2004•Journal of Sediment ResearchRequires access

Calculation of the amount of siltation and erosion in the South and North channel in the Changjiang estuary and its evolution

Hualin Wu

Abstract

The digital elevation model of the South and North channel in the Changjiang estuany is established through analyzing lots of Charts of Changjiang estuany from 1842 to 1997 by using the Kriging gridding method and the transfer relations among different datum planes.Then,the relation between its channel-fill volume and the evolution of its bifurcation was analyzed.The evolution process of the South and North Channel was summarized.

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Key concepts: Siltation, Channel (broadcasting), Geology, Estuary, Erosion, Geodetic datum, Digital elevation model, Hydrology (agriculture)