Comments: download file (pdf
Ref.: SiPLAB Report 03/01, University of Algarve, 2001.
Abstract: The properties of coastal ocean environments often
show a high variability with time and space (range, cross-range,
depth). While direct measurements of these properties can be time
consuming and o er usually a poor coverage, acoustic inversion
represents an attractive alternative to estimate these properties [1,
2]. The ATOMS project aims to study a coastal environment featuring a
cold water lament among warmer waters. One of the major goals of
the project is to show that it is possible to detect and characterize
such a lament in space and time using an acoustic inversion
method. The current work is a preliminary study in the project as it
deals with a simpli ed approach to the global problem: 1- The
particular case of a 2-D environment (vertical slice) is investigated.
This means that we consider only the variations of the properties in
the vertical plane de ned by the acoustic source and a vertical line
array. 2- Time variability is not considered. 3- Although they are
based on experimental records of a lament , the data used here
are only simulated data.
ACKNOWLEDGMENT: this work was partially supported by ATOMS project (FCT, Portugal)