Publications de Daniela Brito Melo

Understanding snow saltation parameterizations: lessons from theory, experiments and numerical simulations

Michael Lehning, Daniela Brito Melo, Armin Sigmund

Drifting and blowing snow are important features in polar and high mountain regions. They control the surface mass balance in windy conditions and influence sublimation of snow and ice surfaces. Despite their importance, model representations in weather an ...

2024

Constraining Latent and Sensible Heat Fluxes during Drifting and Blowing Snow Events in Antarctica using in–situ Measurements and Large–Eddy Simulations

Varun Sharma, Michael Lehning, Wolf Hendrik Huwald, Jérôme François Sylvain Dujardin, Franziska Gerber, Daniela Brito Melo, Francesco Comola, Armin Sigmund

Reliable predictions of sea level rise require a quantitative understanding of the mass balance of the Antarctic ice sheet. Water vapor exchange between snow and the atmospheric boundary layer may be an important term in the mass balance equation but curre ...

2023

Snow transport in extreme environments: from small to large scale modeling

Daniela Brito Melo

The cold regions on Earth, such as the polar and high mountain regions, are snow covered for at least a part of the year. These snow-covered surfaces are highly dynamic, particularly under the influence of strong winds. The aeolian or wind-driven transport ...

EPFL2023

Correction to: Evidence of Strong Flux Underestimation by Bulk Parametrizations During Drifting and Blowing Snow

Varun Sharma, Michael Lehning, Wolf Hendrik Huwald, Jérôme François Sylvain Dujardin, Daniela Brito Melo, Francesco Comola, Armin Sigmund, Koichi Nishimura

Correction to: Boundary-Layer Meteorology (2022) 182:119–146 https://doi.org/10.1007/s10546-021-00653-x In the original article author found some corrections post publication that the units in Eq. 7 are currently not consistent and the text refers to a d ...

2023

Flow and Snow in Complex Terrain: across-scale modelling for a correct surface mass balance

Varun Sharma, Michael Lehning, Wolf Hendrik Huwald, Jérôme François Sylvain Dujardin, Franziska Gerber, Daniela Brito Melo, Nander Wever, Armin Sigmund, David Nicholas Wagner

Preferential deposition of snow precipitation, snow transport and snow sublimation modify the mass which gets incorporated into or removed from the seasonal or perennial snow cover. These processes happen at very small scales from snow grain size to larger ...

2023

Modeling Snow Saltation: The Effect of Grain Size and Interparticle Cohesion

Varun Sharma, Michael Lehning, Daniela Brito Melo, Francesco Comola, Armin Sigmund

The surface of the Earth is snow-covered at least seasonally over large areas. This snow surface is highly dynamic, particularly under the influence of strong winds. The motion of snow particles driven by the wind not only changes the snow cover but has im ...

AMER GEOPHYSICAL UNION2022

High-speed imaging of snow saltation: wind tunnel experiments using natural snow

Michael Lehning, Daniela Brito Melo, Benjamin Andreas Walter

Drifting snow is a multi-scale process. It is composed of particles rolling and sliding along the surface, particles in saltation following short ballistic trajectories in the first 10 cm above the surface and particles in suspension at higher regions of t ...

2022

Parameterizing snow saltation: the exponential decay of the mass flux profile and its relation to the saltation dynamics

Varun Sharma, Michael Lehning, Daniela Brito Melo, Armin Sigmund

Drifting snow events lead to snow redistribution and enhance snow sublimation. Taking into account the importance of snow sublimation to the correct prediction of the surface mass balance, a general consensus has emerged within the scientific community on ...

2022

The inFuence of drifting and blowing snow on surface (turbulent) mass- and energy exchange assessed with different methods

Michael Lehning, Wolf Hendrik Huwald, Jérôme François Sylvain Dujardin, Franziska Gerber, Daniela Brito Melo, Armin Sigmund, Benjamin Andreas Walter

Drifting and blowing snow is a dominant process shaping snow-covered surfaces in particular in extreme environments such as high mountains or polar regions. Because the process is complicated to describe, as it covers scales from below 1 mm to several kilo ...

2021

The influence of drifting and blowing snow on surface (turbulent) mass- and energy exchange assessed with different methods

Varun Sharma, Michael Lehning, Wolf Hendrik Huwald, Jérôme François Sylvain Dujardin, Franziska Gerber, Daniela Brito Melo, Armin Sigmund, Benjamin Andreas Walter

Drifting and blowing snow is a dominant process shaping snow-covered surfaces in particular in extreme environments such as high mountains or polar regions. Because the process is complicated to describe, as it covers scales from below 1 mm to several kilo ...

2021

Daniela Brito Melo

Understanding snow saltation parameterizations: lessons from theory, experiments and numerical simulations

Constraining Latent and Sensible Heat Fluxes during Drifting and Blowing Snow Events in Antarctica using in–situ Measurements and Large–Eddy Simulations

Snow transport in extreme environments: from small to large scale modeling

Correction to: Evidence of Strong Flux Underestimation by Bulk Parametrizations During Drifting and Blowing Snow

Flow and Snow in Complex Terrain: across-scale modelling for a correct surface mass balance

Modeling Snow Saltation: The Effect of Grain Size and Interparticle Cohesion

High-speed imaging of snow saltation: wind tunnel experiments using natural snow

Parameterizing snow saltation: the exponential decay of the mass flux profile and its relation to the saltation dynamics

The inFuence of drifting and blowing snow on surface (turbulent) mass- and energy exchange assessed with different methods

The influence of drifting and blowing snow on surface (turbulent) mass- and energy exchange assessed with different methods

Graph Chatbot

Chattez avec Graph Search

Constraining Latent and Sensible Heat Fluxes during Drifting and Blowing Snow Events in Antarctica using in–situ Measurements and Large–Eddy Simulations

Understanding snow saltation parameterizations: lessons from theory, experiments and numerical simulations

Parameterizing snow saltation: the exponential decay of the mass flux profile and its relation to the saltation dynamics

High-speed imaging of snow saltation: wind tunnel experiments using natural snow

Modeling Snow Saltation: The Effect of Grain Size and Interparticle Cohesion

Snow transport in extreme environments: from small to large scale modeling

Flow and Snow in Complex Terrain: across-scale modelling for a correct surface mass balance

The influence of drifting and blowing snow on surface (turbulent) mass- and energy exchange assessed with different methods

The inFuence of drifting and blowing snow on surface (turbulent) mass- and energy exchange assessed with different methods

Correction to: Evidence of Strong Flux Underestimation by Bulk Parametrizations During Drifting and Blowing Snow