Krypton and Xenon in the past atmosphere from trapped air in ice coresEntry ID: 0538630_severinghaus
Abstract: Krypton/N2 and xenon/N2 data from trapped air in GISP2 ice core, Greenland (25-14 kyr BP), Dome Fuji ice core, Antarctica (25 kyr BP to recent), and Vostok ice core, Antarctica (125 kyr BP to 110 kyr BP). These measurements are used to infer past changes in mean ocean temperature, based on solubility relationships. Argon and krypton isotopic ratios, along with d15N of N2, are used to make gravitational and thermal fractionation corrections, to reconstruct the atmospheric ratios.
Data Set Citation
Dataset Originator/Creator: Jeff Severinghaus
Dataset Title: Paleoatmospheric Krypton and Xenon: Glacial Inception and Termination I
Start Date: 2006-03-01Stop Date: 2009-02-28
ISO Topic Category
Email: jseveringhaus at ucsd.edu
Scripps Institution of Oceanography 9500 Gilman Dr.
City: La Jolla
Province or State: CA
Postal Code: 92093-0244
Publications produced as a result of this research:
Hamme, R.C., and Severinghaus, J.P.. "Trace gas disequilibria during deep-water formation," Deep-Sea Research I, v.54, 2007, p. 939.
Melissa A. Headly, Jeffrey P. Severinghaus. "A Method to Measure Kr/N2 Ratios in Air Bubbles Trapped in Ice Cores, and its Application in Reconstructing Past Mean Ocean Temperature," Journal of Geophysical Research - Atmospheres, v.112, 2007, p. D19105.
Melissa A. Headly, Jinho Ahn, Jeffrey P. Severinghaus. "Using Kr/Ar and Xe/Ar Ratios to Identify Melt Layers in Ice Cores," EOS Trans. AGU, Fall Meet. Suppl., Abstract, v.86, 2005, p. PP33C1589.
Severinghaus, J. P., Kawamura, K., Headly, M.. "Evidence of Deep Air Convection in Firn at Vostok, Antarctica in the Penultimate Glacial Maximum from Precise Measurements of Kr Isotopes," EOS Trans. AGU, Fall Meet. Suppl., Abstract, v.87, 2006, p. U33C-03.
Creation and Review Dates
DIF Creation Date: 2009-04-01
Last DIF Revision Date: 2009-04-06