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  The Influence of Snow on Antarctic Sea Ice

Dadic, R., Martin, J., Pirazzini, R., Schneebeli, M., Anderson, B., Cheng, B., Heil, P., Vargo, L., Jaggi, M., Leonard, G., Light, B., Rack, W., Smith, I., Wigmore, O., Webster, M. (2023): The Influence of Snow on Antarctic Sea Ice, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4036

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021476 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021476_1
Genre: Konferenzbeitrag

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Dadic, Ruzica1, Autor
Martin, Julia1, Autor
Pirazzini, Roberta1, Autor
Schneebeli, Martin1, Autor
Anderson, Brian1, Autor
Cheng, Bin1, Autor
Heil, Petra1, Autor
Vargo, Lauren1, Autor
Jaggi, Matthias1, Autor
Leonard, Greg1, Autor
Light, Bonnie1, Autor
Rack, Wolfgang1, Autor
Smith, Inga1, Autor
Wigmore, Oliver1, Autor
Webster, Melinda1, Autor
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Zusammenfassung: Snow cover affects the variability of the physical properties of sea ice. The snow’s unique thermal and optical properties govern the mass and energy fluxes in the sea ice system. They are important for sea ice evolution, energy exchanges between the ocean and the atmosphere, and light availability for ecosystems below the sea ice. Furthermore, snow significantly impacts remote sensing retrievals, especially for sea ice thickness. Yet, data on the physical properties of snow and its effects on sea ice are extremely limited, especially in Antarctica. This leads to large uncertainties in the coupling of climate feedback and results in significant biases in model representations of the sea ice cover. During our field campaign from October-December 2022 in McMurdo Sound, we quantitatively investigated the physical properties of snow on Antarctic sea ice, following the same protocols used during the MOSAiC expedition. The season’s unique sea ice conditions provided the ideal laboratory to study a range of snow conditions and to differentiate between sea ice and snow drivers for the atmosphere-sea ice-ocean system. Our set of snow measurements on sea ice, unprecedented in Antarctica, includes ground snow/ice measurements, automatic weather and radiation stations, and drone-based measurements. These extensive measurements made it possible to capture the physical properties of snow and their spatial variability and simultaneously measure the different components of the energy balance at varying spatial scales. We will use this dataset to improve our understanding of snow's role in the Antarctic sea ice system.

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Sprache(n): eng - Englisch
 Datum: 2023-07-112023-07-11
 Publikationsstatus: Final veröffentlicht
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
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 Identifikatoren: DOI: 10.57757/IUGG23-4036
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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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