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Acoustic data collected from a glider deployment in the North Sea in June-July 2021 as part of the EU Marine Robots (EUMR) project.

Update Frequency: Not Planned
Latest Data Update: 2021-11-26
Status: Ongoing
Online Status: ONLINE
Publication State: Citable
Publication Date: 2021-12-01
DOI Publication Date: 2021-12-16
Download Stats: last 12 months
Dataset Size: 39.95K Files | 231GB


This dataset consists of acoustic data collected using an icListen Smart Hydrophone (model SC35-ETH) integrated into an iRobot M1 Seaglider during a campaign in the North Sea, west of Ireland. The glider was deployed from 22nd June to 25th July 2021 as the sole glider in the campaign on behalf of the EU Marine Robots (EUMR) project. The acoustics data are provided as both raw acoustic waveform (.WAV format) files, and spectral analyses of the data (as ascii .txt files). Once the glider was recovered, the acoustics data were transferred directly from the glider and so no post processing has been completed.
An error in the instrument system led to an error in the timestamps on the data files. The first waveform was started at 2021-06-27 12:29:42, and this was recorded as 2010-01-01 00:02:30. The timestamps for all filenames and the timestamps of all records in the spectral files have been corrected for this time offset. All the filename name changes are provided in the timestamp_logs directory. In addition, some spectral files were not closed correctly and held multiple records. These files have been split into new files and timestamps corrected accordingly. The details of the new files generated are given in the SBF_recover.txt log file.
The environmental, positional and engineering parameters collected alongside the acoustic data are available through the British Oceanographic Data Centre (BODC) using the ERDDAP tool below.

Citable as:  Hayes, D.; Abdi, E. (2021): Acoustic data collected from a glider deployment in the North Sea in June-July 2021 as part of the EU Marine Robots (EUMR) project.. NERC EDS British Oceanographic Data Centre NOC, 16 December 2021. doi:10.5285/096690aba290452d9b7208133274b69b.
Abbreviation: Not defined
Keywords: Ocean gliders, Acoustic waveforms, Ambient noise, Acoustic spectra


Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Acoustics data were collected by an icListen Smart Hydrophone (SC35-ETH) mounted on an iRobot M1 Seaglider deployed in the North Sea. Data were transferred from the glider to a hard drive and then submitted to the British Oceanography Data Centre (BODC, NOC). timestamps included in the files and filenames were updating according to the ice offset from the data provider. Files containing multiple spectra were split into separate files, with appropriate file names. Data were subsequently archived at CEDA.

Data Quality:
Data are as given by the data provider subject to time stamp updating, no quality control has been performed by the Centre for Environmental Data Analysis (CEDA)
File Format:
Raw acoustic data in WAV format; Spectral analyses of 10 minute segements of the acoustics files in ASCI text format

Process overview

This dataset was generated by instruments deployed on platforms as listed below.
Output Description


No variables found.

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