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| Global Passive Acoustic Monitoring Network | |
|---|---|
| Name | Global Passive Acoustic Monitoring Network |
| Caption | Distributed hydrophones and terrestrial recorders in global arrays |
| Established | 2000s |
| Focus | Passive acoustic monitoring, bioacoustics, ambient noise, marine mammal monitoring |
| Headquarters | Distributed |
Global Passive Acoustic Monitoring Network The Global Passive Acoustic Monitoring Network is a loose assemblage of coordinated hydrophone arrays, terrestrial recorders, and data centers that facilitates long-term, autonomous acoustic observation across marine, freshwater, and terrestrial environments. It links institutional programs, observatories, research vessels, and laboratories to support bioacoustic research, oceanography, biodiversity assessment, and anthropogenic-noise regulation. Major participants include observatories, universities, research institutes, and conservation organizations collaborating across international programs, treaties, and funding agencies.
The network integrates long-term infrastructure such as the Ocean Observatories Initiative, International Quiet Ocean Experiment, Integrated Marine Biosphere Research (IMBeR), Arctic Council member projects, and regional initiatives like PICES, ICES, SPAW-RAC, and AMAP. It builds on legacy programs including NOAA soundscapes, Scripps Institution of Oceanography hydrophone studies, Woods Hole Oceanographic Institution deployments, and datasets from Monterey Bay Aquarium Research Institute and Alfred Wegener Institute. Key institutional partners encompass Smithsonian Institution, British Antarctic Survey, CSIRO, GEOMAR Helmholtz Centre for Ocean Research Kiel, and university centers such as University of Washington and University of Tasmania. Funding and policy interfaces involve European Commission research frameworks, National Science Foundation, NASA Earth science programs, and bilateral agreements like the U.S.–Canada Transboundary Waters Treaty.
Architecture combines fixed moorings from NEPTUNE Canada, cabled observatories like Lifelines Project, mobile platforms aboard vessels from RV Atlantis and RV Investigator, and gliders used by WHOI and MBARI. Recorder technologies derive from manufacturers and labs such as Ocean Instruments, JASCO Applied Sciences, Kongsberg Maritime, and custom units from Scripps Institution of Oceanography. Standards and protocols reference organizations like International Telecommunication Union, ISO, and data models influenced by OGC standards, while metadata frameworks borrow from GFZ German Research Centre for Geosciences and GEOSS. Time-synchronization relies on GPS and precision timing services used by observatories including Scripps and Woods Hole. Signal processing hardware interfaces with software stacks maintained by MATLAB groups at MIT, Cornell University bioacoustics labs, and open-source platforms developed at Xeno-canto contributors and Cornell Lab of Ornithology.
Deployments occur through collaborations with research vessels such as RV Polarstern, RV Sonne, and RV Le Suroît, and via coastal stations run by institutions like NOAA Pacific Marine Environmental Laboratory, NIWA, and IFREMER. Arrays include deep-sea hydrophones from AROONA projects, coastal SMART buoys used by MBARI, glider missions coordinated with SeaGlider programs, and terrestrial recorders deployed by British Trust for Ornithology and BirdLife International. Data collection campaigns align with international events like Census of Marine Life, IPCC field studies, and IWC monitoring efforts. Collaborative tagging and acoustic telemetry merge with programs from OBIS-SEAMAP, Tagging of Pacific Pelagics (TOPP), and regional fisheries agencies like ICES.
Data ingestion and archival are managed by repositories including PANGAEA, EMODnet, OBIS, BODC, and institutional archives at NOAA National Centers for Environmental Information and British Oceanographic Data Centre. Processing pipelines use toolsets from Kaggle-hosted competitions, machine-learning frameworks maintained by Google Research and Facebook AI Research, and academic packages from University of Oxford and ETH Zurich. Automated detection and classification draw on models trained in collaborations with DeepMind, OpenAI research collaborations, and university labs at UC Berkeley and University of British Columbia. Quality control leverages standards from DataONE and community initiatives such as Global Ocean Observing System and FAIR principles advocated by CODATA. Visualization and dissemination utilize dashboards developed by Esri partners, portals at GEOSS, and publications through journals like Nature Communications, Science Advances, and PLoS Biology.
Applications span marine mammal monitoring in studies with IWC and WWF; fish population acoustics tied to ICCAT and CCAMLR assessments; seismic and geophysical monitoring linked to USGS and IPGP; and noise impact studies informing IMO shipping guidelines and UN Convention on the Law of the Sea deliberations. Terrestrial applications involve avian monitoring for RSPB and Cornell Lab of Ornithology conservation, amphibian surveys coordinated with IUCN Red List assessments, and insect soundscape studies supported by Royal Society grants. Cross-disciplinary science includes soundscape ecology advanced by researchers at Yale University, University of California Santa Cruz, and University of St Andrews, and climate-related acoustic proxies used in collaborations with IPCC authors and paleoclimate groups at Lamont–Doherty Earth Observatory.
Governance is polycentric, involving intergovernmental bodies like UNESCO Intergovernmental Oceanographic Commission, regional science bodies such as IOC, and national agencies including NOAA, DEFRA, DFO Canada, and CSIRO policy units. Collaborative frameworks are implemented through memoranda between institutions such as Scripps/WHOI consortia, international working groups under IUCN, and community-driven networks like Citizen Science Association partnerships exemplified by eBird and acoustic citizen projects from Zooniverse. Policy uptake has influenced regulations by IMO, national environmental agencies, and conservation NGOs including WWF and The Nature Conservancy.
Challenges include interoperability gaps addressed by IEEE and ISO working groups, data sovereignty issues intersecting with United Nations data governance debates, funding sustainability through agencies like NSF and European Research Council, and sensor reliability under extreme conditions studied by WHOI and Alfred Wegener Institute. Future directions emphasize integration with satellite remote sensing from ESA and NOAA, synergy with autonomous surface vessels developed by DARPA and Ocean Infinity, and enhanced AI-driven analysis through partnerships with DeepMind and university consortia like INRIA. Emerging priorities involve informing international agreements such as Biodiversity Beyond National Jurisdiction negotiations and contributing acoustic indicators to UN sustainable development monitoring.
Category:Passive acoustic monitoring Category:Bioacoustics Category:Oceanography