Open AccessPhysical length scales of wind-blown snow redistribution and accumulation on relatively smooth Arctic first-year sea ice
Author(s) -
Wonkyu Moon,
Vishnu Nandan,
Randall K. Scharien,
Jeremy Wilkinson,
John J. Yackel,
A. P. Barrett,
Isobel Lawrence,
Rebecca A. Segal,
Julienne Stroeve,
Mallik Mahmud,
Patrick J. Duke,
Brent Else
Publication year - 2019
Publication title -
environmental research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.37
H-Index - 124
ISSN - 1748-9326
DOI - 10.1088/1748-9326/ab3b8d
Subject(s) - snow , sea ice , arctic , arctic ice pack , climatology , environmental science , geology , atmospheric sciences , bay , physical geography , oceanography , geomorphology , geography
Snow thickness measurements over relatively smooth Arctic first-year sea ice, obtained near Cambridge Bay in the Canadian Arctic (2014, 2016 and 2017) and near Elson Lagoon in the Alaskan Arctic (2003 and 2006), are analyzed to quantify physical length-scales and their relevant scaling behaviors. We use the multi-fractal temporally weighted detrended fluctuation analysis method to detect two major physical length-scales from the two independent study locations. Our results suggest that physical processes underlying the formation of snow dunes are consistent and that the wind is the main process shaping the snow thickness variability and redistribution. One scale, around 10 m, appears to be related to the formation of the snow ‘dunes’, while the other scale, between 30 and 100 m, is likely associated with the various interactions of the snow dunes such as merging, calving and lateral linking. Results imply that snow on level sea ice shows self-organized characteristics.