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THE USE OF THE ECM METHOD AS AN INDICATOR OF HIGH DUST CONCENTRATIONS IN POLAR ICE CORES

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HAL Id: jpa-00226255

https://hal.archives-ouvertes.fr/jpa-00226255

Submitted on 1 Jan 1987

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THE USE OF THE ECM METHOD AS AN

INDICATOR OF HIGH DUST CONCENTRATIONS IN POLAR ICE CORES

C. Hammer

To cite this version:

C. Hammer. THE USE OF THE ECM METHOD AS AN INDICATOR OF HIGH DUST CONCEN- TRATIONS IN POLAR ICE CORES. Journal de Physique Colloques, 1987, 48 (C1), pp.C1-697-C1- 697. �10.1051/jphyscol:19871113�. �jpa-00226255�

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JOURNAL DE PHYSIQUE

Colloque C1, suppl6ment au n o 3, Tome 48, mars 1987

THE USE OF THE ECM METHOD AS AN INDICATOR OF HIGH DUST CONCENTRATIONS IN POLAR ICE CORES

C.H. HAMMER

Department of Glaciology, Geophysical Institute, University of Copenhagen, DK-2200 Copenhagen, Denmark

Abstract : M~M: pH and dust concentration data obtained on the Dye 3, Camp Century and Byrd ice cores suggest, that the ECM data may be used to indicate high dust concentrations in polar ice cores i.e. higher than approx. 300)'-g/kg ice.

The dust concentration can only be inferred in a semi-quantitative way as the calibration curve shows a high scatter, especially for the internal 300-500 /c g/kg .

Various data from the 3 cores will be presented in order to illustrate the potential and limitations.

'ECM : Electrical Conductivity Method.

Article published online by EDP Sciences and available at http://dx.doi.org/10.1051/jphyscol:19871113

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