Inversions from source of opportunity data collected on horizontal and vertical line arrays.

Abstract

Environmental and source track parameter values were extracted by coherent spatial and temporal field processing of data from a ship of opportunity source that were recorded on collocated horizontal and vertical arrays. The data were collected during the Shallow Water 2006 (SW06) experiment in a continental shelf, sandy sediment environment with a water depth of approximately 70 m. Inversion solutions for environmental and source track parameter values were obtained from both conventionally and adaptively beamformed subaperture data over a 5‐km range scale. The inversion solution for the data from the source to the closest point of approach (CPA) is presented and compared to the prior information on the seabed parameter values provided by geophysical measurements and inversions using other measured acoustic data. The coherent received field structure for the source departing from CPA is compared to the model predictions obtained from the inversion solution for the seabed parameter values. Inversion soluti...