the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Estimating suspended sediment concentrations using a broadband ADCP in Mahshahr tidal channel
P. Ghaffari
J. Azizpour
M. Noranian
V. Chegini
V. Tavakoli
M. Shah-Hosseini
Abstract. Data sets of Acoustic Doppler Current Profiler (ADCP) backscatter intensities (ABS) were used to evaluate suspended sediment concentrations (SSC) in the Mahshahr Channel (MC) of the Persian Gulf. Since the echo intensity is closely related to turbidity in water, the ADCP may be a promising tool to monitor the sediment transport. The low susceptibility of the acoustic backscatter to bio-fouling and the ADCP provision of current profiles as well as sediment time series makes this monitoring method more advantageous compared with the traditional methods. Time series of ADCP backscatter intensity profiles were used for improving temporal resolution of SSC estimates. Backscatter and traditional observational data were separated into two segments. The first part was utilized for calibrating the backscatter data and attributing the intensity to suspended particle concentrations and using the second part acoustic intensities were validated. Acoustic based SSC estimates are slightly underestimated in comparison with traditional water sample based SSC values, but still there is good agreement between acoustic SSC and traditional observations. Results illustrate a rather high correlation between lab based and acoustic based particles in suspension (R2 = 88 %). Additionally measurements reveal the domination of a semidiurnal ebb asymmetric system in the MC. Tidal currents provide the main energy source for particle resuspension and transport. Maximum suspended load concentrations are evident in ebb tides, while the currents strengths are enough to refloat loads from the bed. In general spring tides show higher SSC values compared with neap tides in the study area.
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P. Ghaffari et al.


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RC C558: 'ADCP mesurements of suspended sediments', Anonymous Referee #1, 19 Aug 2011
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RC C663: 'Anonymous referee's comment', Anonymous Referee #2, 22 Sep 2011


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RC C558: 'ADCP mesurements of suspended sediments', Anonymous Referee #1, 19 Aug 2011
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RC C663: 'Anonymous referee's comment', Anonymous Referee #2, 22 Sep 2011
P. Ghaffari et al.
P. Ghaffari et al.
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Cited
6 citations as recorded by crossref.
- Estimation of Suspended Sediment Concentration by Using Mobile ADCP Instrument A. Dwinovantyo et al. 10.1088/1742-6596/1127/1/012033
- Suspended sediment flux at the Rhone River mouth (France) based on ADCP measurements during flood events I. Sakho et al. 10.1007/s10661-019-7605-y
- Estimation of suspended sediment concentration from Acoustic Doppler Current Profiler (ADCP) instrument: A case study of Lembeh Strait, North Sulawesi A. Dwinovantyo et al. 10.1088/1755-1315/54/1/012082
- Comparison of Acoustic to Optical Backscatter Continuous Measurements of Suspended Sediment Concentrations and Their Characterization in an Agriculturally Impacted River Z. Sirabahenda et al. 10.3390/w11050981
- Quantifying Suspended Sediment using Acoustic Doppler Current Profiler in Tidung Island Seawaters H. Manik & R. Firdaus 10.47836/pjst.29.1.21
- Quantification and Analysis of Suspended Sediments Concentration Using Mobile and Static Acoustic Doppler Current Profiler Instruments A. Dwinovantyo et al. 10.1155/2017/4890421