Range-Dependent Seismo-Acoustic Propagation in the Marginal Ice Zone
Abstract
Single-scattering operators are used to extend the seismo-acoustic parabolic equation to problems involving transitions between areas with and without ice cover, which are common in the marginal ice zone. Gradual transitions are handled with single-scattering operators for sloping fluid–solid interfaces. Sudden transitions, which may occur when the ice fractures and drifts, are handled with a single-scattering operator that conserves normal displacement and tangential stress across the vertical interfaces between the range-independent regions that are used to approximate a range-dependent environment. The approach is tested by making comparisons with a finite-element model for problems involving range-dependent features in the ice cover and in a sediment that supports shear waves.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 01, 2018
- Source ID
- 10.1142/s2591728518500135
Entities
People
- Altan Turgut
- David C. Calvo
- Joseph M. Fialkowski
- Michael D. Collins
Organizations
- Office of Naval Research
- United States Naval Research Laboratory