Snow distribution over sea ice is an important control on sea ice physical and biological processes. We combine measurements of the atmospheric boundary layer and blowing snow on an Antarctic sea ice floe with terrestrial laser scanning to characterize a typical storm and its influence on the spatial patterns of snow distribution at resolutions of 1–10?cm over an area of 100?m?×?100?m. The pre-storm surface exhibits multidirectional elongated snow dunes formed behind aerodynamic obstacles.
