Electrical Measurements on the Greenland Ice Sheet Project 2 Core

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. Vol...

Full description

Bibliographic Details
Published in:Journal of Geophysical Research: Oceans
Main Authors: Taylor, Kendrick C., Alley, Richard B., Lamorey, Gregg W., Mayewski, Paul Andrew
Format: Text
Language:unknown
Published: DigitalCommons@UMaine 1997
Subjects:
Glaciogeology
Geochemistry
Glaciochemistry
Glaciology
Cryology
Climate Change
Earth Sciences
Hydrology
Greenland
Greenland ice core
Greenland Ice core Project
Greenland Ice Sheet Project
ice core
Ice Sheet
Online Access:https://digitalcommons.library.umaine.edu/ers_facpub/261
https://doi.org/10.1029/96JC02500
https://digitalcommons.library.umaine.edu/context/ers_facpub/article/1266/viewcontent/Electrical_measurements_on_the_Greenland_Ice_Sheet_Project_2_Core.pdf
Description
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.

Similar Items