The dataset includes underwater acoustic data and vessel labels derived from AIS (Automatic Identification System) information from AISHub. Recordings were made at Grafton Station (51.40666°N, 2.819°E) in the Belgian part of the North Sea using RESEA 320 recorders (RTSys, France) together with Colmar GP1190M-LP hydrophones (Colmar, Italy, sensitivity: -180 dB/V re 1μPa, frequency range −3 dB: 10 Hz to 170 kHz), attached to steel mooring frames at 1 m above the sea bottom, with no moving parts. Duty cycle was set to 24h on, 24h off, leading to five non-consecutive recordings days: October 28, October 30, November 1, November 3, and November 5, 2022. These data enable analysis of marine acoustic environments in relation to nearby ship traffic.
","EngDescr":"Each day comprises 142 WAV files, each lasting 10 minutes and 13 seconds, providing nearly 24 hours of continuous audio per day. The accompanying Excel file provides vessel metadata recorded during these periods. Each row represents an AIS event and includes: ship_number, longitude, latitude, event_time, type, distance (to the station), msg_type_description, and sog (Speed Over Ground). The AIS is collected from a +/- 15 KM range from the hydrophone location. These data are a collection of annotations from audio files from the Belgian Part of the North Sea, compiled as part of the LifeWatch Broadband Acoustic Network. The dataset is well-suited for research on passive acoustic monitoring, vessel noise characterization, and for training or evaluating models that link acoustic signals to maritime traffic patterns.
","OrigAbstract":null,"OrigDescr":null,"Comments":null,"ReleaseDate":null,"ReleaseDate0":null,"OrigDescrLang":null,"EmbargoDate":null,"OrigDescrLangNL":null,"OrigLangCode":null,"OrigLangCodeExtended":null,"OrigLangID":null,"DescrCompFlag":null,"DescrTransFlag":null,"Citation":"Decrop, W.; Parcerisas, C.; Debusschere, E.; Flanders Marine Institute: Belgium; (2025): Subset of acoustic data with AIS labels deployment from Grafton station in the Belgian Part of the North Sea, recorded in fall 2022. Marine Data Archive.","AccessConstraints":"Data are not to be used for any military purposes. Please use contact information to request the data or for more information on the restrictions that apply to the data.","UDate":"2026-04-02","CDate":"2025-05-12","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-04-02 11:52:55.658175","timezone_type":1,"timezone":"+02:00"},"CheckedFlag":1,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":null,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Data collection","Progress":"Completed","AccessConstraint":"The data can be made available upon request, please use contact information.","AccConstrEN":"The data can be made available upon request, please use contact information.","AccConstrDisplay":null,"License":null,"AccConstrDescription":null,"Lineage":null,"AccConID":28},"dois":[{"DOIID":1186,"PublicationYear":2025,"DOI":"10.14284/748","Citation":"Decrop, W.; Parcerisas, C.; Debusschere, E.; Flanders Marine Institute: Belgium; (2025): Subset of acoustic data with AIS labels deployment from Grafton station in the Belgian Part of the North Sea, recorded in fall 2022. Marine Data Archive.","MDAID":null,"Moratorium":0,"MDAURL":null,"CurrentDOI":1,"Active":1,"URL":null,"downloadURL":null}],"spcols":null,"keywords":[{"ThesaurusTerm":"Acoustic data","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_54b338c3","Description":null,"OrigThesTerm":"Acoustic data","DutchTerm":null,"URI":"http://aims.fao.org/aos/agrovoc/c_54b338c3","DasKeywordDescr":null},{"ThesaurusTerm":"AIS (Automatic Identification System)","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"AIS (Automatic Identification System)","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Hydrophones","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_2283ec53","Description":null,"OrigThesTerm":"Hydrophones","DutchTerm":"Hydrofonen","URI":"http://aims.fao.org/aos/agrovoc/c_2283ec53","DasKeywordDescr":null},{"ThesaurusTerm":"Shipping noise","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_65cf8212","Description":null,"OrigThesTerm":"Shipping noise","DutchTerm":null,"URI":"http://aims.fao.org/aos/agrovoc/c_65cf8212","DasKeywordDescr":null},{"ThesaurusTerm":"Vessel noise","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Vessel noise","DutchTerm":"","URI":null,"DasKeywordDescr":null}],"parents":[{"DasID":7879,"Acronym":"PhD_Parcerisas","EngAbstract":"Underwater Acoustic Network recording continuously from 10 Hz to 50 kHz, covering most of geophonic sounds, anthropogenic noise and biophonic events in the Belgian Part of the North Sea.
","License":"https://creativecommons.org/licenses/by/4.0/","StandardTitle":"Broadband Acoustic Network dataset","doi":null,"vlizDoi":null},{"DasID":8929,"Acronym":null,"EngAbstract":"This dataset contains underwater acoustic recordings with associated AIS-based vessel metadata, collected from Grafton and GardenCity Station in the Belgian part of the North Sea. Data were recorded over five non-consecutive days in 2022 and enable analysis of marine acoustic environments in relation to nearby ship traffic.
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