DOI: 10.1002/grl.50844
论文题名: Direct temperature and salinity acoustic full waveform inversion
作者: Bornstein G. ; Biescas B. ; Sallarès V. ; Mojica J.F.
刊名: Geophysical Research Letters
ISSN: 0094-8663
EISSN: 1944-8394
出版年: 2013
卷: 40, 期: 16 起始页码: 4344
结束页码: 4348
语种: 英语
英文关键词: acoustic oceanography
; adjoint method
; full waveform inversion
; thermohaline fine structure
Scopus关键词: Adjoint methods
; Empirical relationships
; Fine structures
; Full-waveform inversion
; Impedance contrast
; Iterative inversion
; Multi-channel seismic datum
; Potential density
; Acoustic impedance
; Equations of state
; Iterative methods
; Physical properties
; Seismic response
; Seismic waves
; Waveform analysis
; acoustic data
; inversion layer
; salinity
; seismic data
; thermohaline structure
; waveform analysis
英文摘要: Recent work has shown that Full Waveform Inversion could be suitable to extract physical properties such as sound speed (c), density (ρ), temperature (T), and salinity (S) from the weak impedance contrasts associated with the ocean's thermohaline fine structure.The seismic inversion approaches proposed so far are based on the iterative inversion of c from multichannel seismic data, while the rest of parameters (T,S, and ρ) are determined in a second step using two equations of state and a local T-S empirical relationship. In this work, we present an alternative to this approach. Using 1-D synthetic seismic data, we demonstrate that the direct full waveform inversion of T and S using adjoint methods is feasible without the use of any local T-S relationship and that the models of physical properties obtained with this approach are far more accurate than those inferred from c. Key Points T and S can be inverted simultaneously from ocean acoustic data using FWI Local T-S empirical relationships are not required for the inversion Our T and S results have a potential density error of 0.01 kg/m3. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84882307211&doi=10.1002%2fgrl.50844&partnerID=40&md5=9234a427c82bab69ed0537c7ede6948f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5927
Appears in Collections: 气候减缓与适应
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作者单位: Institut de Ciencies Del Mar, CSIC, CMIMA, Passeig Maritim de la Barceloneta 37-49, 08003 Barcelona, Spain
Recommended Citation:
Bornstein G.,Biescas B.,Sallarès V.,et al. Direct temperature and salinity acoustic full waveform inversion[J]. Geophysical Research Letters,2013-01-01,40(16).