http://www.cnr.it/ontology/cnr/individuo/prodotto/ID49763
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)
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- 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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