Alpes ; Analyse de sensibilité ; Autriche ; Climat ; Fluctuation du glacier ; Glacier ; Modèle ; Montagne ; Suisse ; Temps de réponse ; Variabilité climatique
Alps (The) ; Austria ; Climate ; Climatic variability ; Glacier ; Glacier fluctuation ; Model ; Mountain ; Response time ; Sensitivity analysis ; Switzerland
The A. uses a linear first-order differential equation to model glacier length fluctuations. This equation has 2 parameters describing the physical characteristics of a glacier : the climate sensitivity, expressing how the equilibrium glacier length
depends on the climatic state, and the response time, indicating how fast a glacier approaches a new equilibrium state after a stepwise change in the climatic forcing. The linear model is used to define and illustrate some concepts relevant to the study
of glacier fluctuations. It is shown that glaciers are never in equilibrium with climate, and that a constant time lag between forcing and response cannot be expected. Next the linear glacier model is applied to real glaciers, showing how information
Conceptual model ; Geotechnics ; Mountain ; Periglacial features ; Permafrost ; Rock glacier ; Switzerland ; Thermal regime ; Thermokarst
be attributed to early motivation by Wilfried Haeberli and offers a tribute as well as gratitude for his ongoing feedback and advice. Some thoughts on the development of thermokarst due to water ponding and flow, and a conceptual model of geotechnical mechanisms
Analyse spatiale ; British Columbia ; Canada ; Limite supérieure de la forêt ; Modèle d'équilibre ; Montagne ; Pergélisol ; Périglaciaire ; Régime thermique ; Température de l'air ; Température du sol ; Yukon
Air temperature ; British Columbia ; Canada ; Equilibrium model ; Mountain ; Periglacial features ; Permafrost ; Soil temperature ; Spatial analysis ; Thermal regime ; Tree line ; Yukon
, expressed as freezing and thawing n-factors, vary significantly with vegetation type and hence elevational band, with the lowest values for the forested zone and the highest for non-maritime alpine tundra. Equilibrium modelling carried out for one site