Concept
Virga
Related publications (14)
Characterizing airborne snow metamorphism using stable water isotope measurements in snow and vapor from ring wind tunnel experiments
Michael Lehning, Sonja Wahl, Luca Bianchi, Benjamin Andreas Walter
Drifting-blowing snow events are frequent phenomena in alpine and polar regions with direct effects on the local mass and energy balance that are difficult to quantify. In addition to this immediate impact of the blowing snow cloud the aeolian transport mo ...
2023Radar processing techniques to study summer snowfall in the Sør Rondane Mountains, Antarctica
Snowfall is one of the main positive contributors to the surface mass balance of the Antarctic ice sheet. There are several techniques to monitor solid precipitation on the continent. Among them, meteorological radars provide the means to characterize the ...
EPFL2022Present and Future of Rainfall in Antarctica
Alexis Berne, Etienne Gabriel Henri Vignon
While most precipitation in Antarctica falls as snow, little is known about liquid precipitation, although it can have ecological and climatic impacts. This study combines meteorological reports at 10 stations with the ERA5 reanalysis to provide a climatol ...
AMER GEOPHYSICAL UNION2021Dynamic Differential Reflectivity Calibration Using Vertical Profiles in Rain and Snow
The accuracy required for a correct interpretation of differential reflectivity (ZDR) is typically estimated to be between 0.1 and 0.2 dB. This is achieved through calibration, defined as the identification of the constant or time-varying offset to be subt ...
2020Dynamic differential reflectivity calibration using vertical profiles in rain and snow
The accuracy required for a correct interpretation of differential reflectivity (ZDR) is typically estimated to be between 0.1 and 0.2 dB. This is achieved through calibration, defined as the identification of the constant or time-varying offset to be subt ...
2020The Microphysics of Stratiform Precipitation During OLYMPEX: Compatibility Between Triple-Frequency Radar and Airborne In Situ Observations
The link between stratiform precipitation microphysics and multifrequency radar observables is thoroughly investigated by exploiting simultaneous airborne radar and in situ observations collected from two aircraft during the OLYMPEX/RADEX (Olympic Mountain ...
AMER GEOPHYSICAL UNION2019Synoptic moisture pathways associated to virga and precipitation over coastal Adélie Land.
The Antarctic ice sheet store large amount of water under solid form over the continent. As climate change is going on, this reservoir already started to contribute to global sea level rise, and will contribute more in the future. With precipitation being ...
2019The European mountain cryosphere: a review of its current state, trends, and future challenges
Michael Lehning, Wolf Hendrik Huwald
The mountain cryosphere of mainland Europe is recognized to have important impacts on a range of environmental processes. In this paper, we provide an overview on the current knowledge on snow, glacier, and permafrost processes, as well as their past, curr ...
2018Precipitation at Dumont d'Urville, Adelie Land, East Antarctica: the APRES3 field campaigns dataset
Alexis Berne, Jacopo Grazioli, Christophe Praz
Compared to the other continents and lands, Antarctica suffers from a severe shortage of in situ observations of precipitation. APRES3 (Antarctic Precipitation, Remote Sensing from Surface and Space) is a program dedicated to improving the observation of A ...
COPERNICUS GESELLSCHAFT MBH2018From ice phase to liquid precipitation at the ground level: weather radar and machine learning
The relationship between the dominant ice phase hydrometeors and the intensity of precipitation at the ground level has not been extensively studied. This thesis explore and make use of the links between the respective proportions of solid phase hydrometeo ...
2018