Simon Schneiderbauer, Alexander Prokop,
"The atmospheric snow-transport model: SnowDrift3D"
, in Journal of Glaciology, Vol. 52, Nummer 203, Seite(n) 526, 2011, ISSN: 0022-1430
Original Titel:
The atmospheric snow-transport model: SnowDrift3D
Sprache des Titels:
Englisch
Original Kurzfassung:
SnowDrift3D, a high-resolution, atmospheric snow-transport model, is presented for the first time. In contrast to most state-of-the-art snowdrift models, atmospheric particle transport, i.e. saltation and suspension, is accounted for by one passive transport equation. The model uses unsteady wind fields (spatial resolution of up to 2 m) computed with an atmospheric computational fluid dynamics model that is directly connected to the numerical weather prediction model ALADIN. Sensitivity runs show that (1) the saltation mass flux is a function of cubic shear velocity, u?^3, (2) the model is marginally sensitive to the grid spacing at high resolutions (up to 2 m), (3) the model computes the redistribution of snow at high resolution in real time on dual core personal computers and (4) the changing topography of the snow cover should be included in cases of local erosion or deposition of a large amount of snow. Finally, we present a comparison of modeled and measured snow distributions obtained by terrestrial laser scanning showing area-wide linear correlation up to R = 0.33.
Forschungs-