Jonas Wicky
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Sub-surface processes and heat fluxes at coarse blocky Murtèl rock glacier (Engadine, eastern Swiss Alps): seasonal ice and convective cooling render rock glaciers climate-robust Open
We measured sub-surface heat fluxes and calculated the energy budget of the coarse blocky active layer (AL) of Murtèl rock glacier, a seasonally snow-covered permafrost landform located in the eastern Swiss Alps. In the highly permeable AL…
Sub-surface processes and heat fluxes at coarse-blocky Murtèl rock glacier (Engadine, eastern Swiss Alps) Open
We estimate the sub-surface energy budget and heat fluxes in the coarse-blocky active layer (AL) of the Murtèl rock glacier, a seasonally snow-covered permafrost landform located in the eastern Swiss Alps. In the highly permeable AL, condu…
View article: Modeling the Link Between Air Convection and the Occurrence of Short‐Term Permafrost in a Low‐Altitude Cold Talus Slope
Modeling the Link Between Air Convection and the Occurrence of Short‐Term Permafrost in a Low‐Altitude Cold Talus Slope Open
We extend a numerical modeling approach developed to explicitly model convective heat transfer in periglacial landforms to represent the ground thermal regime of low‐altitude talus slopes. Our model solves for heat conduction and accounts …
Abramov glacier firn data Open
Historical and recent firn data for Abramov glacier, Pamir Alay compiled and measured in the context of the PhD Thesis 'Changing glacier firn in Central Asia and its impact on glacier mass balance' by Marlene Kronenberg (2022). This reposi…
Abramov glacier firn data Open
Historical and recent firn data for Abramov glacier, Pamir Alay compiled and measured in the context of the PhD Thesis 'Changing glacier firn in Central Asia and its impact on glacier mass balance' by Marlene Kronenberg (2022). This reposi…
Air convection in coarse blocky permafrost : a numerical modelling approach to improve the understanding of the ground thermal regime Open
Permafrost is a thermal phenomenon, defined as subsurface material with a temperature remaining below 0°C for at least two consecutive years. Permafrost occurs at high latitudes and high altitudes in mountain ranges. In the Swiss Alps, per…
Air Convection in the Active Layer of Rock Glaciers Open
Coarse blocks are an abundant surface cover in mountainous permafrost landscapes. In this coarse blocky layer, air convection occurs and has a significant influence on the ground thermal regime of the underlying permafrost. Besides heat tr…
Numerical modelling of convective heat transport by air flow in permafrost talus slopes Open
Talus slopes are a widespread geomorphic feature in the Alps. Due to their high porosity a gravity-driven internal air circulation can be established which is forced by the gradient between external (air) and internal (talus) temperature. …
Numerical modelling of convective heat transport by air flow in permafrost-affected talus slopes Open
Talus slopes are a widespread geomorphic phenomenon in the Alps. Due to their high porosity a gravity-driven internal air circulation can be established which is forced by the gradient between outside (air) and internal (talus) temperature…