Study on volume backscattering strength in summer marginal ice zone of Canada Basin

Liu Hongning; L&#252; Lian'gang; Liu Na; Yang Guangbing; Jiang Ying; Yang Chunmei; Liu Zongwei; Lin Li'na

doi:10.3969/j.issn.0253-4193.2015.11.012

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Liu Hongning, Lü Lian'gang, Liu Na, Yang Guangbing, Jiang Ying, Yang Chunmei, Liu Zongwei, Lin Li'na. Study on volume backscattering strength in summer marginal ice zone of Canada Basin[J]. Haiyang Xuebao, 2015, 37(11): 127-134. doi: 10.3969/j.issn.0253-4193.2015.11.012

Citation:

Liu Hongning, Lü Lian'gang, Liu Na, Yang Guangbing, Jiang Ying, Yang Chunmei, Liu Zongwei, Lin Li'na. Study on volume backscattering strength in summer marginal ice zone of Canada Basin[J]. Haiyang Xuebao, 2015, 37(11): 127-134. doi: 10.3969/j.issn.0253-4193.2015.11.012

Citation:

Liu Hongning, Lü Lian'gang, Liu Na, Yang Guangbing, Jiang Ying, Yang Chunmei, Liu Zongwei, Lin Li'na. Study on volume backscattering strength in summer marginal ice zone of Canada Basin[J]. Haiyang Xuebao, 2015, 37(11): 127-134. doi: 10.3969/j.issn.0253-4193.2015.11.012

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Study on volume backscattering strength in summer marginal ice zone of Canada Basin

doi: 10.3969/j.issn.0253-4193.2015.11.012

First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Key Laboratory of Marine Science and Numerical Modeling, State Oceanic Administration, Qingdao 266061, China

Received Date: 2015-04-15

Abstract

Abstract

Volume backscatter strength (Sv) is a key parameter for acoustic transmission. Study on volume backscattering strength in marginal ice zone (MIZ) in the Arctic plays an important role in the knowledge of the Arctic acoustic environment. Based on the investigation during the Sixth Chinese National Arctic Research Expedition in summer 2014, the characteristics of backscatter strength in MIZ are analyzed. The results show that Sv under the open water (ice concentration less than 15%) is significantly higher than that in seawater under the packed ice (ice concentration more than 50%). Ice melt causes increasing of opaque creatures and suspended sediment, and leads to increase of Sv. According to the characteristics of low Sv under the packed ice, the proposal about the parameters of LADCP setting is given.
- volume backscattering strength,
- marginal ice zone,
- Canada Basin

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References(14)

References

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