Time filter

Source Type

Échirolles, France

Demenet P.-F.,ARTELIA EAU et Environnement | Bae B.K.,Daelim Industrial Co.
Proceedings of the Coastal Engineering Conference | Year: 2014

This paper presents the results of studies carried out by ARTELIA for the intake and outfall system of the new Shoaiba II thermal power plant, on behalf of DAELIM. These studies included hydraulic desk studies, thermal dispersion simulation study, physical model tests and simulation study of ship manoeuvring for the fuel oil terminal. Source

Lang M.,IRSTEA | Arnaud P.,IRSTEA | Carreau J.,CNRS HydroSciences Montpellier Laboratory | Deaux N.,Meteo - France | And 24 more authors.
Houille Blanche | Year: 2014

This paper presents a comparison of models for extreme rainfall and flood values. Based on a large set of thousands of rainfall and discharge data, the French ExtraFlo project showed that design estimate of extreme values based on the fitting of a distribution on a limited sample of maximum values is very inaccurate when only a few decades of observation are available. Some interesting alternatives are possible, using a regional approach, or historical data when available, or simulation methods, or sedimentological or geochemical signatures of flood deposits. © 2014 Société Hydrotechnique de France. Source

Garnier M.,National Research Council Italy | Harper D.M.,University of Leicester | Blaskovicova L.,Slovak Hydrometeorological Institute | Hancz G.,Debrecen University | And 11 more authors.
Environmental Management | Year: 2015

There is general agreement among scientists that global temperatures are rising and will continue to increase in the future. It is also agreed that human activities are the most important causes of these climatic variations, and that water resources are already suffering and will continue to be greatly impaired as a consequence of these changes. In particular, it is probable that areas with limited water resources will expand and that an increase of global water demand will occur, estimated to be around 35–60 % by 2025 as a consequence of population growth and the competing needs of water uses. This will cause a growing imbalance between water demand (including the needs of nature) and supply. This urgency demands that climate change impacts on water be evaluated in different sectors using a cross-cutting approach (Contestabile in Nat Clim Chang 3:11–12, 2013). These issues were examined by the EU FP7-funded Co-ordination and support action “ClimateWater” (bridging the gap between adaptation strategies of climate change impacts and European water policies). The project studied adaptation strategies to minimize the water-related consequences of climate change and assessed how these strategies should be taken into consideration by European policies. This article emphasizes that knowledge gaps still exist about the direct effects of climate change on water bodies and their indirect impacts on production areas that employ large amounts of water (e.g., agriculture). Some sectors, such as ecohydrology and alternative sewage treatment technologies, could represent a powerful tool to mitigate climate change impacts. Research needs in these still novel fields are summarized. © 2015, Springer Science+Business Media New York. Source

Alazard L.,ARTELIA EAU et Environnement | Bazerque L.,ARTELIA EAU et Environnement | Odeyer C.,ARTELIA EAU et Environnement
Houille Blanche | Year: 2015

In order to optimize the design of the spillways of major hydraulic works as the large dams, in-house researches on the different methods for assessing PMP have been performed by ARTELIA. A detailed analysis has been carried out concerning the applicability of the statistical and empirical method which matches the constraints of engineering. The obtained results confirm the reliability of the statistical methods and especially the one of the Hershfield method, if, nevertheless, the instructions given by the author are respected. For the studied areas, the ratio between the PMP and the 10 000-year return period rainfall is around 1, if the Km coefficient is determined locally, and between 2 to 3 if the Km coefficient is assessed on the curve established by Hershfield. Finally, the analysis has shown the importance of the quality and the quantity of the available data on the reliability of the PMP value. © Société Hydrotechnique de France, 2015. Source

Giraudel C.,ARTELIA EAU et Environnement | Garcia N.,ARTELIA EAU et Environnement | Ledoux S.,ARTELIA EAU et Environnement
Proceedings of the Coastal Engineering Conference | Year: 2014

The single-layer technique appeared at the beginning of the 1980s, with the ACCROPODE™ unit, and is thus entering its third decade. At the time, this solution was a real innovation, reducing the amount of concrete and steepening armour facing slopes, hence reducing the volume of materials required. After three decades in use and more than 200 projects to date, it was important to summarize the lessons learned during this period and to inspect (above and below water) some of these structures in order to assess their behaviour and particularly to confirm the validity of the unit placing rules. In addition to the aspects related to armour stability, the focus has been given to the colonization by marine life of the structures, including the bedding layers, toe berms, underlayer, armour units. The purpose of this paper is to share the experience gained throughout the inspections undertaken since 2010 on structures built more than 10 years ago. A large panel of structures has been inspected, of different ages and at various locations worldwide. Source

Discover hidden collaborations