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  Modelling and measurement of carbon emissions under Arctic snow

Rutter, N., Dutch, V., Mann, P., Wake, L., Derksen, C., Walker, B., Hould Gosselin, G., Sonnentag, O., Roy, A., Mavrovic, A., Essery, R., Voigt, C., Marsh, P., Boike, J. (2023): Modelling and measurement of carbon emissions under Arctic snow, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-2475

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018277 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018277_2
Genre: Konferenzbeitrag

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 Urheber:
Rutter, Nick1, Autor
Dutch, Victoria1, Autor
Mann, Paul1, Autor
Wake, Leanne1, Autor
Derksen, Chris1, Autor
Walker, Branden1, Autor
Hould Gosselin, Gabriel1, Autor
Sonnentag, Oliver1, Autor
Roy, Alexandre1, Autor
Mavrovic, Alex1, Autor
Essery, Richard1, Autor
Voigt, Carolina1, Autor
Marsh, Phillip1, Autor
Boike, Julia1, Autor
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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Schlagwörter: -
 Zusammenfassung: Arctic carbon dioxide emissions during the winter months are frequently omitted from global carbon budgets, due to prior assumptions that their contribution is largely insignificant compared to other sources and seasons. This paradigm has recently been challenged, amid a growing awareness of the impact snow-ecosystem interactions have on respiration from high-latitude soils and overall carbon budgets. Through field measurements at Trail Valley Creek, NWT, Canada, and simulations using the Community Land Model 5.0, here we: consider how the representation of snow thermal conductivity in a Terrestrial Biosphere Model impacts simulated near-surface soil temperatures and net ecosystem exchange, report on new low-cost in-situ measurement techniques that aim to quantify carbon dioxide concentrations and fluxes within Arctic snowpacks. We anticipate new measurement techniques will help evaluate rates of production of carbon dioxide from frozen soils during winter months and address discrepancies between observed and simulated carbon dioxide emissions. Increased confidence in future simulations is important in a region that is highly characteristic of the high latitude critical zone, susceptible to permafrost thaw, and is warming two to three times as fast as the global average since the late twentieth century.

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Sprache(n): eng - Englisch
 Datum: 2023
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.57757/IUGG23-2475
 Art des Abschluß: -

Veranstaltung

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Veranstaltungsort: Berlin
Start-/Enddatum: 2023-07-11 - 2023-07-20

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Potsdam : GFZ German Research Centre for Geosciences
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