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Determination of firn density in ice cores using image analysis
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science. (Glaciologi)
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2007 (English)In: Journal of Glaciology, ISSN 0022-1430, E-ISSN 1727-5652, Vol. 53, no 182, 413-419 p.Article in journal (Refereed) Published
Abstract [en]

This study presents a simple and inexpensive method for deriving a high-resolution density proxy record for the firn part of an ice core using digital images. The image data have better resolution and are less sensitive to core quality than is density derived through di-electric profiling (DEP). Simple image analysis is thus suitable to derive a density proxy record in the firn section of ice cores drilled in the percolation or wet snow zone, and to better interpret the results of a DEP record. The images may be used as a permanent record when evaluating other types of ice-core data. Suggestions are provided to improve data quality and decrease post-processing time of the image analysis in future studies.

Place, publisher, year, edition, pages
2007. Vol. 53, no 182, 413-419 p.
Keyword [en]
Image analysis, ice, firn, density
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:uu:diva-11286DOI: 10.3189/002214307783258369ISI: 000251119800009OAI: oai:DiVA.org:uu-11286DiVA: diva2:39054
Available from: 2008-05-15 Created: 2008-05-15 Last updated: 2017-12-11Bibliographically approved

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Sjögren, BjörnPohjola, Veijo

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