Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 19, issue 4
Articles | Volume 19, issue 4
https://doi.org/10.5194/hess-19-1943-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/hess-19-1943-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 19, issue 4
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, M. Durand, H. C. Jung, and D. Alsdorf

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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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