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  Detection and attribution of intra-annual mass component of sea-level variations along the Norwegian coast

Mangini, F., Bonaduce, A., Chafik, L., Raj, R., Bertino, L. (2023): Detection and attribution of intra-annual mass component of sea-level variations along the Norwegian coast, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3862

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020683 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020683_1
Genre: Conference Paper

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 Creators:
Mangini, Fabio1, Author
Bonaduce, Antonio1, Author
Chafik, Leon1, Author
Raj, Roshin1, Author
Bertino, Laurent1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: Reliable sea-level observations in coastal regions are needed to assess the impact of sea level on coastal communities and ecosystems. This paper evaluates the ability of in-situ and remote sensing instruments to monitor and help explain the mass component of sea level along the coast of Norway. The general agreement between three different GRACE mascon solutions and a combination of coastal satellite altimetry and hydrography gives us confidence to explore the mass component of sea level in coastal areas on intra-annual timescales. At first, the estimates reveal a large spatial-scale coherence of the sea-level mass component on the shelf, which agrees with Ekman theory. Then, they suggest a link between the mass component of sea level and the along-slope winds integrated along the eastern boundary of the North Atlantic, which agrees with the theory of poleward propagating coastal trapped waves. Our results give us confidence in the sea-level mass component from GRACE, satellite altimetry and the hydrographic stations over the Norwegian shelf. Moreover, they indicate that GRACE can be used to monitor and understand the intra-annual variability of the mass component of sea level in the coastal ocean, especially where in-situ measurements are sparse or absent.

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Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-3862
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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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