Automatic reconstruction of polycrystalline ice microstructure from image analysis: application to the EPICA ice core at Dome Concordia, Antarctica

Abstract A digital image-processing approach is proposed which allows the extraction of two-dimensional polycrystalline ice microstructure (grain boundaries) from thin sections observed between cross-polarisers. It is based on image segmentation of colour images. The method is applied to the prelimi...

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Bibliographic Details
Published in:Journal of Glaciology
Main Authors: Gay, Michel, Weiss, Jerome
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1999
Subjects:
Earth-Surface Processes
Antarc*
Antarctica
EPICA
ice core
Journal of Glaciology
Online Access:http://dx.doi.org/10.1017/s0022143000001416
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000001416
Description
Summary:Abstract A digital image-processing approach is proposed which allows the extraction of two-dimensional polycrystalline ice microstructure (grain boundaries) from thin sections observed between cross-polarisers. It is based on image segmentation of colour images. The method is applied to the preliminary analysis of the shallow ( Holocene) ice of the European Project for Ice Coring in Antarctica (EPICA) ice core at Dome Concordia. Structural parameters, such as the mean cross-sectional area, shape anisotropy and grain morphology, are obtained. The interest and limitations of this automatic procedure are discussed.

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