Preprints
https://doi.org/10.5194/essd-2022-384
https://doi.org/10.5194/essd-2022-384
 
30 Nov 2022
30 Nov 2022
Status: this preprint is currently under review for the journal ESSD.

The Ant-Iso dataset: a compilation of Antarctic surface snow isotopic observations

Jiajia Wang1, Hongxi Pang1, Shuangye Wu2, Spruce W. Schoenemann3, Ryu Uemura4, Alexey Ekaykin5,6, Martin Werner7, Alexandre Cauquoin8, Sentia Goursaud Oger9,a, Summer Rupper10, and Shugui Hou1,11 Jiajia Wang et al.
  • 1Key Laboratory of Coast and Island development of Ministry of Education, School of Geography and Ocean Science, Nanjing University, Nanjing, China
  • 2Department of Geology and Environmental Geosciences, University of Dayton, Dayton, USA
  • 3Environmental Sciences Department, The University of Montana Western, Dillon, MT, 59725, USA
  • 4Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
  • 5Climate and Environmental Research Laboratory, Arctic and Antarctic Research Institute, 38 Beringa st., 199397 St. Petersburg, Russia
  • 6St. Petersburg State University, 33–35, 10th line VO, 199178 St. Petersburg, Russia
  • 7Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Sciences, Bremerhaven, Germany
  • 8Institute of Industrial Science (IIS), The University of Tokyo, Kashiwa, Japan
  • 9Department of Earth Sciences, University of Cambridge, Cambridge, UK
  • 10Department of Geography, University of Utah, Salt Lake City, UA, United States
  • 11School of Oceanography, Shanghai Jiao Tong University, Shanghai, China
  • aCurrently CEA, DAM, DIF, F-91297 Arpajon, France

Abstract. Stable water isotopic observations in surface snow over Antarctica provide a foundation for validating isotopic models and interpreting Antarctic ice core records. Here, we present a new compilation of Antarctic surface snow isotopic dataset with strict quality control from published and unpublished sources including measurements from snow pits, snow cores, ice cores, deep surface snow, and precipitation (multi-year average values). The dataset contains a total of 1867 data points, including 1604 locations for oxygen isotope ratio (δ18O) and 1278 locations for deuterium isotope ratio (δ2H). 1204 locations have both δ18O and δ2H, from which d-excess (d-excess = δ2H − 8 × δ18O) can be calculated. The dataset also contains geographic and climate information. The database has a wide range of potential applications, such as the study of the spatial distribution of water isotopes in Antarctica, the evaluation of climate models, and the reconstruction and interpretation of Antarctic ice core records. As an example of model evaluation, the compiled isotopic dataset is used to assess the performance of isotope-enabled atmospheric general circulation models (AGCMs) on simulating the spatial distribution of water isotopes over Antarctica. This dataset is the most comprehensive compilation so far of observed water isotope records at multi-year average scale from multiple sources for Antarctica. It is available for download at https://doi.org/10.5281/zenodo.7294183 (Wang et al., 2022).

Jiajia Wang et al.

Status: open (until 12 Feb 2023)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2022-384', Anonymous Referee #1, 24 Jan 2023 reply
  • RC2: 'Comment on essd-2022-384', Anonymous Referee #2, 03 Feb 2023 reply

Jiajia Wang et al.

Data sets

Antarctic surface snow isotopic dataset Jiajia Wang; Hongxi Pang; Shugui Hou https://doi.org/10.5281/zenodo.7294183

Jiajia Wang et al.

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Short summary
Stable water isotopic observations in surface snow over Antarctica provide a basis for validating isotopic models and interpreting Antarctic ice core records. This study presents a new compilation of Antarctic surface snow isotopic dataset based on published and unpublished sources. The database has a wide range of potential applications in studying spatial distribution of water isotopes, model validation, and reconstruction and interpretation of Antarctic ice core records.