Acoustic measurements and modeling of sub-bottom layers on the summit of the Atlantis II Seamount
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Abstract
Sub-bottom profiler images taken from the summit plateau of the Atlantis II Seamount reveal distinct seabed stratigraphy, including marine sediment, limestone, and basalt layers. Acoustic reflection data also show arrivals reflecting from this sub-bottom structure. A wavenumber integration model with elastic geoacoustic properties is able to reproduce the arrival pattern of seabed reflections and particularly the phase inversion of the sub-bottom return. The reflection model suggests that the limestone layer is eroded with high porosity and possesses a lower compressional velocity than a well-cemented layer. The model results also highlight the necessity of incorporating elastic effects for realistic geoacoustic characterization.
Suggested Citation
Chen, T., Milone, M.A., Chaytor, J., Miller, J.H., Potty, G.R., Hodgkiss, W.S., and Lin, Y., 2026, Acoustic measurements and modeling of sub-bottom layers on the summit of the Atlantis II Seamount: JASA Express Letters, v. 6, no. 5, 0056001, 8 p., https://doi.org/10.1121/10.0043836.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Acoustic measurements and modeling of sub-bottom layers on the summit of the Atlantis II Seamount |
| Series title | JASA Express Letters |
| DOI | 10.1121/10.0043836 |
| Volume | 6 |
| Issue | 5 |
| Publication Date | May 07, 2026 |
| Year Published | 2026 |
| Language | English |
| Publisher | Acoustical Society of America |
| Contributing office(s) | Woods Hole Coastal and Marine Science Center |
| Description | 0056001, 8 p. |
| Other Geospatial | Atlantis II Seamount |