MOVIES3D example dataset

Date 2022-03-02
Temporal extent 2013-04-28 -2013-04-28
Author(s) Doray MathieuORCID1, Duhamel Erwan1, Sanchez FlorenceORCID1, Berger LaurentORCID1
Affiliation(s) 1 : Ifremer, France
DOI 10.17882/58652
Publisher SEANOE
Keyword(s) fisheries acoustic data, Bay of Biscay, PELGAS, spring, small pelagic fish

This dataset presents fisheries acoustic data in both proprietary Simrad raw format and international HAC format recorded onboard R/V Thalassa on 28/04/2013 between 14:56 and 15:16 GMT near the continental shelf edge in Southern Bay of Biscay. Data include typical small pelagic fish schools composed of anchovy and sardine encountered in springtime in this area.

The dataset has also been converted to international Sonar-netCDF4 format described at :

HAC files can be displayed and processed using e.g. the MOVIES3D freeware provided by Ifremer at:

Sonar-netCDF4 files can be displayed using standard netCDF viewers and Python notebooks available at :

Licence CC-BY-NC-SA
Acknowledgements PELGAS surveys have been funded by the European Common Fishery Policy Data Collection Framework, the Marine Strategy Framework Directive, and Ifremer. We want to acknowledge the joint efforts of R/V Thalassa crews and PELGAS scientists that made the survey possible.
Sensor metadata

Data were collected during the PELGAS2013 survey using: i) a Simrad EK60 echosounder equiped with 6 vertically oriented transducers operating at the 18, 38, 70, 120, 200 and 333 kHz frequencies, ii) a Simrad EK60 echosounder equiped with 1 horizontally oriented transducer (to starboard side) operating at the 120 kHz frequency, and iii) a Simrad ME70 multibeam echosounder. Echosounders were pinging every 0.6 s operated using a 1 ms pulse length. Other operating parameters can be obtained from the Sonar-netCDF4 files.

File Size Format Processing Access
International Hydroacoustic exchange format HAC 475 MB International Hydroacoustic exchange format HAC Quality controlled data Open access
Sonar-Netcdf format 310 MB Sonar-Netcdf Quality controlled data Open access
Proprietary Simrad raw format 267 MB proprietary Simrad raw format Raw data Open access
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How to cite 

Doray Mathieu, Duhamel Erwan, Sanchez Florence, Berger Laurent (2022). MOVIES3D example dataset. SEANOE.