Acoustic backscattering measurement from sandy seafloor at 6–24 kHz in the South Yellow Sea

KAN Guangming; LIU Baohua; YANG Zhiguo; YU Shengqi; QI Lehua; YU Kaiben; PEI Yanliang

doi:10.1007/s13131-019-1388-4

Article Contents

Article Navigation > Acta Oceanologica Sinica > 2019 > 38(5): 99-108

KAN Guangming, LIU Baohua, YANG Zhiguo, YU Shengqi, QI Lehua, YU Kaiben, PEI Yanliang. Acoustic backscattering measurement from sandy seafloor at 6–24 kHz in the South Yellow Sea[J]. Acta Oceanologica Sinica, 2019, 38(5): 99-108. doi: 10.1007/s13131-019-1388-4

Citation:

KAN Guangming, LIU Baohua, YANG Zhiguo, YU Shengqi, QI Lehua, YU Kaiben, PEI Yanliang. Acoustic backscattering measurement from sandy seafloor at 6–24 kHz in the South Yellow Sea[J]. Acta Oceanologica Sinica, 2019, 38(5): 99-108. doi: 10.1007/s13131-019-1388-4

Citation:

KAN Guangming, LIU Baohua, YANG Zhiguo, YU Shengqi, QI Lehua, YU Kaiben, PEI Yanliang. Acoustic backscattering measurement from sandy seafloor at 6–24 kHz in the South Yellow Sea[J]. Acta Oceanologica Sinica, 2019, 38(5): 99-108. doi: 10.1007/s13131-019-1388-4

PDF( 783 KB)

Acoustic backscattering measurement from sandy seafloor at 6–24 kHz in the South Yellow Sea

doi: 10.1007/s13131-019-1388-4

1.
Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China;Laboratory for Marine Geology and Environment, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
2.
Laboratory for Marine Geology and Environment, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China;National Deep Sea Center, Ministry of Natural Resources, Qingdao 266237, China
3.
Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China;College of Marine Geosciences, Ocean University of China, Qingdao 266100, China

Received Date: 2018-08-06

Abstract

Abstract

The acoustic bottom backscattering strength was measured at the frequency range of 6-24 kHz on a typical sandy bottom in the South Yellow Sea by using omnidirectional sources and omnidirectional receiving hydrophones. In the experiment, by avoiding disturbances due to scattering off the sea surface and satisfying the far-field condition, we obtained values of acoustic bottom backscattering strength ranging from -41.1 to -24.4 dB within a grazing angle range of 18°-80°. In the effective range of grazing angles, the acoustic scattering strength generally increases with an increase in the grazing angles, but trends of the variation were distinct in different ranges of frequency, which reflect different scattering mechanisms. The frequency dependence of bottom backscattering strength is generally characterized by a positive correlation in the entire frequency range of 6-24 kHz at the grazing angles of 20°, 40° and 60° with the linear regression slopes of 0.222 9 dB/kHz, 0.513 0 dB/kHzand 0.174 6 dB/kHz, respectively. At the largest grazing angle of 80°, the acoustic backscattering strength exhibits no evident frequency dependence.
- acoustic backscattering strength,
- sandy bottom,
- South Yellow Sea,
- gazing angle dependence,
- frequency dependence

FullText(HTML)

References(24)

References

Dong Zhongchen, Li Yanan, Jin Yanfeng. 2013. Shallow seafloor reverberation modeling and simulation of torpedo. Torpedo Technology (in Chinese), 21(2):100-104

Gao Bo. 2013. Modeling and characteristic of long-range bottom reverberation in shallow water (in Chinese)[dissertation]. Harbin:Harbin Engineering University

Hines P C, Osler J C, MacDougald D J. 2005. Acoustic backscatter measurements from littoral seabeds at shallow grazing angles at 4 and 8 kHz. The Journal of the Acoustical Society of America, 117(6):3504-3516, doi: 10.1121/1.1898064

Hu Jianzhong. 2009. Measurement and model calculation of sea bottom three-dimensional scattering strength (in Chinese)[dissertation]. Harbin:Harbin Engineering University

Jackson D R, Baird A M, Crisp J J, et al. 1986. High-frequency bottom backscatter measurements in shallow water. The Journal of the Acoustical Society of America, 80(4):1188-1199, doi: 10.1121/1.393809

