Morphological evolution of the Venice lagoon: Evidence from the past and trend for the future
Identifieur interne : 000560 ( Main/Exploration ); précédent : 000559; suivant : 000561Morphological evolution of the Venice lagoon: Evidence from the past and trend for the future
Auteurs : Luca Carniello [Italie] ; Andrea Defina [Italie] ; Luigi D'Alpaos [Italie]Source :
- Journal of Geophysical Research: Earth Surface [ 0148-0227 ] ; 2009-12.
English descriptors
- Teeft :
- Absolute elevation, Amsl, Available bathymetric data, Available bathymetries, Average side, Bathymetric, Bathymetric data, Bathymetry, Bimodal distribution, Black lines, Bora wind, Bottom elevation, Bottom elevation change, Bottom elevation density curves, Bottom elevation density functions, Bottom elevations, Bottom evolution, Bottom shear stress, Brenta river, Cambridge univ, Carniello, Channel network, Climate change, Conceptual model, Conceptual stability model, Consorzio venezia, Critical shear stress, Deeper bottom elevations, Defina, Deposition, Deposition rate, Elevation, Equilibrium depth, Erosion, Erosion phase, Erosion process, Erosion rate, Erosive, Erosive conditions, Erosive trend, Estuarine, Estuarine stud, Evolution figure, Evolution model, Fagherazzi, First approximation, Flat erosion, Flats, Frequency area distribution, Frequency area distributions, Geophys, Gray lines, High erosion rates, Ingegneria idraulica, Initial phase, Initial salt marsh deterioration phase, Intergovernmental panel, Lagoon, Lagoon morphology, Landward boundary, Last century, Leonardo harbor, Level rise, Lido inlet, Linear extrapolation, Local rate, Magistrato alle acque, Malamocco inlets, Marani, Marsh, Meteorological condition, Morphodynamic equilibrium, Morphological evolution, Northern lagoon, Northern part, Organic production, Organic sediment production, Piano degli interventi, Point model, Punta della salute, Recupero morfologico, Reliable future configuration, Salt marsh, Salt marsh areas, Salt marsh deterioration, Salt marsh deterioration process, Salt marsh elevation, Salt marsh extent, Salt marshes, Sediment, Sediment dynamics, Sediment erosion, Sediment loss, Sediment resuspension, Sediment supply, Separate analysis, Sette morti, Shallow microtidal basins, Shear stress, Shear stresses, Slower erosive trend, Stability model, Stable equilibrium, Studio attivita, Subtidal flats, Technical report, Temporal evolution, Temporary equilibrium condition, Tidal, Tidal basin, Tidal channels, Tidal currents, Tidal flats, Time evolution, Triangular grid, Unchanneled portion, Vegetation dynamics, Venezia, Venice, Venice lagoon, Venice water authority, Wind speed, Wind waves.
Abstract
During the last century, the Venice lagoon, Italy, has been experiencing a general degradation consisting of the deepening of tidal flats and the reduction of salt marsh areas. A conceptual model describing the long‐term evolution of such lagoons has recently been proposed. According to the model, the long‐term degradation consists of two steps: an initial salt marsh deterioration phase followed by a tidal flat erosion phase. In this work we test the long‐term evolution model through the analysis of four different bathymetries of the Venice lagoon during the last century (1901, 1932, 1970, and 2003). The result of the analysis confirms that the recent past morphological evolution of the Venice lagoon has actually followed the proposed model and highlights a slower erosive trend characterizing the northern part of the lagoon compared to the moderately rapid erosion affecting the central southern part. This result enables us to infer the likely future evolution of the Venice lagoon as long as the present forcing conditions are maintained.
