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Snow microstructure on sea ice- first results from the MOSAiC expedition
  • +2
  • Amy Macfarlane,
  • David Nicholas Wagner,
  • Ruzica Dadic,
  • Stefan Hämmerle,
  • Martin Schneebeli
Amy Macfarlane
WSL Institute for Snow and Avalanche Research SLF

Corresponding Author:[email protected]

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David Nicholas Wagner
WSL Institute for Snow and Avalanche Research SLF
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Ruzica Dadic
Victoria University of Wellington
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Stefan Hämmerle
SCANCO Medical AG
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Martin Schneebeli
WSL Institute for Snow and Avalanche Research SLF
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Abstract

We measured during the MOSAiC field experiment the snow microstructure on sea-ice from early winter to the melt season, and continued measurements with the surface scattering layer. We could measure every week 1-2 full snow profiles between 0.1-0.3 m. We extracted, mostly in-situ, cores of 48-78 mm diameter and of about 0.1 m length, and scanned with 18-28 µm resolution. The goal of these measurements is to understand the formation and metamorphism of the snowpack in detail, and to derive detailed geometrical and physical properties from the samples. We will present first examples and and overview of characteristic snow profiles from leg 1 - 4, spanning the winter, spring and melt season.