MOVIES3D example dataset
|Temporal extent||2013-04-28 -2013-04-28|
|Author(s)||Doray Mathieu1, Duhamel Erwan1, Sanchez Florence1, Berger Laurent1|
|Affiliation(s)||1 : Ifremer, France|
|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 : https://github.com/ices-publications/SONAR-netCDF4
HAC files can be displayed and processed using e.g. the MOVIES3D freeware provided by Ifremer at: http://flotte.ifremer.fr/fleet/Presentation-of-the-fleet/Logiciels-embarques/MOVIES
Sonar-netCDF4 files can be displayed using standard netCDF viewers and Python notebooks available at : https://gitlab.ifremer.fr/fleet/formats/pySonar-netcdf
|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.|
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.