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Observations of the R-reflector and sediment interface reflection at the Shallow Water 06' Central site

Title
Observations of the R-reflector and sediment interface reflection at the Shallow Water 06' Central site
Author
최지웅
Keywords
LATE QUATERNARY SEDIMENTATION; SHALLOW-WATER ENVIRONMENT; JERSEY CONTINENTAL-SHELF; OUTER SHELF; SEA-FLOOR; ATTENUATION; INVERSION; MIDDLE; SPEED
Issue Date
2008-09
Publisher
ACOUSTICAL SOC AMER AMER INST PHYSICS
Citation
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, v. 124, No. 3, Page. EL128-EL134
Abstract
Acoustic bottom-interacting measurements from the Shallow Water '06 experiment experiment (frequency range 1-20 kHz) are presented. These are co-located with coring and stratigraphic studies showing a thin (similar to 20 cm) higher sound speed layer overlaying a thicker (similar to 20 m) lower sound speed layer ending at a high-impedance reflector (R reflector). Reflections from the R reflector and analysis of the bottom reflection coefficient magnitude for the upper two sediment layers confirm both these features. Geoacoustic parameters are estimated, dispersion effects addressed, and forward modeling using the parabolic wave equation undertaken. The reflection coefficient measurements suggest a nonlinear attenuation law for the thin layer of sandy sediments. (C) 2008 Acoustical Society of America.
URI
https://asa.scitation.org/doi/abs/10.1121/1.2963048http://repository.hanyang.ac.kr/handle/20.500.11754/104888
ISSN
0001-4966
DOI
10.1121/1.2963048
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > MARINE SCIENCE AND CONVERGENCE ENGINEERING(해양융합공학과) > Articles
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