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  A regime shift in surface temperature over the East Antarctic Plateau in the twentieth century

Kurita, N., Kameda, T., Motoyama, H., Naohiko, H., Sugiura, K., Lazzara, M., Mikolajczyk, D., Welhouse, L., Keller, L., Weidner, G. (2023): A regime shift in surface temperature over the East Antarctic Plateau in the twentieth century, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-0028

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017075 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017075_1
Genre: Konferenzbeitrag

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 Urheber:
Kurita, Naoyuki1, Autor
Kameda, Takao1, Autor
Motoyama, Hideaki1, Autor
Naohiko, Hirasawa1, Autor
Sugiura, Konosuke1, Autor
Lazzara, Matthew1, Autor
Mikolajczyk, David1, Autor
Welhouse, Lee1, Autor
Keller, Linda1, Autor
Weidner, George1, 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: In contrast to the Antarctic coastal region, there are only a few staffed weather stations in the remote plateau region. In particular, inland Dronning Maud Land (DML) on East Antarctic Plateau is one of the regions in which weather observations are the shortest and sparsest in the world. Several automatic weather stations (AWSs) have been installed since 1990s. However, owing to their remoteness and harsh environment, the missing observations occur frequently and these data gaps hinder the analysis of temperature variability and changes in the region. Here, we present complete 40-years long temperature records for Dome Fuji, Relay Station, and Mizuho in the inland DLM region, in which observations have been corrected, and gaps have been filled using the state-of-the-art global atmospheric reanalysis data. The records show the similar interannual variability among each station. A stacked annual temperature reveals a statistically significant warming trend since the late 1990s. The most rapid warming is observed during the austral spring. The springtime warming resulted from an increase of warm northerly winds associated with the enhanced cyclonic anomaly in the Weddell Sea. The circulation changes in the Weddell Sea is closely linked to the tropical-polar teleconnection. The impact of changes in tropical sea surface temperatures seem to extend not only to the Antarctic Peninsula and West Antarctica, but also to the East Antarctic Plateau.

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Sprache(n): eng - Englisch
 Datum: 2023
 Publikationsstatus: Final veröffentlicht
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
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 Identifikatoren: DOI: 10.57757/IUGG23-0028
 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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