Search results for "Island"

The Impact of Green Roofs on the Parameters of the Environment in Urban Areas—Review

2019

This study presents the results of a review of publications conducted by researchers in a variety of climates on the implementation of ‘green roofs’ and their impact on the urban environment. Features of green roofs in urban areas have been characterized by a particular emphasis on: Filtration of air pollutants and oxygen production, reduction of rainwater volume discharged from roof surfaces, reduction of so-called ‘urban heat islands’, as well as improvements to roof surface insulation (including noise reduction properties). The review of the publications confirmed the necessity to conduct research to determine the coefficients of the impact of green roofs on the environment in the city c…

A simple methodology for comparing cost-benefit of traditional, green and cool roofs

2019

Energy policy makers, architects and researchers, when designing new buildings or rehabilitating the existing ones, are engaged in the attempt of limiting the energy needs for climatization (NZEB buildings) and the environmental pressure exerted by buildings (EU Climate Action). The pursuit of this demanding assignment calls for innovative solutions in conceiving the building envelope and its energy systems. Recently, among the most effective tools for improving the energy and environmental performances of buildings, the technical interventions regarding the roofs are gaining a rising attention. Indeed, covers of buildings are responsible of a relevant part of their energy losses and, on th…

Występowanie Carabus (Morphocarabus) scheidleri scheidleri Panzer, 1799 na wyspie Bolko w Opolu

2015

Carabus scheidleri scheidleri is a very rare, legally protected in Poland species of ground beetle, occurring on single localities mainly in southern part of the country. The Authors present new data about occurrence of this species on the Bolko Island, one of the most valuable nature areas in town of Opole. General distribution of this species in Poland, commentson its systematic position and discussion about establishing protected area on the Bolko Island are also provided.

Urban Heat Island (UHI) and heat waves: what relations?

2018

With four years of measurements and alarge sample of stations, the MUSTARDijon network allows for a detailed characterization of the Urban HeatIsland (UHI), a warm season phenomenon. But UHI and maximum temperature values are out of phase at twodistinct time-scales. Seasonally, the maxima of UHI occur from May to July, i.e. before the annual peak oftemperature (July to August). At a daily time-scale, analysis of the two heat waves of July 2015 shows a lag of afew days between the peak of UHI and the heat wave. Two hypotheses are suggested to explain these lags:changes in radiative conditions and/or energy fluxes between the ground surface and the atmosphere.

Les Local Climate Zones face à la canicule de 2018 à Dijon.

2019

Air temperatures measured by the MUSTARDijon network are analyzed during the summer 2018 (July 24 - August 8) heat wave. The WUDAPT method is applied to Dijon to identify Local Climate Zones (LCZs). Diurnal rhythms and nighttime mean temperatures are analyzed according to LCZs as well as to altitude and distance to the city center. During warm nights, altitude plays a negligible role. The temperatures depend to the distance of the city center. They are also associated to the anthropization summarized by the LCZs. Form of the building and vegetation are the two keys to understand and modulate the night temperatures which have the greatest impact on human health during heat waves.

A PTFE membrane for the in situ extraction of dissolved gases in natural waters: Theory and applications

2005

A new method for extracting dissolved gases in natural waters has been developed and tested, both in the laboratory and in the field. The sampling device consists of a polytetrafluroethylene (PTFE) tube (waterproof and gas permeable) sealed at one end and connected to a glass sample holder at the other end. The device is pre-evacuated and subsequently dipped in water, where the dissolved gases permeate through the PTFE tube until the pressure inside the system reaches equilibrium. A theoretical model describing the time variation in partial gas pressure inside a sampling device has been elaborated, combining the mass balance and "Solution-Diffusion Model" (which describes the gas permeation…

Urban Heat Island and air quality, Dijon, winter 2014-2015.

2016

For the 2014-2015 Winter, thetemperature patterns and the Air Quality measured over the Grand Dijon urban area are studied together.Meteorological conditions favoring the development of an Urban Heat Island (UHI) are distinguished fromthose giving rise to pollution episodes. Winter UHI are next characterized, with radiative situations followedafter the sunset by relatively strong UHI (about 3°C), and days with no insolation during which anthropogenicheat is suspected to produce a small UHI (few tenths of °C).

Ecological effects of natural ocean acidification on benthic macroalgal communities

2012

THE ESTIMATION OF THE COSTS OF INSULARITY THROUGH A REGRESSIVE ECONOMETRIC MODEL APPLIED TO SICILY

2022

The geographic nature of the islands determines a peculiar condition of peripherality and specific accessibility problems often associated with the presence of structural delays in development processes. Data on the gaps due to insularity, as the case of Sicily clearly shows, returns an alarming picture that highlights employment imbalances, high poverty, high costs for transport, widespread margins, reduced internationalization and a decisive infrastructural inequality. In this work we have tried to offer a contribution to the meager debate on insularity, starting from the measurement of the disadvantage of insularity in economic terms. For Sicily, an estimate of the costs related to the i…

Economic conditions of islands and policies to rebalance territorial disparities

2022

The focus on island contexts stems from the fact that they present peculiarities related not only to the morphology of the territory but also to the economic and social system that characterises them. The territory of the European Union includes more than 3,000 islands in the Pacific, Atlantic and Indian Oceans, the Baltic Sea, the North Sea, the Mediterranean Basins and the Caribbean. The islands share similar social, geographical, economic, and environmental characteristics. Con- sidering only island regions, the European Union recognises more than 280 islands, identified as those territories surrounded by the sea, having an area of more than 1 km2, located at least one kilometre from the…