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Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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We use a virtual mission analysis on a ca. 260km reach of the central Amazon River to assess the hydraulic implications of potential measurement errors in swath-altimetry imagery from the forthcoming Surface Water and Ocean Topography (SWOT) satellite mission. We estimated water surface slope from imagery of water heights and then derived channel discharge. Errors in estimated discharge were lowest when using longer reach lengths and channel cross-sectional averaging to estimate water slopes.
Articles | Volume 19, issue 4
Hydrol. Earth Syst. Sci., 19, 1943–1959, 2015
https://doi.org/10.5194/hess-19-1943-2015
Hydrol. Earth Syst. Sci., 19, 1943–1959, 2015
https://doi.org/10.5194/hess-19-1943-2015

Research article 22 Apr 2015

Research article | 22 Apr 2015

Swath-altimetry measurements of the main stem Amazon River: measurement errors and hydraulic implications

M. D. Wilson et al.

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Short summary
We use a virtual mission analysis on a ca. 260km reach of the central Amazon River to assess the hydraulic implications of potential measurement errors in swath-altimetry imagery from the forthcoming Surface Water and Ocean Topography (SWOT) satellite mission. We estimated water surface slope from imagery of water heights and then derived channel discharge. Errors in estimated discharge were lowest when using longer reach lengths and channel cross-sectional averaging to estimate water slopes.
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