Brief communication: Pancake ice floe size distribution during the winter expansion of the Antarctic marginal ice zone
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Published:2019-01-09
Issue:1
Volume:13
Page:41-48
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ISSN:1994-0424
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Container-title:The Cryosphere
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language:en
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Short-container-title:The Cryosphere
Author:
Alberello AlbertoORCID, Onorato Miguel, Bennetts LukeORCID, Vichi MarcelloORCID, Eayrs ClareORCID, MacHutchon Keith, Toffoli AlessandroORCID
Abstract
Abstract. The size distribution of pancake ice floes is calculated from images acquired
during a voyage to the Antarctic marginal ice zone in the winter expansion
season. Results show that 50 % of the sea ice area is made up of floes with
diameters of 2.3–4 m. The floe size distribution shows two distinct slopes
on either side of the 2.3–4 m range, neither of which conforms to a power
law. Following a relevant recent study, it is conjectured that the growth of
pancakes from frazil forms the distribution of small floes (D<2.3 m), and
welding of pancakes forms the distribution of large floes (D>4 m).
Publisher
Copernicus GmbH
Subject
Earth-Surface Processes,Water Science and Technology
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