<i>In-situ</i> calibration of acoustic measurement of suspended sediment

Guo Jijie; Ren Laifa; Li Yunwu

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Guo Jijie, Ren Laifa, Li Yunwu. In-situ calibration of acoustic measurement of suspended sediment[J]. Haiyang Xuebao, 1998, 20(5): 120-125.

Citation:

Guo Jijie, Ren Laifa, Li Yunwu. In-situ calibration of acoustic measurement of suspended sediment[J]. Haiyang Xuebao, 1998, 20(5): 120-125.

Guo Jijie, Ren Laifa, Li Yunwu. In-situ calibration of acoustic measurement of suspended sediment[J]. Haiyang Xuebao, 1998, 20(5): 120-125.

Citation:

Guo Jijie, Ren Laifa, Li Yunwu. In-situ calibration of acoustic measurement of suspended sediment[J]. Haiyang Xuebao, 1998, 20(5): 120-125.

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In-situ calibration of acoustic measurement of suspended sediment

1.
Institute of Ocean Technology, State Oceanic Administration, Tianjin 300111
2.
Shanghai Acoustics Laboratory, Chinese Academy of Sciences, Shanghai 200032

Received Date: 1998-02-19
Rev Recd Date: 1998-03-15

Abstract

Abstract

The key to the problem of probing the concentration of suspended sediment in water and its variation with acoustic equipment is how to calibrate the obtained data. Combining the acoustic backscatter intensity data with the real concentration of suspended sediment from water samples collected from the Changjiang River Estuary. three in-situ calibration methods for transforming measured sediment are induced. Results show that the discrepancies between calibrated values given by characteristic times calibration and real ones are less than the values given by single shot method, and the statistical error is 20% approximately. Calibration on characteristic times can be more simple and practice than synchronic calibration.
- Suspended sediment,
- acoustic probing,
- in-situ calibration

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References(8)

References

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