• 제목/요약/키워드: SDWBA model

검색결과 1건 처리시간 0.015초

SDWBA 모델을 이용한 남극 크릴과 아이스 크릴의 반사강도 연구 (Target strength of Antarctic krill and ice krill using the SDWBA model)

  • 손우주;나형술;오우석;주종민
    • 수산해양기술연구
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    • 제58권4호
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    • pp.352-358
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    • 2022
  • We explored the frequency response of krill target strength (TS) to understand the Antarctic krill (Euphausia superba) and ice krill (Euphausia crystallorophias) using the stochastic distorted-wave Born approximation (SDWBA) model. The results showed that the distribution of orientation and the fatness factor could significantly impact on the frequency response of TS. Krill TS is clearly depended on acoustic properties, which could affect to estimate the biomass of two krill species. The results provide insight into the importance of understanding TS variation to estimate the Antarctic krill and ice krill biomass, and their ecology related to the environmental features in the Southern Ocean.