Robinson, A.R., J. Sellschopp, A. Warn-Varnas, W.G. Leslie, C.J. Lozano, P.J. Haley Jr., L.A. Anderson and P.F.J. Lermusiaux, 1999. The Atlantic Ionian Stream. Journal of Marine Systems, 20, 129-156.
This paper describes some preliminary results of the cooperative effort between SACLANT Undersea Research Centre
and Harvard University in the development of a regional descriptive and predictive capability for the Strait of Sicily. The
aims of the work have been to: 1. determine and describe the underlying dynamics of the region; and, 2. rapidly assess
synoptic oceanographic conditions through measurements and modeling. Based on the 1994-1996 surveys, a picture of some
semi-permanent features which occur in the Strait of Sicily is beginning to emerge. Dynamical circulation studies, with
assimilated data from the surveys, indicate the presence of an Adventure Bank Vortex – ABV., Maltese Channel Crest – MCC., and Ionian Shelf Break Vortex – IBV. A schematic water mass model has been developed for the region. Results
from the Rapid Response 96 real-time numerical modeling experiments are presented and evaluated. A newly developed data
assimilation methodology, Error Subspace Statistical Estimation – ESSE. is introduced. The ideal Error Subspace spans and
tracks the scales and processes where the dominant, most energetic, errors occur, making this methodology especially useful
in real-time adaptive sampling. q1999 Elsevier Science B.V. All rights reserved.