Seafloor video-acoustic data from Inglefield Bredning Fjord, Northwest Greenland (August 1-9, 2025) - Part C

This dataset contains ~7.5 days of continuous hydroacoustic data from a moored underwater sound recorder, Soundtrap ST600 (sampling at 96 kHz, UTC timestamp, 1-9 Aug 2025), and 3 days of videos recorded by a duty-cycled videocamera with another hydrophone. The dataset was collected as part of the ArCS-3 campaign. It is potentially valuable for bioacoustical and ecological studies, as narwhal sounds and animals were recorded near the sea floor. In addition, acoustic release, Ascent AR, collected water temperature, tilt, noise, and water pressure (at 1 sample per minute). The data is compressed as *.zip files for convenience of downloading. Location: Greenland, Inglefield Bredning Fjord Deployment: 01 Aug 2025 (local evening, 19:56 UTC) The mooring was deployed from a boat with a 50 kg anchor (rocks). GPS and depth: N 77°28.120’, W 66°21.411’, ~260 m water depth Retrieval: 9 Aug 2025 (local afternoon, 15:31 UTC) Sensor and file metadata: Soundtrap ST600 (Ocean Instruments, NZ), #6229, high gain, 96 kHz files: 6229.YYMMDDhhmmss.wav - UTC timestamp Ascent AR, #580383 (Innovasea, Vemco, Canada) files: VUE_Export_Ogasawara.csv (raw: AAR_***.csv, AAR_***.vrl) - UTC timestamp Video camera LoggCAM, Biologging Solutions (Japan), VGA (640×480 px2, 30 fps), 96 kHz files: 0002_2025-08-***.MOV The filename timestamp should be converted to UTC by subtracting 2 h, e.g., 0001_2025-08-01-21h55m00~2025-08-01-22h05m00 corresponds to the start of record on 19:55 UTC and the end of record on 20:05 UTC.