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Measurements of High-frequency Sea Surface Backscattering Signals  

최지웅 (한양대학교 지구해양과학과 해양음향연구실)
나정열 (한양대학교 지구해양과학과 해양음향연구실)
박경주 (한양대학교 지구해양과학과 해양음향연구실)
윤관섭 (한양대학교 지구해양과학과 해양음향연구실)
박정수 (국방과학연구소)
나영남 (국방과학연구소)
Publication Information
The Journal of the Acoustical Society of Korea / v.21, no.4, 2002 , pp. 421-429 More about this Journal
Abstract
Sea surface backscattering signal measurements were conducted in the shallow waters off the east coast of Korea to study the acoustic wave scattering from the sea surface. The grazing angles of wave range from 20° to 40° with a frequency of 60 kHz. The wind speed and surface roughness of the experiment area were 3 m/os and below 1 m, respectively. The measured acoustic backscattering strengths greatly exceed the composite roughness predictions at low grazing angles. To account for this discrepancy, the scattering strengths due to a near-surface bubble layer were considered. The prediction with bubble contribution was found to be in good agreement with the experimental measurement.
Keywords
Sea space scattering; Reverberation; Bubble layer;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Sound absorption based on ocean measurements: PartⅠ: Pure water and magnesium sulfate contributions /
[ R. E. Francois;G. R. Garrison ] / J. Acoust. Soc. Am.   DOI
2 /
[ H. Medwin;C. S. Clay ] / Fundamentals of Acoustical Oceanography
3 /
[ W. S. Burdic ] / Underwater Acoustic System Analysis
4 Generic Sonar Model /
[ H. Weinberg ] / Naval Underwater Syst. Ctr., Tech. Doc.
5 Survey of thermal, radiation, and viscous damping of pulsating air bubbles in water /
[ Jr. C. Devin ] / J. Acoust. Soc. Am.
6 Sea surface reverberation: A review /
[ S. T. McDaniel ] / J. Acoust. Soc. Am.   DOI   ScienceOn
7 Echoes from vertically striated subresonant bubble clouds;a model for ocean surface reverberation /
[ B. E. McDonald ] / J. Acoust. Soc. Am.   DOI
8 Spectral spread of sea-surface reverberation /
[ S. T. McDaniel;A. D. Gorman ] / J. Acoust. Soc. Am.   DOI   ScienceOn
9 /
[ R. J. Urick ] / Principles of Underwater Sound
10 /
[] / APL-UW High-Frequency Ocean Environmental Acoustic Models Handbook
11 Simultaneous acoustic and microwave backscattering from the sea surface /
[ P. H. Dahl;W. J. Plant;B. Nutzel;A. Schmidt;E. A. Terray ] / J. Acoust. Soc. Am.   DOI   ScienceOn
12 Directional spectra of wind generated waves /
[ M. A. Donelan;J. Hamilton;W. H. Hui ] / Philos. Trans. R. Soc. London Ser. A   DOI
13 Acoustic scattering from near-surface bubble layers /
[ P. A. Crowther;W. Lauterborn(ed.) ] / Cavitation and Inhomogeneities in Underwater Acoustics
14 Acoustic scattering from ocean microbubble plumes in the 100Hz to 2kHz region /
[ F. S. Henyey ] / J. Acoust. Soc. Am.   DOI
15 /
[ L. M. Brekhovskikh;Yu. P. Lysanov ] / Fundamentals of Ocean Acoustics(2nd ed)
16 On bistatic sea surface scattering; Field measurements and modeling /
[ P. H. Dahl ] / J. Acoust. Soc. Am.   DOI   ScienceOn
17 Sound absorption based on ocean measurements: Part Ⅱ: Boric acid contribution and equation for total absorption /
[ R. E. Francois;G. R. Garrison ] / J. Acoust. Soc. Am.   DOI   ScienceOn
18 The scattering of sound waves at a rough surface with two types of irregularity /
[ B. F. Kur'ynov ] / Sov. Phys. Acoust.
19 Acoustic and radar sea surface backscatter /
[ S. T. McDaniel;A. D. Gorman ] / J. Geophys. Res.   DOI
20 Bubble populations and spectra in coastal waters;a photographic approach /
[ B. D. Johnson;R. C. Cooke ] / J. Geophys. Res.   DOI
21 Surface backscattering strengths measured with explosive charges /
[ R. P. Chapman;J. H. Harris ] / J. Acoust. Soc. Am.   DOI
22 The theory and applications of ocean wave measuring systems at and below the sea surface, on the land, and from aircraft and spacecraft /
[ W. J. Pierson ] / NASA Contract Rep. CR-2646
23 Surface backscattering strengths measured over an extended range of frequencies and grazing angles /
[ R. P. Chapman;H. D. Scott ] / J. Acoust. Soc. Am.   DOI
24 내만에서의 해수면 후방산란신호 특성 /
[ 최지웅;나정열;조운현 ] / 한국음향학회지   과학기술학회마을
25 양상태 해수면 음파산란 측정 /
[ 최지웅;나정열;나영남 ] / 한국음향학회지   과학기술학회마을
26 Bubble populations and spectra in near-surface ocean;Summary and review of field measurements /
[ J. Wu ] / J. Geophys. Res.   DOI
27 High frequency sonar equation models for bottom backscatter and forward loss /
[ P. D. Mourad;D. R. Jackson ] / Proc. OCEAN'89
28 On the spatial coherence and angular spreading of sound forward scattered from the sea surface; Measurements and interpretive model /
[ P. H. Dahl ] / J. Acoust. Soc. Am.   DOI   ScienceOn
29 Comparison of holographic and Coulter Counter measurements of cavitation nuclei in the ocean /
[ T. J. O'Hern(et al.) ] / J. Fluids Eng.   DOI