title: Sequential geoacoustic inversion at the continental shelfbreak.
abstract: Environmental parameters can have large spatial and temporal variability in shelfbreak regions. The capability of sequential Bayesian filters in tracking this variation is investigated. Particle filtering (PF) is used to extract the environmental parameters and their uncertainties. The method tracks the environment with fewer particles relative to conventional geoacoustic inversion methods using successive independent inversions. As an example, data from the Shallow Water 2006 Experiment are processed. The PF approach first is used to track the source and the environment with little spatial variation just northwest of the shelfbreak. Then the strongly range-dependent shelfbreak region is analyzed and the PF results are compared to previous geoacoustic inversion studies from the region.
authors.affiliation: Marine Physical Laboratory, Scripps Institution of Oceanography, La Jolla, California 92093-0238, USA. cyardim@ucsd.edu
authors.forename: Caglar
authors.initials: C
authors.lastname: Yardim
authors.forename: Peter
authors.initials: P
authors.lastname: Gerstoft
authors.forename: William S
authors.initials: WS
authors.lastname: Hodgkiss