Articles | Volume 12, issue 7
https://doi.org/10.5194/cp-12-1565-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-12-1565-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
22 Jul 2016
Research article |
| 22 Jul 2016
Regional climate signal vs. local noise: a two-dimensional view of water isotopes in Antarctic firn at Kohnen Station, Dronning Maud Land
Alfred Wegener Institute Helmholtz Centre for Polar and
Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
Institute of Physics and Astronomy, University of Potsdam,
Karl-Liebknecht-Str. 24/25, 14476 Potsdam, Germany
Sepp Kipfstuhl
Alfred Wegener Institute Helmholtz Centre for Polar and
Marine Research, Am Alten Hafen 26, 27568 Bremerhaven, Germany
Johannes Freitag
Alfred Wegener Institute Helmholtz Centre for Polar and
Marine Research, Am Alten Hafen 26, 27568 Bremerhaven, Germany
Hanno Meyer
Alfred Wegener Institute Helmholtz Centre for Polar and
Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
Thomas Laepple
Alfred Wegener Institute Helmholtz Centre for Polar and
Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
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Saved (preprint)
Latest update: 21 Jan 2025
Short summary
Ice-core oxygen isotope ratios are a key climate archive to infer past temperatures, an interpretation however complicated by non-climatic noise. Based on 50 m firn trenches, we present for the first time a two-dimensional view (vertical × horizontal) of how oxygen isotopes are stored in Antarctic firn. A statistical noise model allows inferences for the validity of ice coring efforts to reconstruct past temperatures, highlighting the need of replicate cores for Holocene climate reconstructions.
Ice-core oxygen isotope ratios are a key climate archive to infer past temperatures, an...
