Laboratory Experiment to Measure 5-MHz Volume Backscattering Strengths from Red-tide causing Microalgae Chattonella antiqua
- Authors
- Kim, Junghun; Choi, Jee Woong; Kang, Donhyug
- Issue Date
- Sep-2012
- Publisher
- 한국해양과학기술원
- Keywords
- acoustic volume backscattering strengths; Chattonella antiqua; density and sound speed ratios; fluid-sphere scattering model; harmful algal bloom
- Citation
- Ocean Science Journal, v.47, no.3, pp.173 - 179
- Indexed
- SCOPUS
KCI
- Journal Title
- Ocean Science Journal
- Volume
- 47
- Number
- 3
- Start Page
- 173
- End Page
- 179
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/32161
- DOI
- 10.1007/s12601-012-0017-3
- ISSN
- 1738-5261
- Abstract
- An acoustic laboratory experiment using 5-MHz signals was conducted to measure the volume backscattering strengths of red-tide causing microalgae, Chattonella antiqua, which is one of the species of harmful algal blooms in the coastal waters of Korea and Japan. The measured backscattering strengths increased with cell abundance, with a slope of approximately 10 dB per decade increase in cell numbers. The density and sound speed ratios of the Chattonella cell to the water medium were estimated via the density gradient centrifugation method and the time-travel difference method, respectively. Finally, the measured backscattering strengths were compared to those predicted by a fluid-sphere scattering model, in which the estimated sound speed and density contrasts were used as input parameters.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF MARINE SCIENCE AND CONVERGENCE ENGINEERING > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.