High Resolution Morphodynamics and Sedimentary Evolution of by Duncan M. FitzGerald, Jasper Knight

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By Duncan M. FitzGerald, Jasper Knight

This booklet makes a speciality of using high-resolution geophysical options, box observations and modeling to enquire the morphodynamics of estuaries on either glaciated and non-glaciated coasts and on diverse time scales. Papers during this booklet supply a brand new method of nearshore and estuary reviews, with an emphasis on multidisciplinary thoughts and knowledge integration. result of those experiences have vital implications for estuary source administration and coastline balance. This publication can be of curiosity to sedimentologists, coastal and Quaternary geologists, environmental scientists, and coastal managers.

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High Resolution Morphodynamics and Sedimentary Evolution of Estuaries (Coastal Systems and Continental Margins)

This ebook makes a speciality of using high-resolution geophysical concepts, box observations and modeling to enquire the morphodynamics of estuaries on either glaciated and non-glaciated coasts and on diversified time scales. Papers during this booklet provide a brand new method of nearshore and estuary reports, with an emphasis on multidisciplinary innovations and information integration.

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Training areas may be difficult to define with confidence if ground truth information is sparse. In contrast, the clustering algorithm of the unsupervised classification requires the number of classes to be identified and the interpreter also needs to decide, which the relevant classes are and what their physical meaning is. If the signature-class relation for certain river bottom types is available beforehand, this procedure could be fully automated. Such automation would require that the survey system setup as well as the environmental and bottom conditions are the same as within the reference area.

The areas were covered in north-south as well as in east-west direction to provide insonification from orthogonal angles. The grid spacing was 95 m for the N-S lines and 185 m for the E-W lines to ensure significant overlap of the sidescan swath. 3. Seabed classification of Hudson River estuary 4. 37 DERIVING PARAMETER FOR CLASSIFICATION To test the classification approach we concentrate on the Tappan Zee area, which consists of extended subtidal flats (1-4 m deep) and a <15 m deep main channel (Fig.

7). The distinctive layered stratigraphy of SB-IVi, found especially between –6 m and –8 m OD, suggests alternating muddy and sandy layers (few tens of cm thick). Based on observed clinoforms, the calculated maximum geometry of individual channels is 3 m deep and 8 m in width, but overall channel sequences are up to 200 m across. This strongly suggests that channels were formed and infilled by a meandering proto-River Bann in an open estuarine Chapter 2 26 or intertidal environment. This interpretation is supported by sedimentary evidence at the Barmouth (Carter and Wilson, 1990) which shows freshwater marls and peats at –6 m OD.

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