Zobrazeno 1 - 10
of 134
pro vyhledávání: '"backscattering strength"'
Autor:
Ho Seuk Bae, Won-Ki Kim
Publikováno v:
Frontiers in Marine Science, Vol 10 (2024)
Bubbles greatly affect the propagation of sound waves as the acoustic characteristics of a bubble cluster in water are distinct from those of undisturbed water. Therefore, bubble clusters affect the ability of sensors to detect underwater targets by
Externí odkaz:
https://doaj.org/article/8cfff2756b5a47ae9a0ac4382d5312d2
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 4, p 629 (2024)
The geoacoustic and physical properties of the bottom, as well as spatial distribution, are crucial factors in analyzing the underwater acoustic field structure and establishing a geoacoustic model. Acoustic inversion has been widely used as an econo
Externí odkaz:
https://doaj.org/article/e159687485df483facb0646b4c240cac
Publikováno v:
Fishes, Vol 9, Iss 2, p 47 (2024)
Antarctic silverfish (Pleuragramma antarcticum) play a crucial intermediary role in connecting top predators and krill in the food web of the Antarctic Ocean. Despite their crucial role, research on their abundance is lacking. In this study, we estim
Externí odkaz:
https://doaj.org/article/5602e305606b406ca714133c0b16b010
Autor:
Feilong Lin, Chujin Liang, Tao Ding, Dingyong Zeng, Feng Zhou, Xiao Ma, Chenghao Yang, Hongliang Li, Beifeng Zhou, Chenggang Liu, Weifang Jin
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 10, p 1950 (2023)
The northern Andaman Sea (AS) continental shelf is unique due to the diverse marine ecosystem and existences of both hypoxia and internal tides, but limited in situ observations restrict our understanding of the hydrographic dynamic process. Based on
Externí odkaz:
https://doaj.org/article/99ef9488c15c4a06855687ea928e4801
Autor:
Sri Pujiyati, Baigo Hamuna, Rohilah, Muhammad Hisyam, Endang S. Srimariana, I. Nyoman Metta Natih
Publikováno v:
Egyptian Journal of Aquatic Research, Vol 48, Iss 1, Pp 37-44 (2022)
The present study combined the data of environmental parameters and plankton distribution using hydroacoustic technology with the purpose to map the horizontal and vertical distribution of plankton in Yos Sudarso Bay, Jayapura, Indonesia. Hydroacoust
Externí odkaz:
https://doaj.org/article/020ac052051143a8947045e637ce6a59
Publikováno v:
Fishes, Vol 8, Iss 3, p 161 (2023)
Fish biomass and stock assessment are estimated from acoustic volume backscattering strengths (Sv) obtained from various hydroacoustic equipment. Although sound attenuation due to fish schools and water influences the Sv value, only attenuation from
Externí odkaz:
https://doaj.org/article/e0ae046c065b4545aca4c29175f31609
Akademický článek
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Akademický článek
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Publikováno v:
Sensors, Vol 22, Iss 5, p 1812 (2022)
Acoustic Doppler current profilers (ADCPs) were developed to acquire water current velocities, as well as depth-dependent echo intensities. As the backscattering strength of an underwater object can be estimated from the measured echo intensity, the
Externí odkaz:
https://doaj.org/article/8d6680fdacf8499d8c72364fb88d0181
Autor:
Karolina Trzcinska, Jaroslaw Tegowski, Pawel Pocwiardowski, Lukasz Janowski, Jakub Zdroik, Aleksandra Kruss, Maria Rucinska, Zbigniew Lubniewski, Jens Schneider von Deimling
Publikováno v:
Remote Sensing, Vol 13, Iss 23, p 4771 (2021)
Acoustic seafloor measurements with multibeam echosounders (MBESs) are currently often used for submarine habitat mapping, but the MBESs are usually not acoustically calibrated for backscattering strength (BBS) and cannot be used to infer absolute se
Externí odkaz:
https://doaj.org/article/dd0e3488879b41e3bbaa8bb84477b464