Publications associées à National Snow and Ice Data Center

Change in snow distribution patterns over an Antarctic ice floe following a snow storm event

Michael Lehning, Katherine Colby Leonard, Ernesto Trujillo Gomez

Sea ice, snow and atmosphere interactions are major drivers of the spatial distribution of snow over sea ice in polar regions. Here, we quantify changes caused by a snow storm in the spatial distribution of snow over an Antarctic ice floe at resolutions of ...

2015

Theoretical analysis of errors when estimating snow distribution through point measurements

Michael Lehning, Ernesto Trujillo Gomez

In recent years, marked improvements in our knowledge of the statistical properties of the spatial distribution of snow properties have been achieved thanks to improvements in measuring technologies (e.g., LIDAR, terrestrial laser scanning (TLS), and groun ...

Copernicus Gesellschaft Mbh2015

Evaluation of modelled snow depth and snow water equivalent at three contrasting sites in Switzerland using SNOWPACK simulations driven by different meteorological data input

Michael Lehning, Charles Fierz

The knowledge of certain snow indices such as the number of snow days, maximum snow depth and snow water equivalent or the date of snow disappearance is important for many economical and ecological applications. However, snow data are frequently not availa ...

Elsevier2014

Theoretical Framework for the Assessment of Uncertainties in Snow Depth Measurements

Michael Lehning, Ernesto Trujillo Gomez

2014

Analysis of surface drag over Antarctic sea ice from High-Resolution measurements from Terrestrial Laser Scanning and Large Eddy Simulations

Michael Lehning, Marc Parlange, Katherine Colby Leonard, Charles Vivant Ignacio Meneveau, Ernesto Trujillo Gomez, Marco Giovanni Giometto

Sea ice/snow surface interactions with the atmosphere are major drivers of large-scale patterns of sea ice flows and deformations in Polar Regions. Climate and weather prediction models require parameterizations of the subgrid-scale surface drag caused by ...

2014

Spatially-resolved mean flow and turbulence help explain observed erosion and deposition patterns of snow over Antarctic sea ice

Michael Lehning, Marc Parlange, Katherine Colby Leonard, Charles Vivant Ignacio Meneveau, Ernesto Trujillo Gomez, Marco Giovanni Giometto

Sea ice-atmosphere interactions are major drivers of patterns of sea ice flows and deformations in Polar regions, and affect snow erosion and deposition at the surface. Here, we combine analyses of sea ice surface topography at very high-resolutions (~1-10 ...

2014

Analytic probability distributions for snow-dominated streamflow

Andrea Rinaldo, Bettina Schaefli, Gianluca Botter

We propose a novel analytical description of the streamflow probability distribution functions (pdfs) in Alpine catchments characterized by pronounced, snow-dominated winter low flows. Knowledge about such hydrological regimes is crucial for water resource ...

American Geophysical Union2013

Event-driven deposition of snow on the Antarctic Plateau: analyzing field measurements with SNOWPACK

Michael Lehning, Charles Fierz

Antarctic surface snow has been studied by means of continuous measurements and observations over a period of 3 yr at Dome C. Snow observations include solid deposits in form of precipitation, diamond dust, or hoar, snow temperatures at several depths, rec ...

Copernicus Gesellschaft Mbh2013

LES modeling of wind over Antarctic snow-ice formations using a dynamic surface roughness approach.

Michael Lehning, Marc Parlange, Katherine Colby Leonard, Charles Vivant Ignacio Meneveau, Ernesto Trujillo Gomez, Marco Giovanni Giometto

Wind surface drag over sea-ice is a primary control on sea-ice flow patterns and deformations at scales that are important for climate and weather prediction models. Here, we perform a series of Large Eddy Simulations (LES) of fully developed flow over hig ...

2013

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National Snow and Ice Data Center

Change in snow distribution patterns over an Antarctic ice floe following a snow storm event

Theoretical analysis of errors when estimating snow distribution through point measurements

Local Extremes In The Lidar-Derived Snow Cover Of Alpine Glaciers

Evaluation of modelled snow depth and snow water equivalent at three contrasting sites in Switzerland using SNOWPACK simulations driven by different meteorological data input

Theoretical Framework for the Assessment of Uncertainties in Snow Depth Measurements

Analysis of surface drag over Antarctic sea ice from High-Resolution measurements from Terrestrial Laser Scanning and Large Eddy Simulations

Spatially-resolved mean flow and turbulence help explain observed erosion and deposition patterns of snow over Antarctic sea ice

Analytic probability distributions for snow-dominated streamflow

Event-driven deposition of snow on the Antarctic Plateau: analyzing field measurements with SNOWPACK

LES modeling of wind over Antarctic snow-ice formations using a dynamic surface roughness approach.

Graph Chatbot

Chattez avec Graph Search

Analysis of surface drag over Antarctic sea ice from High-Resolution measurements from Terrestrial Laser Scanning and Large Eddy Simulations

Change in snow distribution patterns over an Antarctic ice floe following a snow storm event

Theoretical Framework for the Assessment of Uncertainties in Snow Depth Measurements

Theoretical analysis of errors when estimating snow distribution through point measurements

Event-driven deposition of snow on the Antarctic Plateau: analyzing field measurements with SNOWPACK

Analytic probability distributions for snow-dominated streamflow

Evaluation of modelled snow depth and snow water equivalent at three contrasting sites in Switzerland using SNOWPACK simulations driven by different meteorological data input

LES modeling of wind over Antarctic snow-ice formations using a dynamic surface roughness approach.

Local Extremes In The Lidar-Derived Snow Cover Of Alpine Glaciers

Spatially-resolved mean flow and turbulence help explain observed erosion and deposition patterns of snow over Antarctic sea ice