Document Type

Article

Publication Title

Journal of Geophysical Research—Oceans

Publisher

American Geophysical Union

Rights and Access Note

This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s).

Publication Date

11-30-1997

First Page

26,511

Last Page

26,517

Issue Number

C12

Volume Number

102

Abstract/ Summary

The Greenland Ice Sheet Project 2 (GISP2) electrical conductivity measurement (ECM) record is an indication of the concentration of H+ in the core. The ECM detected seasonal variations in the nitrate concentration of the core which were used to assist in dating the core by annual layer counting. Volcanic eruptions that produce acidic aerosols are recorded in the ECM record. Evidence of biomass burning is detected by the ECM because fire-related ammonium emissions neutralize the acids in the core. Rapid climate transitions associated with the Younger Dryas and Dansgaard/Oeschger interstadial events alter the concentration of alkaline dust and are detected by the ECM. The ECM has been used to develop stratigraphic ties between the GISP2 and the Greenland Ice Core Project cores. Users of the data should be aware of some instrument-related artifacts in the ECM record.

Citation/Publisher Attribution

Taylor, K. C., R. B. Alley, G. W. Lamorey, and P. Mayewski (1997), Electrical measurements on the Greenland Ice Sheet Project 2 Core, Journal of Geophysical Research

Publisher Statement

© Copyright 1997 by the American Geophysical Union

DOI

10.1029/96JC02500

Version

publisher's version of the published document

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In Copyright - Educational Use Permitted.