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Portland State University

2007

Coastal ecology -- Pacific Coast (North America)

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Full-Text Articles in Engineering

Analyses Of Internal Solitary Waves Generated At The Columbia River Plume Front Using Sar Imagery, Jiayi Pan, David A. Jay Jul 2007

Analyses Of Internal Solitary Waves Generated At The Columbia River Plume Front Using Sar Imagery, Jiayi Pan, David A. Jay

Civil and Environmental Engineering Faculty Publications and Presentations

Internal solitons generated at the Columbia River plume front during ebb tide are displayed on a synthetic aperture radar (SAR) image taken on 26 July 2004 at 14:24:22 UTC. Scale analyses suggest that these internal solitons belong to the finite-depth category. A theoretical model, relating the radar backscatter cross section to dynamic parameters of internal solitons in the continuous stratification, is developed. Using the model and background stratification data collected by the River Influences on Shelf Ecosystem (RISE) project in July 2004, we extract the soliton dynamic parameters of the half-width, amplitude, phase speed, and average energy flux per crest …