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- W4385810280 abstract "ABSTRACTAccurate predictions of water surface elevation (WSE) in rivers at high spatial and temporal resolution are important for flood/drought risk assessment and flood/drought forecasting and management. WSE in a river is controlled by three main factors: discharge, riverbed geometry, and hydraulic roughness. In remote and poorly instrumented rivers, discharge and riverbed geometry are highly uncertain and WSE is therefore hard to predict. ICESat-2 laser altimetry provides accurate elevation transects across the river at very high spatial resolution (70 cm along track). This paper demonstrates how ICESat-2 elevation transects can be used to parameterize a basin-scale hydraulic model of a continental-scale river. The workflow is demonstrated for the transboundary Amur River in North-East Asia. Simulated WSE is subsequently validated against a large dataset of in situ and satellite altimetry observations, and we demonstrate that the model can reproduce available WSE observations throughout the basin with an accuracy of 1–2 m.KEYWORDS: ICESat-2satellite altimetryhydrodynamic modellingAmur Riverriverbed geometry Editor A. Castellarin; Associate Editor A. DomeneghettiEditor A. Castellarin; Associate Editor A. DomeneghettiDisclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis work has been partly funded by the Hydrocoastal project (European Space Agency) and supported by Innovation Fund Denmark through the ChinaWaterSense project [File number: Innovationsfonden 8087-00002B] and the National Key Research and Development Program of China project [2018YFE0106500]; European Space Agency." @default.
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- W4385810280 date "2023-08-14" @default.
- W4385810280 modified "2023-10-02" @default.
- W4385810280 title "A hydraulic model of the Amur River informed by ICESat-2 elevation" @default.
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- W4385810280 doi "https://doi.org/10.1080/02626667.2023.2245811" @default.
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