2010
DOI: 10.1007/s10236-010-0271-9
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Spatial heterogeneity in estuarine mud dynamics

Abstract: The fate of mud in an estuary over an entire year was unravelled using complementary, independent, spatially explicit techniques. Sequential ERS-2 SAR and Envisat MERIS-FR data were used to derive synoptic changes in intertidal bottom mud and suspended particulate matter (SPM) in the top of the water column, respectively. These satellite data were combined with in situ measurements and with a high resolution three-dimensional cohesive sediment model, simulating mud transport, resuspension, settling and deposit… Show more

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Cited by 36 publications
(27 citation statements)
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References 74 publications
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“…The accreted sediment was finer than the sediment originally present in the bed. Abrupt transitions in grain size can occur by changes in morphological evolution during storms (Yang et al, ) and seasonal variations (Van der Wal et al, ; Yang et al, ), but we find the changes induced by disposal persisted. Sediment disposals in channels can be a direct cause of both gradual and abrupt changes in grain size on intertidal areas.…”
Section: Discussioncontrasting
confidence: 57%
“…The accreted sediment was finer than the sediment originally present in the bed. Abrupt transitions in grain size can occur by changes in morphological evolution during storms (Yang et al, ) and seasonal variations (Van der Wal et al, ; Yang et al, ), but we find the changes induced by disposal persisted. Sediment disposals in channels can be a direct cause of both gradual and abrupt changes in grain size on intertidal areas.…”
Section: Discussioncontrasting
confidence: 57%
“…Effects of waves are only expected to be significant in shallow areas with a long fetch (Callaghan et al, 2010;van Kessel et al, 2011). Shoals tend to be sandy, whereas towards the fringes of the estuary mean current velocities decrease and the mud content increases (Oenema et al, 1988;van der Wal et al, 2010;van Kessel et al, 2011). Intertidal areas on shoals and at the fringe of the estuary that have limited inundation frequencies are covered by salt marsh vegetation.…”
Section: Field Sitesmentioning
confidence: 95%
“…Under these conditions, more marine fine-grained sediments are entering the Westerschelde estuary. Indeed, the Westerschelde cohesive sediments show a very strong marine signature (>80%) (Van Alphen 1990; Verlaan and Spanhoff 2000) suggesting that the estuary serves as a buffer of marine fine-grained matter (van der Wal et al 2010). Part of these fine-grained sediments is permanently deposited in inter-tidal areas (Temmerman et al 2003).…”
Section: Conceptual Spm Transport Systemmentioning
confidence: 98%