The measurement of sand transport in two inlets of Venice lagoon, Italy (Articolo in rivista)

Type
Label
  • The measurement of sand transport in two inlets of Venice lagoon, Italy (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.ecss.2009.05.016 (literal)
Alternative label
  • Amos, C.L. (1), Villatoro, M. (1), Helsby, R. (1), Thompson, C.E.L. (1), Zaggia, L. (2), Umgiesser, G. (2), Venturini, V. (1), Are, D. (3), Sutherland, T.F., Mazzoldi, A. (2), Rizzetto, F. (2) (2010)
    The measurement of sand transport in two inlets of Venice lagoon, Italy
    in Estuarine, coastal and shelf science (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Amos, C.L. (1), Villatoro, M. (1), Helsby, R. (1), Thompson, C.E.L. (1), Zaggia, L. (2), Umgiesser, G. (2), Venturini, V. (1), Are, D. (3), Sutherland, T.F., Mazzoldi, A. (2), Rizzetto, F. (2) (literal)
Pagina inizio
  • 225 (literal)
Pagina fine
  • 236 (literal)
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  • 87 (literal)
Rivista
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  • 12 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) School of Ocean and Earth Science, National Oceanography Centre, Southampton, Hampshire SO14 3ZH, UK (2) Institute of Marine Sciences, National Research Council, Castello 1364/a, Venezia, Italy (3) SELC SpA, Marghera, Italy (4) DFO-CAER, W. Vancouver, BC, Canada V7V 1N6 (literal)
Titolo
  • The measurement of sand transport in two inlets of Venice lagoon, Italy (literal)
Abstract
  • Sand transport in Lido and Chioggia inlets was measured using modified Helley-Smith sand traps equipped with 60-micron nets. The traps had an efficiency of about 4% only but provided enough material for analysis. Very fine sand (0.07 < d < 0.11 mm) only was collected in the traps. Transport of sand was greatest in the bottom 10% of the water column and followed a Rouse profile. Sand extended to a height of about 4 m above the bed during peak flows corresponding to the estimated thickness of the boundary layer; and observed in synoptic ADCP profiles. The sand in the benthic boundary layer was largely inorganic (>95%); above this layer, organic content varied widely and was greatest near the surface. The movability number Ws=U* showed a linear relationship to dimensionless grain diameter (D*): (Ws/U*) = (D*/10); D*< 10. Sand concentration in suspension was simulated by a mean Rouse parameter of -2.01 +/-? 0.66 (Lido inlet) and -0.82 +/- ? 0.27 (Chioggia inlet). The b parameter (Hill et al., 1988) was correlated with D* and movability number in the form: b = 2:07 - 2:03D* + 59(Ws=U*)^2 (r^2 = 0.42). Von Karman's constant was back-calculated from a Law of the Wall relationship as a test on the accuracy of U* estimates; a mean value of 0.37 +/- 0.1 (compared to the accepted value of 0.41) suggest U* was accurate to within 10%. The constant of proportionality (g = 3.54? x 10^-4) between reference concentration (Ca) and normalized excess bed shear stress was in line with the published literature. (literal)
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