Hydrodynamic Modeling of the Roman Harbor of Portus in the Tiber Delta: The Impact of the North-Eastern Channel on Current and Sediment Dynamics

Autor: MILLET, Bertrand, Goiran, Jean-Philippe, Tronchere, Hervé
Přispěvatelé: Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN), ARCHEORIENT - Environnements et sociétés de l'Orient ancien (Archéorient), Université Lumière - Lyon 2 (UL2)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Institut méditerranéen d'océanologie ( MIO ), Institut de Recherche pour le Développement ( IRD ) -Aix Marseille Université ( AMU ) -Université de Toulon ( UTLN ) -Centre National de la Recherche Scientifique ( CNRS ), ARCHEORIENT - Environnements et sociétés de l'Orient ancien ( Archéorient ), Université Lumière - Lyon 2 ( UL2 ) -Centre National de la Recherche Scientifique ( CNRS )
Jazyk: angličtina
Rok vydání: 2014
Předmět:
[ INFO.INFO-MO ] Computer Science [cs]/Modeling and Simulation
[ SHS.HIST ] Humanities and Social Sciences/History
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory
[SDE.MCG]Environmental Sciences/Global Changes
Mediterranean
[ SHS.ENVIR ] Humanities and Social Sciences/Environmental studies
[ SDE.IE ] Environmental Sciences/Environmental Engineering
sediment dynamics
[ SHS.GEO ] Humanities and Social Sciences/Geography
[SHS]Humanities and Social Sciences
[ SDE ] Environmental Sciences
[ SHS ] Humanities and Social Sciences
navigation
[ SDE.BE ] Environmental Sciences/Biodiversity and Ecology
Portus
[SDE.IE]Environmental Sciences/Environmental Engineering
[SHS.GEO]Humanities and Social Sciences/Geography
current
[INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation
[SDE.ES]Environmental Sciences/Environmental and Society
ancient harbour
Hydrodynamic Modeling
[ SDE.MCG ] Environmental Sciences/Global Changes
Tiber delta
Italy
[ SHS.ARCHEO ] Humanities and Social Sciences/Archaeology and Prehistory
[SHS.ENVIR]Humanities and Social Sciences/Environmental studies
[SDE]Environmental Sciences
Trajanic harbor
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
[SHS.HIST]Humanities and Social Sciences/History
sediment infilling
[ SDE.ES ] Environmental Sciences/Environmental and Society
Zdroj: Geoarchaeology: An International Journal
Geoarchaeology: An International Journal, Wiley, 2014, 29 (5), pp.357-370. ⟨10.1002/gea.21485⟩
Geoarchaeology: An International Journal, 2014, 29 (5), pp.357-370. ⟨10.1002/gea.21485⟩
Geoarchaeology: An International Journal, Wiley, 2014, 29 (5), pp.357-370. 〈10.1002/gea.21485〉
ISSN: 0883-6353
1520-6548
DOI: 10.1002/gea.21485⟩
Popis: International audience; This study examines the hydrodynamics of the Roman harbor of Portus during the Trajanic period (second century A.D.). We have evaluated the impact of the north-eastern channel on water circulation and sediment resuspension within the harbor in relation to the problem of sediment infilling. We used a 2D numerical model to compute the distribution of the depth-averaged current velocity, bed shear stress, and kinetic energy induced by each of the four prevailing local winds. First, the results confirm the persistent conditions for sediment infilling over the entire western harbor basin, even when the north-eastern channel is operational; these conditions being present for 61.3% (40.3%) of the summer period and up to 68% (44.2%) of the winter period in the south-western harbor basin. Second, the results show that favorable conditions for navigation occur in the central basin, leading to the landing installations, under the S 180°, SE 135°, and NE 22° winds when the north-eastern channel is operational; these conditions being present for 21% of the summer period and 51.3% of the winter period. Inversely, the access to the landing installations with both channels operating remains affected by sediment infilling, for 40.3% of the summer period and 16.7% of the winter period.
Databáze: OpenAIRE
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