Geostatistical Inversion of Seismic Oceanography Data for Ocean Salinity and Temperature Models

Conventional multi-channel seismic reflection data, known as seismic oceanography, has recently been used for the qualitative interpretation of meso- to large-scale hydrographic structures of interest. Seismic oceanography has been successfully imaging oceanographic structures in an intermediate sca...

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Bibliographic Details
Published in:Mathematical geosciences 2018-05, Vol.50 (4), p.477-489
Main Authors: Azevedo, Leonardo, Huang, Xinghui, Pinheiro, Luís M., Nunes, Rúben, Caeiro, Maria Helena, Song, Haibin, Soares, Amílcar
Format: Article
Language:English
Subjects:
Bathythermographs
Chemistry and Earth Sciences
Computer Science
Earth and Environmental Science
Earth Sciences
Geostatistics
Geotechnical Engineering & Applied Earth Sciences
High resolution
Hydrogeology
Imaging techniques
Iterative methods
Ocean models
Ocean temperature
Oceanographic data
Oceanography
Oceans
Physics
Properties
Qualitative analysis
Reflection
Resolution
Salinity
Salinity effects
Seismic activity
Seismic profiles
Seismic surveys
Statistics for Engineering
Structures
Temperature effects
Temperature measurement
XBTs
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Summary:Conventional multi-channel seismic reflection data, known as seismic oceanography, has recently been used for the qualitative interpretation of meso- to large-scale hydrographic structures of interest. Seismic oceanography has been successfully imaging oceanographic structures in an intermediate scale not sampled by traditional oceanographic tools, such as conductivity, depth and temperature measurements and eXpendable BathyThermograph (XBT) data. However, few attempts have been made for successfully quantifying ocean properties, such as ocean temperature and salinity, directly from the seismic reflection data. This work presents an iterative geostatistical methodology capable of inverting conventional seismic oceanographic data simultaneously for high-resolution temperature and salinity ocean models. The proposed methodology was developed and implemented in a real set of contemporaneous XBT data and two-dimensional seismic profile acquired southwest of Portugal. The resulting high-resolution temperature and salinity models reproduce existing XBT data not used to constrain the geostatistical inversion, which permits reliable quantification of the ocean properties of interest.
ISSN:1874-8961
1874-8953
DOI:10.1007/s11004-017-9722-x