Publication

Seasonal evolution of snow cover on Antarctic sea ice

Publications associées (72)

Search for relativistic magnetic monopoles with IceCube

Matthias Wolf, Shirit Cohen, Mathieu Ribordy, Xiaoxia Bai

We present the first results in the search for relativistic magnetic monopoles with the IceCube detector, a subsurface neutrino telescope located in the South Polar ice cap containing a volume of 1 km(3). This analysis searches data taken on the partially ...

Amer Physical Soc2013

The influence of winds, sea-surface temperature and precipitation anomalies on Antarctic regional sea-ice conditions during IPY 2007

Katherine Colby Leonard

The 2007 International Polar Year (IPY) in the Antarctic was distinguished by strong regional and seasonal ice-atmosphere-ocean anomalies associated with an overall weakening of the prevailing westerly circulation. Here we assess the ice-atmosphere-ocean c ...

2011

Existence and stability of steady-state solutions of the shallow-ice-sheet equation by an energy-minimization approach

Jacques Rappaz, Guillaume Jouvet, Heinz Blatter

The existence of solutions of the non-sliding shallow-ice-sheet equation on a flat horizontal bed with a mass balance linearly depending on altitude is proven for fixed margins. Free-margin solutions for the same mass balance do not exist. Fixed-margin sol ...

International Glaciological Society2011

Changes in atmospheric CO2 and its carbon isotopic ratio during the penultimate deglaciation

Jérôme Chappellaz

Climate models show strong links between Antarctic and global temperature both in future and in glacial climate simulations. Past Antarctic temperatures can be estimated from measurements of water stable isotopes along the EPICA Dome C ice core over the pa ...

Elsevier BV2010

Search for relativistic magnetic monopoles with the AMANDA-II neutrino telescope

Matthias Wolf, Shirit Cohen, Mathieu Ribordy, Xiaoxia Bai

We present the search for Cherenkov signatures from relativistic magnetic monopoles in data taken with the AMANDA-II detector, a neutrino telescope deployed in the Antarctic ice cap at the Geographic South Pole. The non-observation of a monopole signal in ...

2010

Impedance measurements of the complex dielectric permittivity of sea ice at 50 MHz: pore microstructure and potential for salinity monitoring

Guy Joseph Günter Dubuis

We report impedance measurements of the complex dielectric permittivity epsilon = epsilon' - j epsilon '' of sea ice and laboratory-grown NaCl single crystals using 50 MHz Stevens Water Monitoring Systems Hydra Probes. Temperature cycling of the single-cry ...

2009

Results from the Greenland search for meteorites expedition

Anders Meibom

Following discoveries of blue ice areas in Greenland resembling meteorite-bearing blue ice fields in Antarctica, a surface search of several of the most promising sites was carried out in August 2003. The ice fields are located in Kong Christian X Land, in ...

2007

20th century trends and budget implications of chloroform and related tri-and dihalomethanes inferred from firn air

Jérôme Chappellaz, Daniele Romanini

In response to the 'oldest ice' challenge initiated by the International Partnerships in Ice Core Sciences (IPICS), new rapid-access drilling technologies through glacier ice need to be developed. These will provide the information needed to qualify potent ...

International Glaciological Society2006

A continuous record of temperature evolution over a sequence of Dansgaard-Oeschger events during Marine Isotopic Stage 4 (76 to 62 kyr BP)

Jérôme Chappellaz

Under present-day climatic conditions the air content of ice shows a high sensitivity to the atmospheric pressure and hence to the elevation at the surface of the ice sheet. This observation has been used to infer past ice sheet thickness variations of Ant ...

American Geophysical Union (AGU)2004

Antarctic climate during the middle Pliocene: model sensitivity to ice sheet variation

Jed Oliver Kaplan

Significant controversy exists surrounding the nature of the Antarctic ice sheet during the period of middle Pliocene warmth. This paper outlines the output from three sensitivity experiments for the middle Pliocene, using the UKMO GCM and the USGS PRISM2 ...

2002

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