Multiplatform observation of the surface circulation in the Gulf of Naples (Southern Tyrrhenian Sea) |
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Authors: | Marco Uttieri Daniela Cianelli Bruno Buongiorno Nardelli Berardino Buonocore Pierpaolo Falco Simone Colella Enrico Zambianchi |
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Institution: | 1.Dipartimento di Scienze per l’Ambiente,Università degli Studi di Napoli “Parthenope”,Naples,Italy;2.ISPRA—Istituto Superiore per la Protezione e la Ricerca Ambientale,Rome,Italy;3.CNR-Istituto di Scienze dell’Atmosfera e del Clima,Rome,Italy;4.CNR-Istituto per l’Ambiente Marino Costiero,Naples,Italy |
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Abstract: | The Gulf of Naples (Southern Tyrrhenian Sea) is a highly urbanised area, where human activities and natural factors (e.g.
river runoff, exchanges with adjacent basins) can strongly affect the water quality. In this work we show how surface transport
can influence the distribution of passively drifting surface matter, and more in general if and how the circulation in the
basin can promote the renovation of the surface layer. To this aim, we carried out a multiplatform analysis by putting together
HF radar current fields, satellite images and modelling tools. Surface current fields and satellite images of turbidity patterns
were used to initialise and run model simulations of particle transport and diffusion. Model results were then examined in
relation to the corresponding satellite distributions. This integrated approach permits to investigate the concurrent effects
of surface dynamics and wind forcing in determining the distribution of passive tracers over the basin of interest, identifying
key mechanisms supporting or preventing the renewal of surface waters as well as possible areas of aggregation and retention. |
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