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|Created:||May 04, 2019 at 10:27 a.m.|
|Last updated:|| Aug 21, 2019 at 8:17 p.m.
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Large river hydrodynamics studies inform global and regional issues pertaining to biogeochemical cycling, ecology, water availability, and flood risk. Such studies rely increasingly on satellite measurements, but these are limited by resolution, coverage and uncertainty, and their inability to directly measure bathymetry or discharge. We obtain new in-situ data covering 650 km of the Congo’s main stem, including elusive bathymetry and discharge measurements that complement space-borne datasets. Our key findings relate to our water surface elevation measurements which show that spatial coverage of existing satellite altimetry for deriving river water surface profiles may be adequate through the globally important Cuvette Centrale, but is not at its outlet where our field data reveals significant spatial variability in water surface slope. The findings have implications for altimetry-based hydrodynamics studies of other large rivers, such as those that involve estimating discharge or modelling multichannel river hydraulics.
|This resource is referenced by||Carr, A. B., Trigg, M. A., Tshimanga, R. M., Borman, D. J., & Smith, M. W. (2019). Greater water surface variability revealed by new Congo River field data: Implications for satellite altimetry measurements of large rivers. Geophysical Research Letters, 46. https://doi.org/10.1029/2019GL083720|
This resource was created using funding from the following sources:
|Agency Name||Award Title||Award Number|
|The Royal Society, DFID||Royal Society-DFID Africa Capacity Building Initiative||AQ150005|