Articles | Volume 19, issue 8
https://doi.org/10.5194/cp-19-1653-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/cp-19-1653-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
14 Aug 2023
Research article |
| 14 Aug 2023
| 14 Aug 2023
Climatology of the Mount Brown South ice core site in East Antarctica: implications for the interpretation of a water isotope record
Sarah L. Jackson
CORRESPONDING AUTHOR
Research School of Earth Sciences, Australian National University,
Canberra ACT 2601, Australia
Australian Centre for Excellence in Antarctic Science, Australian
National University, Canberra ACT 2601, Australia
ARC Centre of Excellence for Climate Extremes, Australian National
University, Canberra ACT 2601, Australia
Tessa R. Vance
Australian Antarctic Program Partnership, Institute for Marine & Antarctic Studies, University of Tasmania, Hobart TAS 7004, Australia
Camilla Crockart
Australian Antarctic Program Partnership, Institute for Marine & Antarctic Studies, University of Tasmania, Hobart TAS 7004, Australia
Andrew Moy
Department of Climate Change, Energy, the Environment and Water, Australian Antarctic Division, Kingston TAS 7050, Australia
Australian Antarctic Program Partnership, Institute for Marine & Antarctic Studies, University of Tasmania, Hobart TAS 7004, Australia
Christopher Plummer
Australian Antarctic Program Partnership, Institute for Marine & Antarctic Studies, University of Tasmania, Hobart TAS 7004, Australia
Nerilie J. Abram
Research School of Earth Sciences, Australian National University,
Canberra ACT 2601, Australia
Australian Centre for Excellence in Antarctic Science, Australian
National University, Canberra ACT 2601, Australia
ARC Centre of Excellence for Climate Extremes, Australian National
University, Canberra ACT 2601, Australia
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Cited
15 citations as recorded by crossref.
- An annually resolved chronology for the Mount Brown South ice cores, East Antarctica T. Vance et al. https://doi.org/10.5194/cp-20-969-2024
- Trends in Extreme Precipitation Events across Antarctica C. Sui et al. https://doi.org/10.1007/s00376-025-4461-2
- Imprints of sea ice, wind patterns, and atmospheric systems on summer water isotope signatures at Hercules Névé, East Antarctica S. Kim et al. https://doi.org/10.5194/tc-19-5655-2025
- Cryptotephra in the East Antarctic Mount Brown South ice core M. Harlan et al. https://doi.org/10.5194/cp-22-1057-2026
- Atmospheric rivers in Antarctica J. Wille et al. https://doi.org/10.1038/s43017-024-00638-7
- High resolution continuous flow analysis impurity data from the Mount Brown South ice core, East Antarctica M. Harlan et al. https://doi.org/10.5194/essd-17-6255-2025
- Impacts of Eastern and Central Pacific El Niño‐Southern Oscillation on Antarctic Extreme Precipitation Occurrences L. Yu et al. https://doi.org/10.1002/joc.70258
- Climate influences on sea salt variability at Mount Brown South, East Antarctica H. Shea et al. https://doi.org/10.5194/cp-21-2009-2025
- Spatial Variations in Surface Snow Chemistry and Stable Isotope Composition Along Different Transects of the Antarctic Coastal Zone Y. Duan et al. https://doi.org/10.3390/w18161945
- An East Antarctic, sub-annual resolution water isotope record from the Mount Brown South Ice core V. Gkinis et al. https://doi.org/10.1038/s41597-024-03751-w
- Data-driven optimization of Antarctic shallow ice core site selection A. Eswaran et al. https://doi.org/10.1017/jog.2026.10218
- Evaluating the 20th Century Reanalysis Version 3 with synoptic typing and an East Antarctic ice core accumulation record M. Nilssen et al. https://doi.org/10.5194/cp-21-897-2025
- Interannual Variability and Trends in Extreme Precipitation in Dronning Maud Land, East Antarctica L. Yu et al. https://doi.org/10.3390/rs17020324
- Contextualising the barriers limiting integration of ice core derived hydroclimate records into eastern Australian water management C. Long et al. https://doi.org/10.1016/j.jemecp.2026.100010
- Highly sensitive tandem mass spectrometry detection for high resolution HILIC separation of biomass burning markers H. Stevens et al. https://doi.org/10.1016/j.chroma.2025.465878
15 citations as recorded by crossref.
- An annually resolved chronology for the Mount Brown South ice cores, East Antarctica T. Vance et al. https://doi.org/10.5194/cp-20-969-2024
- Trends in Extreme Precipitation Events across Antarctica C. Sui et al. https://doi.org/10.1007/s00376-025-4461-2
- Imprints of sea ice, wind patterns, and atmospheric systems on summer water isotope signatures at Hercules Névé, East Antarctica S. Kim et al. https://doi.org/10.5194/tc-19-5655-2025
- Cryptotephra in the East Antarctic Mount Brown South ice core M. Harlan et al. https://doi.org/10.5194/cp-22-1057-2026
- Atmospheric rivers in Antarctica J. Wille et al. https://doi.org/10.1038/s43017-024-00638-7
- High resolution continuous flow analysis impurity data from the Mount Brown South ice core, East Antarctica M. Harlan et al. https://doi.org/10.5194/essd-17-6255-2025
- Impacts of Eastern and Central Pacific El Niño‐Southern Oscillation on Antarctic Extreme Precipitation Occurrences L. Yu et al. https://doi.org/10.1002/joc.70258
- Climate influences on sea salt variability at Mount Brown South, East Antarctica H. Shea et al. https://doi.org/10.5194/cp-21-2009-2025
- Spatial Variations in Surface Snow Chemistry and Stable Isotope Composition Along Different Transects of the Antarctic Coastal Zone Y. Duan et al. https://doi.org/10.3390/w18161945
- An East Antarctic, sub-annual resolution water isotope record from the Mount Brown South Ice core V. Gkinis et al. https://doi.org/10.1038/s41597-024-03751-w
- Data-driven optimization of Antarctic shallow ice core site selection A. Eswaran et al. https://doi.org/10.1017/jog.2026.10218
- Evaluating the 20th Century Reanalysis Version 3 with synoptic typing and an East Antarctic ice core accumulation record M. Nilssen et al. https://doi.org/10.5194/cp-21-897-2025
- Interannual Variability and Trends in Extreme Precipitation in Dronning Maud Land, East Antarctica L. Yu et al. https://doi.org/10.3390/rs17020324
- Contextualising the barriers limiting integration of ice core derived hydroclimate records into eastern Australian water management C. Long et al. https://doi.org/10.1016/j.jemecp.2026.100010
- Highly sensitive tandem mass spectrometry detection for high resolution HILIC separation of biomass burning markers H. Stevens et al. https://doi.org/10.1016/j.chroma.2025.465878
Saved (final revised paper)
Latest update: 15 Nov 2026
Short summary
Ice core records are useful tools for reconstructing past climate. However, ice cores favour recording climate conditions at times when snowfall occurs. Large snowfall events in Antarctica are often associated with warmer-than-usual temperatures. We show that this results in a tendency for the Mount Brown South ice core record to preserve a temperature record biased to the climate conditions that exist during extreme events, rather than a temperature record that reflects the mean annual climate.
Ice core records are useful tools for reconstructing past climate. However, ice cores favour...
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