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  Monitoring River Discharge and Water Height Changes in German Rivers, Lakes, Reservoirs by using Fully-Focused and Unfocused SAR Altimeter Products

Uyanik, H., Chen, J., Fenoglio, L., Kusche, J. (2023): Monitoring River Discharge and Water Height Changes in German Rivers, Lakes, Reservoirs by using Fully-Focused and Unfocused SAR Altimeter Products, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4626

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021035 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021035_1
Genre: Conference Paper

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 Creators:
Uyanik, Hakan1, Author
Chen, Jiaming1, Author
Fenoglio, Luciana1, Author
Kusche, Jurgen1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: Surface water level is an important indicator of the state of the environment, and monitoring its change is critical for understanding the impacts of climate change and human activity on rivers, lakes and reservoirs.The study focuses on the impact of new generation altimetry observations on the accuracy of water level measurements. It presents a cross-validation analysis of unfocused SAR altimetry(UF-SAR) and fully focused SAR(FF-SAR) products.Although UF-SAR processing indicates a significant improvement in the accuracy of the measurements compared to conventional altimetry (CA), FF-SAR processing offers an improved along track resolution until 0.5 m. The comparison is carried out using statistical techniques to evaluate the accuracy and precision of the measurements.The study also simulates SWOT real data in 1-day and in 21-day repeat and discusses the detection of small scale water level change over the same three types of targets In conclusion, the study investigates the use of UF-SAR and FF-SAR altimetry for monitoring river discharge and water level height changes in German rivers, lakes and reservoirs.

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Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-4626
 Degree: -

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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
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -