Modeling the snow cover in climate studies - 2. The sensitivity to internal 
snow parameters and interface processes

Loth , B.; Graf, Hans F.

doi:10.1029/97JD01412

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Modeling the snow cover in climate studies - 2. The sensitivity to internal snow parameters and interface processes

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Loth , B.
The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

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Graf, Hans F.
The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

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Citation

Loth, B., & Graf, H. F. (1998). Modeling the snow cover in climate studies - 2. The sensitivity to internal snow parameters and interface processes. Journal of Geophysical Research: Atmospheres, 103, 11329-11340. doi:10.1029/97JD01412.

Cite as: https://hdl.handle.net/21.11116/0000-000C-3BCD-C

Abstract

In order to find an optimal complexity for snow-cover models in climate studies, the influence of single snow processes on both the snow mass balance and the energy fluxes between snow surface and atmosphere has been investigated. Using a sophisticated model, experiments were performed under several different atmospheric and regional conditions (Arctic, midlatitudes, alpine regions). A high simulation quality can be achieved with a multi layered snow-cover model resolving the internal snow processes (cf. part 1,[Loth and Graf, this issue]). Otherwise, large errors can occur, mostly in zones which are of paramount importance for the entire climate dynamics. Owing to simplifications of such a model, the mean energy balance of the snow cover, the turbulent heat fluxes, and the long-wave radiation at the snow surface may alter by between 1 W/m(2) and 8 W/m(2). The snow-surface temperatures can be systematically changed by about 10 K.