Coastal evolution and sediment budget at the mouth of the Columbia River, USA
The coastal morphology of the Mouth of the Columbia River (MCR) has changed dramatically over the past century. Since the construction of jetties in 1914 and 1917, the inlet deepened and stabilized, the outer ebb delta migrated northward and offshore several kilometers, and the adjacent shorelines to the north and south prograded several hundreds of meters. Recently, high rates of erosion along these adjacent shorelines affecting parklands have raised questions about the cause of the erosion. The purpose of the sediment budget analysis presented here is to address these questions by quantitatively examining the links between the morphology change of the shoreline and the ebb delta and historical changes in local and regional sediment supply.
Citation Information
Publication Year | 2001 |
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Title | Coastal evolution and sediment budget at the mouth of the Columbia River, USA |
DOI | 10.1061/40566(260)84 |
Authors | Guy Gelfenbaum, Maarten C. Buijsman, Christopher R. Sherwood, Hans R. Moritz, Ann E. Gibbs |
Publication Type | Conference Paper |
Publication Subtype | Conference Paper |
Index ID | 70243318 |
Record Source | USGS Publications Warehouse |
USGS Organization | Pacific Coastal and Marine Science Center; Woods Hole Coastal and Marine Science Center |