Publications associées à Alpine tundra

The Legacy Effects of Winter Climate on Microbial Functioning After Snowmelt in a Subarctic Tundra

Warming-induced increases in microbial CO2 release in northern tundra may positively feedback to climate change. However, shifts in microbial extracellular enzyme activities (EEAs) may alter the impacts of warming over the longer term. We investigated the ...

SPRINGER2019

Characterisation of the melting layer variability in an Alpine valley based on polarimetric X-band radar scans

Alexis Berne, Marco Gabella, Urs Martin Germann, Floortje Elisabeth Maria Van den Heuvel

The melting layer designates the transition region from solid to liquid precipitation, and is a typical feature of the vertical structure of stratiform precipitation. As it is characterised by a well-known signature in polarimetric radar variables, it can ...

COPERNICUS GESELLSCHAFT MBH2018

Soil Moisture Estimation by SAR in Alpine Fields Using Gaussian Process Regressor Trained by Model Simulations

Jean-Philippe Thiran, Jelena Stamenkovic

In this paper, we address the problem of retrieving soil moisture over a grassland alpine area from Synthetic Aperture Radar (SAR) data using a statistical algorithm trained by simulations of a physical model. A time series of C-band VV-polarized Wide Swat ...

Ieee-Inst Electrical Electronics Engineers Inc2017

Attenuation of wind-induced pressure perturbations in alpine snow

Wolf Hendrik Huwald, Marc Parlange, Chad Higgins

Windpumping has been identified as a process that could potentially enhance sublimation of surface snow at high forcing frequency and spawn air movement deeper in firn at lower frequencies. We performed an experiment to examine the relationship between hig ...

International Glaciological Society2016

Effect of Natural Weathering on Durability of Pultruded Glass Fiber-Reinforced Bridge and Building Structures

Thomas Keller, Anastasios Vassilopoulos, Julia De Castro San Roman Fest, Nikolaos Alexandros Theodorou

After 17 and 15years of use, respectively, a detailed inspection of a pedestrian bridge and a 5-story building structure composed of partly adhesively bonded pultruded glass fiber-reinforced polymer (GFRP) profiles was conducted accompanied by full-scale s ...

American Society of Civil Engineers2016

Recent advances in liquid water flow modelling in the physics based SNOWPACK model

Michael Lehning, Nander Wever, Sebastian Würzer, Charles Fierz

Simulating liquid water flow in snow has deserved much attention in the physics based snow modelling community, as it is a crucial factor in understanding hydrological processes in alpine catchments, snowpack stratification and wet snow avalanche formation ...

2016

Spring snowmelt drives ecosystem metabolism in an Alpine stream network

Tom Ian Battin, Enrico Bertuzzo, Amber Joy Ulseth

Stream ecosystem metabolism modulates organic carbon (OC) cycling in rivers and regulates downstream OC fluxes. Climate-change scenarios predict precipitation to shift from snow towards rain in alpine ecosystems, however consequences of this shift to strea ...

2016

Wind tunnel experiments: cold-air pooling and atmospheric decoupling above a melting snow patch

Michael Lehning, Enrico Paterna, Philip Crivelli

The longevity of perennial snowfields is not fully understood, but it is known that strong atmospheric stability and thus boundary-layer decoupling limit the amount of (sensible and latent) heat that can be transmitted from the atmosphere to the snow surfa ...

Copernicus GmbH2016

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Alpine tundra

The Legacy Effects of Winter Climate on Microbial Functioning After Snowmelt in a Subarctic Tundra

From the clouds to the ground - Effects of flow-precipitation interactions on snow distribution in complex alpine terrain

Characterisation of the melting layer variability in an Alpine valley based on polarimetric X-band radar scans

Stress Concentrations in Weak Snowpack Layers and Conditions for Slab Avalanche Release

Soil Moisture Estimation by SAR in Alpine Fields Using Gaussian Process Regressor Trained by Model Simulations

Attenuation of wind-induced pressure perturbations in alpine snow

Effect of Natural Weathering on Durability of Pultruded Glass Fiber-Reinforced Bridge and Building Structures

Recent advances in liquid water flow modelling in the physics based SNOWPACK model

Spring snowmelt drives ecosystem metabolism in an Alpine stream network

Wind tunnel experiments: cold-air pooling and atmospheric decoupling above a melting snow patch

Graph Chatbot

Chattez avec Graph Search

Stress Concentrations in Weak Snowpack Layers and Conditions for Slab Avalanche Release

From the clouds to the ground - Effects of flow-precipitation interactions on snow distribution in complex alpine terrain

Characterisation of the melting layer variability in an Alpine valley based on polarimetric X-band radar scans

The Legacy Effects of Winter Climate on Microbial Functioning After Snowmelt in a Subarctic Tundra

Effect of Natural Weathering on Durability of Pultruded Glass Fiber-Reinforced Bridge and Building Structures

Soil Moisture Estimation by SAR in Alpine Fields Using Gaussian Process Regressor Trained by Model Simulations

Attenuation of wind-induced pressure perturbations in alpine snow

Spring snowmelt drives ecosystem metabolism in an Alpine stream network

Recent advances in liquid water flow modelling in the physics based SNOWPACK model

Wind tunnel experiments: cold-air pooling and atmospheric decoupling above a melting snow patch