http://www.cnr.it/ontology/cnr/individuo/prodotto/ID49236

Seafloor evidence for the interaction between cascading and along-slope bottom water masses (Articolo in rivista)

Type

Articolo in rivista (Classe)
Prodotto della ricerca (Classe)

Label

Seafloor evidence for the interaction between cascading and along-slope bottom water masses (Articolo in rivista) (literal)

Anno

2007-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1029/2006JF000620 (literal)

Alternative label

Trincardi F., Verdicchio G., Miserocchi S. (2007)
Seafloor evidence for the interaction between cascading and along-slope bottom water masses
in Journal of geophysical research; American Geophysical Union, Washington (Stati Uniti d'America)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Trincardi F., Verdicchio G., Miserocchi S. (literal)

Pagina inizio

1 (literal)

Pagina fine

11 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

http://www.agu.org/pubs/crossref/2007.../2006JF000620.shtml doi:10.1029/2006JF000620, 2007 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://www.agu.org/journals/jf/ (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

112 (literal)

Rivista

Journal of geophysical research (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

11 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

F03011 (literal)

Note

ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

CNR-ISMAR, Sede di Bologna, Via Gobetti 101, 40129 Bologna, Italy (literal)

Titolo

Seafloor evidence for the interaction between cascading and along-slope bottom water masses (literal)

Abstract

The steep slope of the SW Adriatic margin (Central Mediterranean) is impacted today by two water masses having markedly different origin but a similar southward flow component: the Levantine Intermediate Water (LIW) and the North Adriatic Deep Water (NAdDW). The LIW forms through evaporation in the eastern Mediterranean and enters the Adriatic along a counterclockwise path. The NAdDW forms through winter cooling on the North Adriatic shelf and cascades across the western slope of the South Adriatic basin. Bathymetric and side-scan sonar (TOBI) images of the SW Adriatic margin, accompanied by Chirp sonar profiles, define an area of extreme seafloor complexity characterized by a variety of sediment waves, erosional scours, longitudinal furrows, and giant comet marks. These distinctive bottom-current features are not randomly distributed but appear genetically linked and have a consistent down-current arrangement. We ascribe this seafloor pattern to the constructive interference of the highly saline LIW, flowing along the slope between 200- and 600-m water depth, and the cold NAdDW, plunging off-shelf obliquely to the slope. Stratigraphic data indicate that this oceanographic regime has been active since the last glacial-interglacial transition. The cascading NAdDW is density driven but is not short-lived (as a turbidity current would be); consequently, the interaction between downslope and along-slope currents is here more dynamical as two water masses act simultaneously over a prolonged interval, somewhat diverting their paths and leading to locally enhanced energetic conditions at the seafloor (literal)

Editore