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dc.contributor.authorJoseph, A.
dc.contributor.authorDesa, E.
dc.date.accessioned2009-01-12T08:57:57Z
dc.date.available2009-01-12T08:57:57Z
dc.date.issued1997
dc.identifier.citationAcoustic remote sensing applications, ed. by: Singal, S.P. 409-448p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/2022
dc.description.abstractAcoustic techniques have become powerful tools for measurement of ocean circulation mainly because of the ability of acoustic signals to travel long distances in water, and the inherently non-invasive nature of measurement. The satellite remote sensint techniques employing active and passive optical thermal and microwave signals, and coastally operated remote seusing techniques employing active electromagnetic signals in the H.F. and microwave bands are unable to penetrate below a very thin surface layer of the ocean surface and hence these techniques are unusable for measurement of subsurface circulation. The three methods of ocean circulation measurement using acoustic remote sensing techniques are the Lagrangian, Eulerian and single-profiling. Acoustic techniques used in oceanography for Lagrangian measurement of sub-surface flows are: 1) Tracking of sub-surface floats by ship-borne hydrophones, 2) Tracking of SOFAR floats, 3) Tomography, 4) Reciprocal transmission, 5) Sapce-time scintillation analysis. These five techniques are briefly discussed.
dc.language.isoen
dc.publisherNarosa, New Delhi (India)
dc.rightsCopyright [1997]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectacoustic imagery
dc.subjectremote sensing
dc.subjectocean circulation
dc.subjectlagrangian current measurement
dc.subjecteulerian current measurement
dc.subjectsensors
dc.subjectacoustic tomography
dc.titleAcoustic remote sensing of ocean flows
dc.typeBook Chapter


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