The Cryosphere
The Cryosphere
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Articles | Volume 17, issue 7
Articles | Volume 17, issue 7
https://doi.org/10.5194/tc-17-3063-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/tc-17-3063-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 7
Research article
 | 
26 Jul 2023
Research article |  | 26 Jul 2023

Isotopic diffusion in ice enhanced by vein-water flow

Felix S. L. Ng

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Short summary
The stable isotopes of oxygen and hydrogen in ice cores are routinely analysed for the climate signals which they carry. It has long been known that the system of water veins in ice facilitates isotopic diffusion. Here, mathematical modelling shows that water flow in the veins strongly accelerates the diffusion and the decay of climate signals. The process hampers methods using the variations in signal decay with depth to reconstruct past climatic temperature.
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Special issue
Ice core science at the three poles (CP/TC inter-journal SI)