Url:
DOI: 10.1029/2008JF001157
Affiliations:
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Res.</title><idno type="ISSN">0148-0227</idno><idno type="eISSN">2156-2202</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2009-12">2009-12</date><biblScope unit="volume">114</biblScope><biblScope unit="issue">F4</biblScope><biblScope unit="page" from="/">n/a</biblScope><biblScope unit="page" to="/">n/a</biblScope></imprint><idno type="ISSN">0148-0227</idno></series><idno type="istex">ED3C5A720D513648C97766F64C65C195ECAC241F</idno><idno type="DOI">10.1029/2008JF001157</idno><idno type="ArticleID">2008JF001157</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0148-0227</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Absolute elevation</term><term>Amsl</term><term>Available bathymetric data</term><term>Available bathymetries</term><term>Average side</term><term>Bathymetric</term><term>Bathymetric data</term><term>Bathymetry</term><term>Bimodal distribution</term><term>Black lines</term><term>Bora wind</term><term>Bottom elevation</term><term>Bottom elevation change</term><term>Bottom elevation density curves</term><term>Bottom elevation density functions</term><term>Bottom elevations</term><term>Bottom evolution</term><term>Bottom shear stress</term><term>Brenta river</term><term>Cambridge univ</term><term>Carniello</term><term>Channel network</term><term>Climate change</term><term>Conceptual model</term><term>Conceptual stability model</term><term>Consorzio venezia</term><term>Critical shear stress</term><term>Deeper bottom elevations</term><term>Defina</term><term>Deposition</term><term>Deposition rate</term><term>Elevation</term><term>Equilibrium depth</term><term>Erosion</term><term>Erosion phase</term><term>Erosion process</term><term>Erosion rate</term><term>Erosive</term><term>Erosive conditions</term><term>Erosive trend</term><term>Estuarine</term><term>Estuarine stud</term><term>Evolution figure</term><term>Evolution model</term><term>Fagherazzi</term><term>First approximation</term><term>Flat erosion</term><term>Flats</term><term>Frequency area distribution</term><term>Frequency area distributions</term><term>Geophys</term><term>Gray lines</term><term>High erosion rates</term><term>Ingegneria idraulica</term><term>Initial phase</term><term>Initial salt marsh deterioration phase</term><term>Intergovernmental panel</term><term>Lagoon</term><term>Lagoon morphology</term><term>Landward boundary</term><term>Last century</term><term>Leonardo harbor</term><term>Level rise</term><term>Lido inlet</term><term>Linear extrapolation</term><term>Local rate</term><term>Magistrato alle acque</term><term>Malamocco inlets</term><term>Marani</term><term>Marsh</term><term>Meteorological condition</term><term>Morphodynamic equilibrium</term><term>Morphological evolution</term><term>Northern lagoon</term><term>Northern part</term><term>Organic production</term><term>Organic sediment production</term><term>Piano degli interventi</term><term>Point model</term><term>Punta della salute</term><term>Recupero morfologico</term><term>Reliable future configuration</term><term>Salt marsh</term><term>Salt marsh areas</term><term>Salt marsh deterioration</term><term>Salt marsh deterioration process</term><term>Salt marsh elevation</term><term>Salt marsh extent</term><term>Salt marshes</term><term>Sediment</term><term>Sediment dynamics</term><term>Sediment erosion</term><term>Sediment loss</term><term>Sediment resuspension</term><term>Sediment supply</term><term>Separate analysis</term><term>Sette morti</term><term>Shallow microtidal basins</term><term>Shear stress</term><term>Shear stresses</term><term>Slower erosive trend</term><term>Stability model</term><term>Stable equilibrium</term><term>Studio attivita</term><term>Subtidal flats</term><term>Technical report</term><term>Temporal evolution</term><term>Temporary equilibrium condition</term><term>Tidal</term><term>Tidal basin</term><term>Tidal channels</term><term>Tidal currents</term><term>Tidal flats</term><term>Time evolution</term><term>Triangular grid</term><term>Unchanneled portion</term><term>Vegetation dynamics</term><term>Venezia</term><term>Venice</term><term>Venice lagoon</term><term>Venice water authority</term><term>Wind speed</term><term>Wind waves</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">During the last century, the Venice lagoon, Italy, has been experiencing a general degradation consisting of the deepening of tidal flats and the reduction of salt marsh areas. A conceptual model describing the long‐term evolution of such lagoons has recently been proposed. According to the model, the long‐term degradation consists of two steps: an initial salt marsh deterioration phase followed by a tidal flat erosion phase. In this work we test the long‐term evolution model through the analysis of four different bathymetries of the Venice lagoon during the last century (1901, 1932, 1970, and 2003). The result of the analysis confirms that the recent past morphological evolution of the Venice lagoon has actually followed the proposed model and highlights a slower erosive trend characterizing the northern part of the lagoon compared to the moderately rapid erosion affecting the central southern part. This result enables us to infer the likely future evolution of the Venice lagoon as long as the present forcing conditions are maintained.</div></front></TEI><affiliations><list><country><li>Italie</li></country><region><li>Vénétie</li></region><settlement><li>Padoue</li></settlement><orgName><li>Université de Padoue</li></orgName></list><tree><country name="Italie"><region name="Vénétie"><name sortKey="Carniello, Luca" sort="Carniello, Luca" uniqKey="Carniello L" first="Luca" last="Carniello">Luca Carniello</name></region><name sortKey="Carniello, Luca" sort="Carniello, Luca" uniqKey="Carniello L" first="Luca" last="Carniello">Luca Carniello</name><name sortKey="D Alpaos, Luigi" sort="D Alpaos, Luigi" uniqKey="D Alpaos L" first="Luigi" last="D'Alpaos">Luigi D'Alpaos</name><name sortKey="Defina, Andrea" sort="Defina, Andrea" uniqKey="Defina A" first="Andrea" last="Defina">Andrea Defina</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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