Comments: download file (pdf )
Ref.: SiPLAB Report 05/03, University of Algarve,
2003.
Abstract: Acoustic tomography in range-dependent waveguides
using
source-array pair represents an inverse problem with many potential
solutions.
The present problem is to model an upwelling filament whic is a
localized
uprise of cold water and introducing a high degree pf range dependence.
In
this study a parameterization scheme with a reduced number of
parameters
is proposed in order to represent the spatial evolution of the
filament
using an asymmetric Gaussian function parameterized by two variances,
an
amplitude coeffcient and a mean value. Using a real data example of the
filament
of the California current system, this modeling scheme is tested on
semi-synthetic
data. The results indicate that such an approach can be considered for
an
efficient modeling of a complex oceanographic feature.
ACKNOWLEDGMENT: this work was supported by ATOMS project (FCT, Portugal).