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- W4311380046 abstract "Abstract Owing to drifting snow processes, snow accumulation and surface density in polar environments are variable in space and time. We present new field data of manual measurements, repeat terrestrial laser scanning and snow micro-penetrometry from Dronning Maud Land, Antarctica, showing the density of new snow accumulations. We combine these data with published drifting snow mass flux observations, to evaluate the performance of the 1-D, detailed, physics-based snow cover model SNOWPACK in representing drifting snow and surface density. For two sites in East Antarctica with multiple years of data, we found a coefficient of determination for the simulated drifting snow of r 2 = 0.42 and r 2 = 0.50, respectively. The field observations show the existence of low-density snow accumulations during low wind conditions. Successive high wind speed events generally erode these low-density layers while producing spatially variable erosion/deposition patterns with typical length scales of a few metres. We found that a model setup that is able to represent low-density snow accumulating during low wind speed conditions, as well as subsequent snow erosion and redeposition at higher densities during drifting snow events was mostly able to describe the observed temporal variability of surface density in the field." @default.
- W4311380046 created "2022-12-25" @default.
- W4311380046 creator A5008398812 @default.
- W4311380046 creator A5014086128 @default.
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- W4311380046 creator A5056043256 @default.
- W4311380046 creator A5057018762 @default.
- W4311380046 creator A5087029930 @default.
- W4311380046 date "2022-12-14" @default.
- W4311380046 modified "2023-10-09" @default.
- W4311380046 title "Observations and simulations of new snow density in the drifting snow-dominated environment of Antarctica" @default.
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