Concept

Déchet en mer

Publications associées (33)

Pollution plastique dans les eaux suisses: caractérisation et quantification de leurs micropolluants

Numerous researches showing various environmental impacts are done on marine plastic pollution. In turn the situation for superficial fresh water is poorly known. In order to measure this pollution in Switzerland three different lake samples (lake Geneva, ...

2014

A model for entrainment in avalanches and debris flows based on PIV measurements of viscous gravity currents.

Christophe Ancey, Belinda Margaret Bates

A simple experiment, designed to investigate entrainment in geophysical free-surface flows such as avalanches and debris flows, was performed using a dam break of viscous fluid which travels over a rigid bed until meeting a shallow layer of the same fluid ...

2014

An evaluation of surface micro and meso plastic pollution in pelagic ecosystems of western Mediterranean Sea

Luiz Felippe De Alencastro, Florian Faure, Pascal Hagmann

In the 90’s, the discovery of high concentrations of plastic debris in the oceans generated interest and concern of general public as well as scientific community. Since, the accumulation of plastic debris in the North Pacific and North Atlantic gyres has ...

2013

Pollution due to Plastics and Microplastics in Lake Geneva

Luiz Felippe De Alencastro, Florian Faure, Vasco Andrea Neuhaus, Hadrien Baecher, Marie Corbaz

Lake Geneva is indeed affected by microplastic pollution Diverse particle types, including primary pebbles and secondary fragments Floating microplastics do sorb PCBs Fauna may be in contact with these microplastics Methodology needs improvement for beach ...

2013

Effect of available entrainable material on a viscous gravity current including run-out characteristics and internal flow properties.

Christophe Ancey, Belinda Margaret Bates

It has long been accepted that entrainment of loose material by geophysical gravity flows such as dense snow avalanches and debris flows may change their behaviour significantly. Run-out distances and bulk-flow velocities are notable examples of susceptibl ...

2013

Floating oil-covered debris from the Deepwater Horizon : Identification and application

Jeremy Samuel Arey

The discovery of oiled and non-oiled honeycomb material in the Gulf of Mexico surface waters and along coastal beaches shortly after the explosion of Deepwater Horizon sparked debate about its origin and the oil covering it. We show that the unknown pieces ...

2012

Hygroscopicity and composition of California CCN during summer 2010

Athanasios Nenes

We present an overview and analysis of cloud condensation nuclei (CCN) sampled in California by a NOAA WP-3D aircraft during the 2010 CalNex project. Four distinct geographical regions are characterized, including the Los Angeles basin, the San Joaquin and ...

Blackwell Publishing Ltd2012

High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation

Alexandre Buttler, Luca Bragazza, Jonathan Habermacher

Bogs are globally important sinks of atmospheric carbon (C) due to the accumulation of partially decomposed litter that forms peat. Because bogs receive their nutrients from the atmosphere, the world-wide increase of nitrogen (N) deposition is expected to ...

2012

Global distribution and climate forcing of marine organic aerosol-Part 1. Model improvements and evaluation

Yi Zhang, Athanasios Nenes

Marine organic aerosol emissions have been implemented and evaluated within the National Center of Atmospheric Research (NCAR)'s Community Atmosphere Model (CAM5) with the Pacific Northwest National Laboratory's 7-mode Modal Aerosol Module (MAM-7). Emissio ...

2011

Effect of debris on the silicon wafering for solar cells

Christophe Ballif, Adrien Bidiville

The wafers used by the photovoltaic industry are mostly produced by multi-wire slurry sawing. One of the key factors determining the wafer quality (presence of saw marks and chips, increased roughness, wafer thickness variations and wafer strength) is the ...

Elsevier2011

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