Deposition and flux of sediment from the Po River, Italy: An idealized and wintertime numerical modeling study

Bever, Aaron J.; Harris, Courtney K.; Sherwood, Christopher R.; Signell, Richard P.

doi:10.1016/j.margeo.2009.01.007

Cited by 48 publications

(35 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The most significant contribution is from the Po River, with an annual mean flow rate of 1700 m 3 /s [28]. The Po river plume largely affects the deposition of sediments and causes a reduction in salinity from freshwater discharge [26,29]. Owing to river runoff and oceanographic conditions, the region also exhibits a decreasing trend of nutrient concentration and production from North to South and from West to East [30], see the mean concentration of Chlorophyll-a in Figure 3.…”

Section: Environment and Biotamentioning

confidence: 99%

“…Prevailing winds and circulation patterns affect the transport and distribution of the plume [28,29] showed that the plume is generally confined to the North of Ravenna. There are also regional environmental discontinuities along an inshore-offshore axis, related to differences in depth, wave-induced shear stress, sediment deposits and human impacts [29,31].…”

Section: Environment and Biotamentioning

confidence: 99%

“…There are also regional environmental discontinuities along an inshore-offshore axis, related to differences in depth, wave-induced shear stress, sediment deposits and human impacts [29,31]. In particular, a high contribution of wave-induced shear stress in shallow water was found inshore of the 20 m isobaths, leading to high re-suspension of sediments at shallow depths [29].…”

Section: Environment and Biotamentioning

confidence: 99%

See 2 more Smart Citations

Boosting Blue Growth in a Mild Sea: Analysis of the Synergies Produced by a Multi-Purpose Offshore Installation in the Northern Adriatic, Italy

et al. 2015

View full text Add to dashboard Cite

Abstract:In the near future, the oceans will be subjected to a massive development of marine infrastructures, including offshore wind, tidal and wave energy farms and constructions for marine aquaculture. The development of these facilities will unavoidably exert environmental pressures on marine ecosystems. It is therefore crucial that the economic costs, the use of marine space and the environmental impacts of these activities remain within acceptable limits. Moreover, the installation of arrays of wave energy devices is still far from being economically feasible due to many combined aspects, such as immature technologies for energy conversion, local energy storage and moorings. Therefore, multi-purpose solutions combining renewable energy from the sea (wind, wave, tide), aquaculture and transportation facilities can be considered as a challenging, yet advantageous, way to boost blue growth. This would be due to the sharing of the costs of installation and using the produced energy locally to feed the different functionalities and optimizing marine spatial planning. This paper focuses on the synergies that may be produced by a multi-purpose offshore installation in a relatively calm sea, i.e., the Northern Adriatic Sea, Italy, and specifically offshore Venice. It analyzes the combination of aquaculture, energy production from wind and waves, and energy storage or transfer. Alternative solutions are evaluated based on specific criteria, including the maturity of the technology, the environmental impact, the induced risks and the costs. Based on expert judgment, the alternatives are ranked and a preliminary layout of the selected multi-purpose installation for the case study is proposed, to further allow the exploitation of the synergies among different functionalities.

show abstract

Section: Environment and Biotamentioning

confidence: 99%

Section: Environment and Biotamentioning

confidence: 99%

Section: Environment and Biotamentioning

confidence: 99%

See 1 more Smart Citation

Boosting Blue Growth in a Mild Sea: Analysis of the Synergies Produced by a Multi-Purpose Offshore Installation in the Northern Adriatic, Italy

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Namely, the influence of coastal and bottom currents, which are able to transport the eroded material, re-suspend sediments and rebuild the bottom topography, appeared to be of primary importance , Bever et al 2009). …”

Section: The Study Areamentioning

confidence: 99%

Towards validating a last generation, integrated wave-current-sediment numerical model in coastal regions using video measurements

Carniel

Sclavo

Archetti

2011

Oceanological and Hydrobiological Studies

View full text Add to dashboard Cite

This paper presents the first steps in the implementation of a morphological numerical model to be applied in the Bevano River region, a shallow water area in the Adriatic Sea, with the aim of helping the identification and assessment of erosional patterns and bottom morphological modifications induced by severe marine storms. The numerical modeling, performed using a fully 3D coupled wave-current-sediment version of the ROMS model, has been complemented with in situ data analysis and observations: a first qualitative validation of the results was given by the analysis of images acquired via an ARGUS video station.Hydrodynamic modeling highlighted how shear bottom stresses and bottom currents fields were heavily influenced by severe storm situations, and had large effects on the morphology of shallow regions. The correlation between the wave-current induced bottom stresses and the resulting topography was investigated. Nearshore hydrodynamics modeling results demonstrated the dominant role played by alongshore sediment * Corresponding author: sandro.carniel@ismar.cnr.it transport, with the magnitude of both cross-and along-shore wave-induced currents strongly depending on wave height and direction.We found a good qualitative conformity between the results of the numerical models applied during a "Bora" storm and the corresponding video observations; both techniques indicated the migration of the existing sandbar within the range of about 40 m seaward.Results show how integrated numerical open source tools, often used in oceanography, are becoming suitable for both preliminary investigations and for planning the effective littoral management, and how their calibration can be supported by the use of new low cost techniques, such as video measurements.

show abstract

“…In consequence, preferential depositional patterns during river floods can partially explain long-term fine deposits observed on the sea floor (Ogston et al 2000). On longer time-scales, advection of sediment by shelf currents can redistribute sediment and determine final deposition patterns (Sherwood et al 1994, Harris et al 2008, Bever et al 2009, Xu et al, 2011, Xue et al 2013.…”

Section: Introductionmentioning

confidence: 99%

Sediment Transport and Dispersal in the Nearshore of “Flash-Flood” Rivers.

Grifoll¹,

Gràcia²,

Guillén³

et al. 2014

Int. Conf. Coastal. Eng.

View full text Add to dashboard Cite

River sediment dispersal on the near-shore of "flash-flood" rivers is investigated using a coupled wave-currentsediment transport model. Besòs and Llobregat rivers (short and mountainous rivers in NW Mediterranean Sea, near to Barcelona City) are used as examples to study the sediment transport under "flash-flood" regime. The modeling system COWAST which includes the coupling between the water circulation model ROMS and the wave model SWAN, is applied to assess the sediment dispersal mechanisms and deposition in the coastal area off the two river mouths. Preferential depositional areas such as mud-belts were identified from the simulations. The sediment dispersal pattern obtained by the model agrees with observational measurments. Complementary numerical simulations revealed sorting of sediment grain size in the cross-shelf direction.

show abstract

Deposition and flux of sediment from the Po River, Italy: An idealized and wintertime numerical modeling study

Cited by 48 publications

References 59 publications

Boosting Blue Growth in a Mild Sea: Analysis of the Synergies Produced by a Multi-Purpose Offshore Installation in the Northern Adriatic, Italy

Boosting Blue Growth in a Mild Sea: Analysis of the Synergies Produced by a Multi-Purpose Offshore Installation in the Northern Adriatic, Italy

Towards validating a last generation, integrated wave-current-sediment numerical model in coastal regions using video measurements

Sediment Transport and Dispersal in the Nearshore of “Flash-Flood” Rivers.

Contact Info

Product

Resources

About