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Water masses, sound velocity structure and circulation between the eastern Algerian Basin and the Strait of Sicily in October 1996

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Abstract
The investigation is based on data collected between the eastern Algerian Basin and the Strait of Sicily and in the southern Tyrrhenian Sea. The major pathways of water masses are identified by the
 
core method and geostrophic currents are derived from the objectively analyzed density field.
 
Between the Sardinia Channel and the Strait of Sicily, the large-scale circulation of Modied Atlantic
 
Water (MAW) and Winter Intermediate Water (WIW) is found to be cyclonic. Inflow into the gyre
 
occurs via the Sardinia Channel by means of a boundary current attached to the Algerian coast, and
 
from the northern Tyrrhenian. The outflow is accomplished via the Strait of Sicily and to the
 
Tyrrhenian. The Levantine Intermediate Water (LIW) flow resembles that of MAW/WIW in the
 
southern Tyrrhenian, but it is opposed in the Strait of Sicily and off Tunisia. Outflow to the Algerian
 
Basin occurs south of Sardinia. In the eastern Algerian Basin the flow direction of all water masses is
 
eastward close to the Algerian shelf. Farther oshore, MAW flows mainly southwest whereas the LIW
 
is opposed to that supporting northward transport along the Sardinian shelf. The large-scale flow of all water masses is perturbed by mesoscale eddies. The impact of topographic obstacles is investigated.
 

URI
http://hdl.handle.net/20.500.12489/576

Report Number
SM-329

Collections
  • Technical Reports

Date
2002/01

Author(s)
Onken, Reiner
; 
Sellschopp, Jürgen

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SM-329-UU.pdf (4.415Mb)

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