacts of Natural Disasters? Type Journal Article
Year 2019 Publication Policy Research Working Papers 9052 Abbreviated Journal
Volume Issue Pages
Keywords Remote Sensing
Abstract Visible Infrared Imaging Radiometer Suite (VIIRS) nightlights are used to model damage caused by earthquakes, floods, and typhoons in five Southeast Asian countries (Indonesia, Myanmar, the Philippines, Thailand, and Vietnam). The data are used to examine the extent to which for each type of hazard there is a difference in nightlight intensity between affected and nonaffected cells based on (i) case studies of specific disasters, and (ii) fixed effect regression models akin to the double difference method to determine any effect that the different natural hazards might have had on the nightlight value. The results show little to no significance regardless of the methodology used, most likely due to noise in the nightlight data and the fact that the tropics have only a few days per month with no cloud cover.
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 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (down) UP @ altintas1 @ Serial 3153
Permanent link to this record