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Sea ice density measurements. Methods and uncertainties
2016 (English)In: Cold Regions Science and Technology, ISSN 0165-232X, E-ISSN 1872-7441, Vol. 131, 46-52 p.Article in journal (Refereed) Published
Abstract [en]

Sea ice density is an important engineering and geophysical parameter. However, it lacks a standard method of measurement. In this paper, we show that the hydrostatic weighing method is the best available method that can capture the natural variation of the ice density throughout the ice thickness below the water line. The hydrostatic weighing method has a lower measurement uncertainty (0.2%) in comparison with the most common mass/volume method, which has an uncertainty of 4% when applied to ice samples with lengths and diameters of similar to 70 mm. The density of first-year level ice below the waterline measured by the hydrostatic weighing method in the present study lies in a range of 894-921 kg m(-3). The density of rafted multiyear ice and the ice above the waterline had a wider range, 863-929 kg m(-3). (C) 2016 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2016. Vol. 131, 46-52 p.
Keyword [en]
Sea ice; Density; Hydrostatic weighing; Measurement uncertainty
National Category
Engineering and Technology
Research subject
SWEDARCTIC 2013, OATRC 2013
Identifiers
URN: urn:nbn:se:polar:diva-3395DOI: 10.1016/j.coldregions.2016.09.001OAI: oai:DiVA.org:polar-3395DiVA: diva2:1075179
Funder
Swedish Polar Research Secretariat
Available from: 2017-02-17 Created: 2017-02-17 Last updated: 2017-11-29Bibliographically approved

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