Post-depositional modification on seasonal-to-interannual timescales alters the deuterium-excess signals in summer snow layers in Greenland
Abstract m deep isotope (δ 18 O, δ D) profiles. The snow profiles were taken from May–August during the 2017–2019 summer seasons. An age–depth model was developed and applied to each profile, mitigating the impacts of stratigraphic noise on isotope signals. Significant changes in deuterium excess (d d d d d Δ d) can be explained by a combination of surface sublimation, forced ventilation of the near-surface snow down to 20–30 cm, and isotope-gradient-driven diffusion throughout the column. The interannual Δ d is also partly explained with isotope-gradient-driven diffusion, but other mechanisms are at work that leave a bias in the d d d parameter.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Post-depositional modification on seasonal-to-interannual timescales alters the deuterium-excess signals in summer snow layers in Greenland ; volume:18 ; number:8 ; year:2024 ; pages:3653-3683 ; extent:31
The Cryosphere ; 18, Heft 8 (2024), 3653-3683 (gesamt 31)
- Urheber
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Town, Michael S.
Steen-Larsen, Hans Christian
Wahl, Sonja
Faber, Anne-Katrine
Behrens, Melanie
Jones, Tyler R.
Sveinbjornsdottir, Arny
- DOI
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10.5194/tc-18-3653-2024
- URN
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urn:nbn:de:101:1-2408220417138.368031611536
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:45 MESZ
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Beteiligte
- Town, Michael S.
- Steen-Larsen, Hans Christian
- Wahl, Sonja
- Faber, Anne-Katrine
- Behrens, Melanie
- Jones, Tyler R.
- Sveinbjornsdottir, Arny
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