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Suspended-sediment and fresh-water discharges in the Ob and Yenisey rivers, 1960-1988

International Journal of Earth Sciences

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Abstract

Of the world's great rivers, the Ob and Yenisey rank among the largest suppliers of fresh water and among the smallest suppliers of suspended sediment to the coastal ocean. Sediment in the middle reaches of the rivers is mobilized from bordering terraces and exchanged between channels and flood plains. Sediment in the lower reaches of these great rivers is deposited and stored (permanently, on a millennial time scale) in flood plains. Sediment discharges, already small under natural conditions, are diminished further by large manmade reservoirs that trap significant proportions of the moving solids. The long winter freeze and sudden spring breakup impose a peakedness in seasonal water runoff and sediment discharge that contrasts markedly with that in rivers of the tropics and more temperate climates. Very little sediment from the Ob and Yenisey rivers is being transported to the open waters of the Arctic Ocean under present conditions.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Suspended-sediment and fresh-water discharges in the Ob and Yenisey rivers, 1960-1988
Series title:
International Journal of Earth Sciences
Volume
89
Issue:
3
Year Published:
2000
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
International Journal of Earth Sciences
First page:
465
Last page:
469
Number of Pages:
5