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  Seasonal characteristics of the Antarctic inland mass balance as indicated by the AWS onboard snow depth sensor

Hirasawa, N., Saito, K., Motoyama, H., Sugiura, K., Kurita, N. (2023): Seasonal characteristics of the Antarctic inland mass balance as indicated by the AWS onboard snow depth sensor, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4088

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021528 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021528_1
Genre: Conference Paper

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Hirasawa, Naohiko1, Author
Saito, Keisuke1, Author
Motoyama, Hideaki1, Author
Sugiura, Konosuke1, Author
Kurita, Naoyuki1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: The Japanese Antarctic Research Expedition (JARE) has been conducting snow stakes observation between Syowa Station and Dome Fuji Station for more than 30 years. This observation has revealed interannual variations in the annual depth of accumulation. In order to clarify the cause of this interannual variation from field observation, it is necessary to know the date and time of the snow surface change and its magnitude. Therefore, we have installed four AWSs equipped with snow depth sensors from 2016 to 2019. This presentation shows the main results as follows: 1) The temporal changes of surface height include stepwise fluctuations and pulse-like fluctuations, and the rise in surface height is mainly caused by stepwise rises, rather than pulse-like fluctuations. The stepwise fluctuations are likely associated with synoptic-scale disturbances. The pulse-like fluctuations are concentrated more in cold season than warm season. 2) A slow decline in surface height was observed during the warm season. 3) The stepwise fluctuations in the inland plateau areas are concentrated more in warm season than cold season.

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Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
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 Identifiers: DOI: 10.57757/IUGG23-4088
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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
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Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
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