@article{fdi:010082086,
  title = {{S}uspended sediment concentration field quantified from a calibrated {M}ulti{B}eam {E}cho{S}ounder},
  author = {{F}romant, {G}. and {L}e {D}antec, {N}. and {P}errot, {Y}annick and {F}loc'h, {F}. and {L}ebourges {D}haussy, {A}nne and {D}elacourt, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}coustic scattering can be used to estimate {S}uspended {S}ediment {C}oncentration ({SSC}) through acoustic inversion methods. {C}urrent {SSC} quantification methods are mostly unable to observe both spatial and temporal variations. {H}ere, we assess the possibility to measure both using a {M}ultibeam {E}chosounder ({MBES}). {MBES} combine a large spatial covering in the water column and the capability to measure on route', allowing a better representativity of the measurements. {T}ime-series of raw {EM}3002-{MBES} data at 300 k{H}z were acquired during a 5-hours field experiment at a fixed location in the {A}ulne macrotidal estuary ({F}rance) during ebb, ensuring sufficient {SSC} variations. {C}oncurrently, 4-frequencies {A}coustic {B}ackscattering {S}ystem ({ABS}) profiles were acquired in the water column, as well as turbidity profiles, further converted into {SSC} using collected water samples. {A}n original in-situ calibration was performed on the {MBES}, using a tungsten sphere of known properties, which allowed corrections to be made to the volume backscattered levels over the echosounder fan. {U}sing {ABS}-derived equivalent radii, the {MBES} backscattered signal was inverted to retrieve an {SSC} estimate. {G}ood consistency between {MBES} time-series observations and turbidity-derived {SSC} is observed. {T}his experiment demonstrates the potential use of {MBES} for 3-dimensional turbidity observations in coastal areas, which is of great interest for sediment flux quantification.},
  keywords = {{A}coustic backscattering ; {M}ultifrequency acoustics ; {S}uspended sediments concentration ; {A}coustic inversion ; {M}ulti{B}eam {E}cho{S}ounder ; {FRANCE} ; {BREST} {BAIE} ; {TERENEZ} ; {AULNE} {ESTUAIRE}},
  booktitle = {},
  journal = {{A}pplied {A}coustics},
  volume = {180},
  numero = {},
  pages = {108107 [14 ]},
  ISSN = {0003-682{X}},
  year = {2021},
  DOI = {10.1016/j.apacoust.2021.108107},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082086},
}