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Accueil > Recherche > Productions Scientifiques > Communications sans actes > 2011

Communications sans actes : Année 2011

Hydrological and geochemical approach to understand the glacier-permafrost subglacial-system interactions in a glaciated catchment of Western Spitsbergen

22 septembre 2013

The freshwater fluxes flowing from High Arctic glaciers mainly depend on climatic indicators (T, P) but also on other parameters like the thermal state of glacier, the water routing within and below the glacier, the permafrost distribution and the hydrodynamic characteristics of the moraines (...)

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Data issues in a moving environment: remote and in situ tools to monitor glacier dynamics and their hydrological consequences in the Austre Lovènbreen basin

22 septembre 2013

The precise quantification of glacier movements over time is one of the goals of glaciology. Understanding how and where ice is appearing, melting, and what happens once it’s gone are at the core of the Hydro - Se nsor - FlOWS program (IPY #16, IPEV 304, ANR 0310) that just ended and will be one (...)

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Using ground based high resolution photography for seasonal snow and ice dynamics (Austre Lovénbreen, Svalbard, 79°N)

22 septembre 2013

As is the case in many regions, arctic glaciers are reliable indicators of global climate changes. Within this context, the observed ev olutions are becoming faster and more unpre- dictable. Snow and ice dynamics are directly affected, and following processes becomes challenging: some fast but (...)

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High density coverage investigation of The Austre LovénBreen (Svalbard) using Ground Penetrating Radar

22 septembre 2013

A three week field survey over April 2010 allowed for the acquisition of 120 Ground Penetrating Radar (GPR) profiles, adding to a 40 km long walk across an Arctic glacier. The profiles were acquired using a Mal°a equipment with 100 MHz antennas, walking slowly enough to record a 2.224 s trace (...)

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WISDOM measurements in a cold artificial and controlled environment

5 février 2012

The WISDOM (500MHz - 3GHz) GPR is one of the instruments that have been selected as part of the Pasteur payload of ESA's 2018 ExoMars Rover mission. One of the main scientific objectives of the mission is to characterize the nature of the shallow sub-surface on Mars and WISDOM has been designed (...)

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An atmospheric model designed for integration into coupled models of magma ocean planets. (poster)

3 février 2012

A 1D radiative-convective model of a thick (up to several hundreds of bars) H2O-CO2 atmosphere has been developped and coupled with a simple magma ocean interior model[1]. In this paper, we will focus on describing the atmospheric model. Preliminary results regarding observable parameters and (...)

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Cooling of an early Earth magma ocean in interaction with the atmosphere. (poster)

3 février 2012

We developed a 1D convective model of a cooling magma ocean that we coupled with a 1D radiativeconvective model of a primitive atmosphere [4]. Our main objective is to estimate the cooling time when the retroaction with the atmosphere is taken into account. We first describe our model and (...)

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