Long-Term Variations of Water Runoff and Suspended Sediment Yield in the Parana and Uruguay Rivers

The hydroclimatic conditions of water runoff formation and the hydrography of Parana and Uruguay river basins in the South America are considered. A survey of the recent studies of the hydrological regime of these rivers is given. Observation data are used to evaluate the long-term average values of...

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Bibliographic Details
Published in:Water resources 2018-11, Vol.45 (6), p.846-860
Main Authors: Isupova, M. V., Mikhailov, V. N.
Format: Article
Language:English
Subjects:
Aquatic Pollution
Drainage basins
Earth and Environmental Science
Earth Sciences
Estuaries
Estuarine dynamics
Hydrogeology
Hydrography
Hydrologic regime
Hydrology
Hydrology/Water Resources
Long-term changes
River basins
River discharge
River flow
River runoff
Rivers
Runoff
Runoff variations
Sediment
Sediment yield
Sediments
Surveying
Suspended sediments
Variation
Waste Water Technology
Water balance
Water Management
Water Pollution Control
Water Resources and the Regime of Water Bodies
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Summary:The hydroclimatic conditions of water runoff formation and the hydrography of Parana and Uruguay river basins in the South America are considered. A survey of the recent studies of the hydrological regime of these rivers is given. Observation data are used to evaluate the long-term average values of water runoff and suspended sediment yield in the Parana and Uruguay and their variations along the rivers. Characteristics of many-year runoff variations in the rivers were evaluated. A climate-induced increase was identified in the Parana and Uruguay water runoff, and the corresponding present-day trends in river runoff variations in both rivers were evaluated. The total water runoff and suspended sediment yield of the Parana and Uruguay into La Plata estuary were calculated. Water balance of the drainage basin of La Plata estuary was characterized.
ISSN:0097-8078
1608-344X
DOI:10.1134/S0097807818060088