caa a22 4500 445893419 CHVBK 20180317145623.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10750-011-0760-y doi (NATIONALLICENCE)springer-10.1007/s10750-011-0760-y Seabed dynamics in a lage coastal embayment: 180years of morphological change in the outer Thames estuary [Elektronische Daten] [Helene Burningham, Jon French] This article analyses the morphological history of the outer Thames seabed, covering over 3,000km2 from Aldeburgh (Suffolk), to Southend-on-Sea (Essex) and Margate (Kent). The region has been depicted on bathymetric charts since the sixteenth century, and has been formally charted since the eighteenth century. Charts published since the early 1800s incorporate sufficient grid reference or ground control detail for georectification onto a common coordinate system (British National Grid). The morphological history of the outer seabed was thus reconstructed through the digitisation and interpolation of soundings onto a regular grid (3D surface). The evolution of seabed morphology was examined using transects, bathymetric change maps and spatial statistics. The results show considerable spatial variability in seabed behaviour. Within the central Thames, banks have experienced significant depth changes can be associated with lateral shifts in individual banks. Some of the outer banks in this region exhibit progressive elongation. Shifts in bank position across the Suffolk shoreface appear to be more subtle, and there is evidence here of both onshore and offshore migration. There is no clear evidence of any regionally coherent response to large-scale historical forcing such as sea-level rise. Springer Science+Business Media B.V., 2011 Estuary nationallicence Sandbanks nationallicence Tidal channels nationallicence Shelf ridges nationallicence Morphodynamics nationallicence Geomorphology nationallicence Bathymetry nationallicence Hydrographic survey nationallicence Marine habitats nationallicence Burningham Helene Coastal & Estuarine Research Unit, Department of Geography, University College London, London, UK aut French Jon Coastal & Estuarine Research Unit, Department of Geography, University College London, London, UK aut Hydrobiologia Springer Netherlands 672/1(2011-09-01), 105-119 0018-8158 672:1<105 2011 672 10750 https://doi.org/10.1007/s10750-011-0760-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0760-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Burningham Helene Coastal & Estuarine Research Unit, Department of Geography, University College London, London, UK aut NATIONALLICENCE 700 1- French Jon Coastal & Estuarine Research Unit, Department of Geography, University College London, London, UK aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 672/1(2011-09-01), 105-119 0018-8158 672:1<105 2011 672 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer