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  Exploring the use of high resolution altimetry in coastal zone and estuaries

Luciana, F., Hakan, U., Jiaming, C., Jürgen, K. (2023): Exploring the use of high resolution altimetry in coastal zone and estuaries, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4951

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021350 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021350_1
Genre: Conference Paper

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 Creators:
Luciana, Fenoglio1, Author
Hakan, Uyanik1, Author
Jiaming, Chen1, Author
Jürgen, Kusche1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: Coastal-to-land sites are mostly affected by climate changes and are at multi-risks due to coastline retreat, flooding storms and river floods. New altimeter processing and new missions open new possibilities to observe fine-scale spatial changes in this region. Region of analysis are the German coasts and the nearby seas and estuaries, with the Danish Straits and the coastal and cyclonic circulation in the Baltic Sea under the SWOT cal/val. We consider the Fully-Focus (FF-SAR) processing near coast. Results depend on the retracking method and land contamination is affecting FF-SAR. The SAMOSA+ retracker gives the best results for both FFSAR and unfocused SAR (USAR). The ability of the model to reproduce the high variability at fine spatial-scale is then investigated using regional ocean models. Ocean simulation sea level is compared to nadir-altimetry along the satellite ground tracks. While the coverage of nadir-altimeter is limited by the number of ground-tracks, SWOT provides a uniform coverage and is not affected by land contamination. In the second part of this study we investigate using simulated data the signal expected from the SWOT mission. Due to the differences between along-track and swath-altimetry, new methods to derive accuracy and precision of the measurements and relevant ocean parameters are considered.

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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/IUGG23-4951
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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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