Publication
Unraveling hydrometeor mixtures in polarimetric radar measurements
Related publications (37)
Snowfall microphysics: a dual-frequency and Doppler spectral radar perspective
Anne-Claire Marie Billault--Roux
Snowfall is an essential component of the hydrological cycle, as it is involved in most precipitation on Earth, either directly as snow falling to the ground or indirectly as rain melted from snow. At the same time, the ice phase of clouds and precipitatio ...
EPFL2023Radar 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 ...
EPFL2022Identification of snowfall microphysical processes from Eulerian vertical gradients of polarimetric radar variables
Alexis Berne, Josué Etienne Gehring, Etienne Gabriel Henri Vignon, Noémie Planat
Polarimetric radar systems are commonly used to study the microphysics of precipitation. While they offer continuous measurements with a large spatial coverage, retrieving information about the microphysical processes that govern the evolution of snowfall ...
COPERNICUS GESELLSCHAFT MBH2021Leveraging meteorological radars to investigate the influence of atmospheric dynamics on snowfall microphysics
Precipitation is the result of a chain of meteorological processes ranging from the large- to the micro-scale. While the transport of moisture and lifting mechanisms leading to cloud formation are mostly governed by dynamical processes, the formation and g ...
EPFL2021Microphysics and dynamics of snowfall associated with a warm conveyor belt over Korea
Alexis Berne, Josué Etienne Gehring, Nikola Besic, Etienne Gabriel Henri Vignon, Nicolas Jean François Jullien
On 28 February 2018, 57mm of precipitation associated with a warm conveyor belt (WCB) fell within 21 h over South Korea. To investigate how the large-scale circulation influenced the microphysics of this intense precipitation event, we used radar measureme ...
2020Learning about the vertical structure of radar reflectivity using hydrometeor classes and neural networks in the Swiss Alps
Alexis Berne, Marco Gabella, Urs Martin Germann, Floortje Elisabeth Maria Van den Heuvel
The use of radar for precipitation measurement in mountainous regions is complicated by many factors, especially beam shielding by terrain features, which, for example, reduces the visibility of the shallow precipitation systems during the cold season. Whe ...
2020Statistical analysis of the spatial and temporal variability of polarimetric weather radar signals in the Alps
Floortje Elisabeth Maria Van den Heuvel
The accurate estimation of precipitation quantities arriving at the ground in complex terrain such as the Alps is complicated by many factors. The orography interacts with atmospheric flow and thus influences the spatial and temporal distribution as well a ...
EPFL2019The 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 UNION2019From model to radar variables: a new forward polarimetric radar operator for COSMO
Alexis Berne, Daniel Wolfensberger
In this work, a new forward polarimetric radar operator for the COSMO numerical weather prediction (NWP) model is proposed. This operator is able to simulate measurements of radar reflectivity at horizontal polarization, differential reflectivity as well a ...
Copernicus GmbH2018A polarimetric radar operator to evaluate precipitation from the COSMO atmospheric model
Weather radars provide real-time measurements of precipitation at a high temporal and spatial resolution and over a large domain. A drawback, however, it that these measurements are indirect and require careful interpretation to yield relevant information ...
EPFL2018