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Université de Fribourg

A novel approach to estimate glacier mass balance in the Tien Shan and Pamir based on transient snowline observations

Barandun, Martina ; Huss, Matthias (Dir.)

Thèse de doctorat : Université de Fribourg, 2018 ; no 2099.

Glaciers are recognised as an excellent proxy for climate change and their centennial massloss has accelerated during the past decades. The Central Asian mountain ranges Tien Shan and Pamir host over 25,000 glaciers that have been observed to respond heterogeneous to climate change. Glacier changes in the region have very important consequences on the water availability for the densely populated...

Université de Fribourg

The high-resolution stratigraphic architecture and evolution of the Burdigalian carbonate-siliciclastic sedimentary systems of the Mut Basin, Turkey

Bassant, Philip ; Strasser, Andreas (Dir.)

Thèse de doctorat : Université de Fribourg, 1999 ; no 1256.

The factors influencing the production and deposition of carbonate sediments are known. These are namely accommodation variations (eustasy and tectonics), siliciclastic sediment input, environmental changes (temperature, salinity, trophic level), nature of the producing ecologies, and the hydrodynamic regime. However, the manner in which these factors integrate through time to produce the...

Université de Fribourg

Snow pack in the Swiss Alps under changing climatic conditions: an empirical approach for climate impacts studies

Beniston, Martin ; Keller, Fransiska ; Goyette, Stéphane

In: Theoretical and Applied Climatology, 2003, vol. 74, no. 1-2, p. 19-31

In many instances, snow cover and duration are a major controlling factor on a range of environmental systems in mountain regions. When assessing the impacts of climatic change on mountain ecosystems and river basins whose origin lie in the Alps, one of the key controls on such systems will reside in changes in snow amount and duration. At present, regional climate models or statistical...

Université de Fribourg

Perturbations to astronomical observations at the European Southern Observatory's very large telescope site in Paranal, Chile: analyses of climatological causes

Beniston, Martin ; Casals, Paula ; Sarazin, Marc S.

In: Theoretical and Applied Climatology, 2002, vol. 73(3-4), p. 133-150

A study has been conducted to assess the reasons for a significant decrease in the astronomic observing period since the Very Large Telescope of ESO (the European Southern Observatory) went into operation in 1998. Following a multi-year monitoring of meteorological parameters at the site of the ESO telescope in Paranal (northern Chile), the optimal climatic conditions observed there prior to the...

Université de Fribourg

Climatic change: possible impacts on human health

Beniston, Martin

In: Swiss Medical Weekly, 2002, vol. 25-26, p. 329

This paper addresses a number of problems relating climatic change and human health. Following an introduction that outlines the over-arching issues, a short summary is given on climatic change and its anthropogenic causes. The rest of the paper then focuses on the direct and indirect impacts of global climatic change on health. Direct effects comprise changes in the hygrothermal stress response...

Université de Fribourg

Shifts in the distributions of pressure, temperature and moisture and changes in the typical weather patterns in the Alpine region in response to the behavior of the North Atlantic Oscillation

Beniston, Martin ; Jungo, Patricia

In: Theoretical and Applied Climatology, 2002, vol. 71(1-2), p. 29

An investigation has been undertaken to assess the manner in which the North Atlantic Oscillation (NAO) influences average, climatic conditions, and also extremes of dynamic and thermodynamic variables. By choosing representative sites in the Swiss Alps, the present study shows that there is a high sensitivity of the extremes of the probability density functions of temperature, moisture and...