Stochastic Modeling of Seafloor Morphology in Support of the Acoustic Reverberation SRP
Abstract
This report describes two numerical models of small- scale seafloor topography, SM1-P, corresponding to a 100 km x 100 km area of the east central Pacific Ocean near the Cocos-Pacific spreading center of the East Pacific Rise and Sm1-A, corresponding to a 100 km x 100 km area of the North Atlantic Ocean west of the Mid-Atlantic Ridge. The models comprise both a deterministic component, taken from the DBDB5 digital bathymetric data base, and a stochastic component, obtained as a single realization of a five-parameter Gaussian random field describing the abyssal-hill topography. The parameters assumed in computing the stochastic realizations have been estimated from Sea Beam swaths passing through or near the study areas. SM1-P and SM1-A are specified by a nested series of 1000 x 1000 point data files, which are available from the authors on 9-track magnetic tape. The nesting scheme employs a factor-of-ten reduction in scale on grids with knot spacing ranging from 100 m to 0.1 m. (MM)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 29, 1990
- Accession Number
- ADA228649
Entities
People
- John A. Goff
- Thomas H. Jordan
Organizations
- Massachusetts Institute of Technology