Jackson D R, Briggs K B. 1992. High-frequency bottom backscattering:roughness versus sediment volume scattering. The Journal of the Acoustical Society of America, 92(2):962-977, doi: 10.1121/1.403966

Jackson D R, Richardson M D. 2007. High-frequency seafloor acoustics. New York:Springer Science+Business Media, LLC

Jin Guoliang, Wu Chengyi, Zhang Guohua, et al. 1987. The measurement of two-dimensional bottom backscattering coefficients at shallow water. Acta Acustica (in Chinese), 12(3):227-231

La H, Choi J W. 2010. 8-kHz bottom backscattering measurements at low grazing angles in shallow water. The Journal of the Acoustical Society of America, 127(4):EL160-EL165, doi: 10.1121/1.3338987

Li Songwen, Sun Liangyi. 2008. Subcritical detection of buried mine-a review on the theories, experiments and equipment. Ship Electronic Engineering (in Chinese), 28(2):136-140

McKinney C M, Anderson C D. 1964. Measurements of backscattering of sound from the ocean bottom. The Journal of the Acoustical Society of America, 36(1):158-163, doi: 10.1121/1.1918927

Peng Zhaohui, Zhou Jixun, Zhang Renhe. 2004. In-plane bistatic backward scattering from seabottom with randomly inhomogeneous sediment and rough interface. Science in China Series G:Physics, Mechanics and Astronomy, 47(6):702-716, doi: 10.1007/BF02687341

Pouliquen E, Lyons A P. 2002. Backscattering from bioturbated sediments at very high frequency. IEEE Journal of Oceanic Engineering, 27(3):388-402, doi: 10.1109/JOE.2002.1040926

Soukup R J, Gragg R F. 2003. Backscatter from a limestone seafloor at 2-3.5 kHz:measurements and modeling. The Journal of the Acoustical Society of America, 113(5):2501-2514, doi: 10.1121/1.1558039

Stanic S, Briggs K B, Fleischer P, et al. 1988a. Shallow-water high-frequency bottom scattering off Panama City, Florida. The Journal of the Acoustical Society of America, 83(6):2134-2144, doi: 10.1121/1.396341

Stanic S, Briggs K B, Fleischer P, et al. 1989. High-frequency acoustic backscattering from a coarse shell ocean bottom. The Journal of the Acoustical Society of America, 85(1):125-136, doi: 10.1121/1.397720

Stanic S, Eckstein B E, Williams R L, et al. 1988b. A high-frequency, shallow-water acoustic measurement system. IEEE Journal of Oceanic Engineering, 13(3):155-162, doi: 10.1109/48.572

Wen Mingming, Xiao Bo, Cui Huayi. 2006. The method for measuring the acoustics characteristic of the ocean sediment. Ocean Technology (in Chinese), 25(1):124-126

Williams K L. 2009. Forward scattering from a rippled sand/water interface:modeling, measurements, and determination of the plane wave, flat surface reflection coefficient. IEEE Journal of Oceanic Engineering, 34(4):399-406, doi: 10.1109/JOE.2008.2002121

Williams K L, Jackson D R, Tang Dajun, et al. 2009. Acoustic backscattering from a sand and a sand/mud environment:experiments and data/model comparisons. IEEE Journal of Oceanic Engineering, 34(4):388-398, doi: 10.1109/JOE.2009.2018335

Williams K L, Jackson D R, Thorsos E I, et al. 2002. Acoustic backscattering experiments in a well characterized sand sediment:data/model comparisons using sediment fluid and biot models. IEEE Journal of Oceanic Engineering, 27(3):376-387, doi: 10.1109/JOE.2002.1040925

Yu Shengqi, Liu Baohua, Yu Kaiben, et al. 2017. A backscattering model for a stratified seafloor. Acta Oceanologica Sinica, 36(7):56-65, doi: 10.1007/s13131-017-1084-1

Zhang Renhe, Li Zhenglin, Peng Zhaohui, et al. 2013. Overview of shallow water acoustics. Scientia Sinica Physica, Mechanica & Astronomica (in Chinese), 43(S1):S2-S15

Zou Dapeng, Kan Guangming, Long Jianjun. 2014. Methods of in-situ acoustic measurement of seafloor surface sediment. Haiyang Xuebao (in Chinese), 36(11):111-119

Relative Articles

Supplements(0)

Cited By

Proportional views