volume 110, issue F4, Pn/a-n/a 2005
DOI: 10.1029/2004jf000176
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Abstract: [1] The morphology of dunes in rivers and estuaries often lags behind changes in river discharge and neap-spring tides. This study extends previous research by examining the response of large subtidal dunes in the Fraser Estuary, Canada, to changing flow conditions over a semidiurnal tidal cycle. An acoustic Doppler current profiler (ADCP) is used to measure three-dimensional velocity profiles and estimate sediment transport and a digital echosounder to measure bed profiles and dune characteristics. Mean flow…

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