Concept

Lac glaciaire

Publications associées (50)

Hydraulic Reconstruction of the 1818 Gietro Glacial Lake Outburst Flood

Christophe Ancey, Tomás Alfredo Trewhela Palacios, Eric Bardou, Martin Funk

In the spring of 1818, ice avalanches from the Gietro Glacier created an ice dam, which in turn formed a glacial lake in the Drance Valley (Canton of Valais, Switzerland). Today, its maximum volume is estimated to have been 25x10(6) m(3). Cantonal authorit ...

2019

Silicon isotopes in Arctic and sub-Arctic glacial meltwaters: the role of subglacial weathering in the silicon cycle

Tyler Joe Kohler

Glacial environments play an important role in high-latitude marine nutrient cycling, potentially contributing significant fluxes of silicon (Si) to the polar oceans, either as dissolved silicon (DSi) or as dissolvable amorphous silica (ASi). Silicon is a ...

2019

Tapping hidden hydropower potential in Swiss Alpine catchments in the context of the planned nuclear power phase out

Anton Schleiss, Pedro Filipe De Almeida Manso, Bettina Schaefli, Ana Clara Pereira Barbosa Santos

In its Energy Strategy 2050, Switzerland is revising its energy perspectives with a strong focus on renewable sources of energy and in particular hydropower. In this context, the Swiss Government funded a number of competence centers for energy research (S ...

2017

Alpine glacier-fed turbid lakes are discontinuous cold polymictic rather than dimictic

Hannes Markus Peter

Glacier retreat as a consequence of climate change influences freshwater ecosystems in manifold ways, yet the physical and chemical bases of these effects are poorly studied. Here, we characterize how water temperature differs between alpine lakes with and ...

Freshwater Biological Assoc2017

Is the Red Sea coral Stylophora pistillata already prepared for future ocean conditions?

Anders Meibom, Thomas Krüger, Maoz Fine, Julia Marie Jeanne Yvonne Bodin, Maria-Evangelia Giovani

Migration of corals through a hot water bottleneck in the Southern Red Sea, following the last glacial period, has led to a situation where corals in the Northern Red Sea now express high thermal thresholds while living at suboptimal lower temperatures. We ...

2016

Local artifacts in ice core methane records caused by layered bubble trapping and in situ production: A multi-site investigation

Jérôme Chappellaz

Deglaciations are characterized by the largest natural changes in methane (CH4) and nitrous oxide (N2O) concentrations of the past 800g€¯000 years. Reconstructions of millennial- to centennial-scale variability within these periods are mostly restricted to ...

Copernicus GmbH2016

The relative importance of methane sources and sinks over the Last Interglacial period and into the last glaciation

Jérôme Chappellaz

The largest natural increases in atmospheric CO2 concentration as recorded in ice cores occur when the Earth climate abruptly shifts from a glacial to an interglacial state. Open questions remain regarding the processes at play, the sequences of events and ...

Elsevier BV2015

Mapping hazards from glacier lake outburst floods based on modelling of process cascades at Lake 513, Carhuaz, Peru

Javier García Hernández, Sebastián Guillén Ludeña, Daniel Schneider

Recent warming has had enormous impacts on glaciers and high-mountain environments. Hazards have changed or new ones have emerged, including those from glacier lakes that form as glaciers retreat. The Andes of Peru have repeatedly been severely impacted by ...

2014

NGRIP CH4 concentration from 120 to 10 kyr before present and its relation to a δ15N temperature reconstruction from the same ice core

Jérôme Chappellaz

Using new and previously published CO2 data from the EPICA Dome C ice core (EDC), we reconstruct a new high-resolution record of atmospheric CO2 during Marine Isotope Stage (MIS) 6 (190 to 135 ka) the penultimate glacial period. Similar to the last glacial ...

Copernicus GmbH2014

Metropolitan dynamics and institutional fragmentation in the United States, 1950-2010

Thomas Charles Marie Pierre Favre-Bulle

Since 1950, the United States have witnessed a change in their urban dynamics: the advent of the metropolis. Before, the border was clear between big industrial cities, and small rural communities. At the end of the 19th century, large urban centers starte ...

2014

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