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    • unit_4-20140910T1800

    Metadata Updated: September 27, 2025

    Shipboard observations of marine mammal distribution and habitat are expensive and logistically challenging to collect in Arctic waters. Port facilities are minimal and access to appropriate vessels for spending extended periods of time at sea is extremely limited. Autonomous platforms like gliders provide the capability to collect both oceanographic and passive acoustic data for far longer periods of time (weeks to months) and at significantly reduced costs than traditional shipboard or aerial surveys. We have developed a system to record, detect, classify, and remotely report Arctic and sub-Arctic marine mammal calls in real time from Slocum ocean gliders based on the digital acoustic monitoring (DMON) instrument and the low-frequency detection and classification system (LFDCS). The system was successfully demonstrated for Arctic research during three AOOS-funded studies in the Chukchi Sea during September 2013 and 2014 and from 11 July – 8 September 2015. The joint acoustic-oceanographic data were used to examine the distribution, occurrence, and habitat of marine mammals using in-situ passive acoustic and oceanographic data collected by the glider, and to demonstrate the near real-time detection and reporting capability of the system.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date September 19, 2025
    Metadata Created Date June 14, 2024
    Metadata Updated Date September 27, 2025
    Reference Date(s) February 7, 2018 (creation), February 7, 2018 (issued)
    Frequency Of Update

    Metadata Source

    Harvested from ioos

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 19, 2025
    Metadata Created Date June 14, 2024
    Metadata Updated Date September 27, 2025
    Reference Date(s) February 7, 2018 (creation), February 7, 2018 (issued)
    Responsible Party University of Alaska Fairbanks, College of Fisheries and Ocean Sciences (Point of Contact)
    Contact Email
    Guid unit_4-20140910T1800
    Access Constraints
    Bbox East Long -160.15236
    Bbox North Lat 71.60716
    Bbox South Lat 71.18811
    Bbox West Long -162.46667
    Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
    Frequency Of Update
    Harvest Object Id d461a258-43ea-4404-83fc-f158825fb878
    Harvest Source Id 54e15a6e-6dde-4c9c-a8f0-345cc0dfccfb
    Harvest Source Title ioos
    Licence
    Lineage 2018-02-07T18:11:41Z - Created with the GUTILS package: "convert.py"%standard names for qartod flags have changed on 2022-07-01
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-162.46667, 71.18811], [-160.15236, 71.18811], [-160.15236, 71.60716], [-162.46667, 71.60716], [-162.46667, 71.18811]]]}
    Progress
    Spatial Data Service Type ERDDAP tabledap
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2014-09-09T19:02:23Z
    Temporal Extent End 2014-09-21T07:42:12Z

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