Gas isotope thermometry in the South Pole and Dome Fuji ice cores provides evidence for seasonal rectification of ice core gas records

• Published in: The Cryosphere
• Main Authors: Morgan, Jacob D, Buizert, Christo, Fudge, Tyler J, Kawamura, Kenji, Severinghaus, Jeffrey P, Trudinger, Cathy M
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: eScholarship, University of California 2022
• Subjects: Climate Action; Oceanography; Physical Geography and Environmental Geoscience; Meteorology & Atmospheric Sciences; Antarc*; Antarctic; Greenland; Greenland ice cores; ice core; South pole; The Cryosphere
• Online Access: https://escholarship.org/uc/item/7wp7t2bj; https://escholarship.org/content/qt7wp7t2bj/qt7wp7t2bj.pdf; https://doi.org/10.5194/tc-16-2947-2022

Abstract. Gas isotope thermometry using the isotopes of molecular nitrogen and argon has been used extensively to reconstruct past surface temperature change from Greenland ice cores. The gas isotope ratios δ15N and δ40Ar in the ice core are each set by the amount of gravitational and thermal fracti...