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

• Main Authors: Morgan, Jacob Davies, Buizert, Christo, Fudge, Tyler Jeffrey, Kawamura, Kenji, Severinghaus, Jeffrey Peck, Trudinger, Cathy M.
• Format: Text
• Language: English
• Published: 2022
• Subjects: Antarctic; Greenland; South Pole; Dome Fuji; Antarc*; Greenland ice cores; ice core; South pole
• Online Access: https://doi.org/10.5194/tc-2022-49; https://tc.copernicus.org/preprints/tc-2022-49/

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 δ 15 N and δ 40 Ar in the ice core are each set by the amount of gravitational and thermal fractionatio...