Ice age uncertainty in ice cores from Larsen blue ice area, East Antarctica

• Main Authors: Lee, Giyoon, Ahn, Jinho, Ju, Hyeontae, Ritterbusch, Florian, Oyabu, Ikumi, Buizert, Christo, Kim, S, Moon, Jangil, Ghosh, Sambit, Kawamura, Kenji, Lu, Zheng-Tian, Hong, Sangbum, Han, Changhee, Hur, Soon Do, Jiang, Wei, Yang, Guo-Min
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: blue ice area; carbon dioxide; d15N-N2; d18Oatm; Ice age; standard deviation; Ice core; Larsen; Larsen_BIA_2019; Methane; nitrous oxide; stable water isotopes; Bia; East Antarctica; Victoria Land; Antarc*; Antarctica; ice core; Korea Polar Research Institute; National Institute of Polar Research; The Cryosphere
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.946186; https://doi.org/10.1594/PANGAEA.946186

Blue ice areas (BIAs) have several advantages for reconstructing past climate. However, the complicated ice flow in the areas hinders constraining the age. We apply state-of-the-art techniques and show that the ages cover the last deglaciation for Larsen BIA. Our study demonstrates that Larsen BIA in Northern Victoria Land helps in reconstructing the past climate during the last deglaciation. This data set presents gas composition (CO2, CH4, N2O, δ18Oatm, δ15N-N2, δO2/N2, δAr/N2), stable water isotopes (δ2Hice, δ18Oice), and the chronology of Larsen BIA. The ice cores were collected in January 2019 in Northern Victoria Land, East Antarctica. Gas composition analysis was conducted at Seoul National University and National Institute of Polar Research. Stable water isotopes were analyzed at Korea Polar Research Institute. Data sets were also published as a supplement of Lee et al. (2022) titled with “Chronostratigraphy of Larsen blue ice area in Northern Victoria Land, East Antarctica, and its implications for paleoclimate”, The Cryosphere.