Yukimarimo at Dome C, Antarctica

Balls of frost (yukimarimo) up to 12 cm in diameter and weighing up to 14 g were observed forming in light winds in the temperature range, −70 to −60 °C at Dome Charlie, Antarctica, during the 2014 winter. Their density ranged from 15 to 60 kg m−3. Meteorological conditions during four formation per...

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Bibliographic Details
Published in:Journal of Glaciology
Main Author: IGOR PETENKO
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press 2016
Subjects:
Antarctic glaciology
atmosphere/ice/ocean interactions
snow/ice surface processes
Environmental sciences
GE1-350
Meteorology. Climatology
QC851-999
Antarctic
Dome Charlie
Antarc*
Antarctica
Journal of Glaciology
Online Access:https://doi.org/10.1017/jog.2016.30
https://doaj.org/article/34a2ee6afc9744ba8c3209fdcbec18b2
Description
Summary:Balls of frost (yukimarimo) up to 12 cm in diameter and weighing up to 14 g were observed forming in light winds in the temperature range, −70 to −60 °C at Dome Charlie, Antarctica, during the 2014 winter. Their density ranged from 15 to 60 kg m−3. Meteorological conditions during four formation periods are tabulated. Their formation seems to be due to a clumping of crystals caused by electrostatic attraction, followed by the collection of hoarfrost crystals while rolling along the snow surface.

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