Acoustic Capabilities of Existing Observing Systems

Locations of civilian hydrophones potentially useful to study effects of the COVID-19 pandemic on ocean sound and other acoustic characteristics of the ocean are shown here, as of 8 February 2021. Figure by Eduardo Klein of the Universidad Simón Bolívar, Caracas, Venezuela.

Acronym Definitions

Cabled Systems

relates to time synchrony between elements and between the GPS time. specifies the time interval between data downloads. is the depth at which the sensors are located. indicates whether or not the acoustic system is calibrated. highlights other data available or planned from the same region of the acoustic sensors. conveys how accessible the data are to the public. refers to the original and/or current sponsor providing funding support for the system. indicates the societal purpose for which the system was originally designed reports the years of system installation and projected life expectancy of the system.
Title Geographical Scale Location Latitude Longitude Human Activity Natural Activity Projected Change Acoustics Operational Units (Auto) Mode (Mobile) Frequency Bandwith Directionality Time Synch/Precision Duty Cycle Data Downloads # Elements Depth Calibrated Ancillary Data Data Availability Integration Possibility Sponsorsort descending Society Value Installation Life Expectancy Audio Clips
ANTARES 50 km Ligurian Sea 43.085 5.212 seismic, shipping, Navy geophysical, whales Yes 100 Hz-125 kHz omni ms continuous continuous 36 2000 m (bottom) Yes telescope upon request Yes ANTARES collaboration Neutrino Observatory 2000 + decades
CTBTO basin Wake Island-North 19.713 166.891 Yes 1-100 Hz H continuous continuous 6 (2 triads) 750m Yes no approval needed No CTBTO nuclear monitoring early 2000s + decades
CTBTO basin Ascension Island-North -7.845 -14.480 Yes 1-100 Hz H continuous continuous 6 (2 triads) 850 m Yes no approval needed No CTBTO nuclear monitoring early 2000s + decades
CTBTO basin Juan Fernandez Island-North -33.449 -78.938 low Yes 1-100 Hz H continuous continuous 6 (2 triads) 824 m Yes no approval needed No CTBTO nuclear monitoring early 2000s + decades
CTBTO basin Crozet Island-North -46.180 51.590 low Yes 1-100 Hz H continuous continuous 6 (2 triads) 541 m Yes no approval needed No CTBTO nuclear monitoring early 2000s + decades
CTBTO basin Wake Island-South 18.508 166.702 Yes 1-100 Hz H continuous continuous 6 (2 triads) 750 m Yes no approval needed No CTBTO nuclear monitoring early 2000s + decades
CTBTO basin Juan Fernandez Island-South -33.823 -78.846 Yes 1-100 Hz H continuous continuous 6 (2 triads) 830 m Yes no approval needed No CTBTO nuclear monitoring early 2000s + decades
CTBTO basin Crozet Island-South -46.885 51.794 Yes 1-100 Hz H continuous continuous 6 (2 triads) 535 m Yes no approval needed No CTBTO nuclear monitoring early 2000s + decades
CTBTO basin Diego Garcia-South -7.645 72.474 Yes 1-100 Hz H continuous continuous 6 (2 triads) 1350 m Yes no approval needed Yes CTBTO nuclear monitoring early 2000s + decades
CTBTO basin Ascension Island-South -8.941 -14.648 Yes 1-100 Hz H continuous continuous 6 (2 triads) 850 m Yes no approval needed No CTBTO nuclear monitoring early 2000s + decades
CTBTO basin Cape Lewin -34.892 114.153 Yes 1-100 Hz H continuous continuous 3 (1 triad) 1100 m Yes no approval needed, https://www.ctbto.org/ No CTBTO nuclear monitoring early 2000s + decades
MBARI MARS coastal Monterey Bay 36.713 -122.186 research and public education/outreach Yes continuous 890 m MBARI biodiversity, ecosystems, geo-hazards
ALOHA Cabled Observatory basin Hawaii 22.75 -158.00 ambient sound Yes 0.014Hz - 8kHz omni continuous continuous 1 4728m (bottom) Yes HOT site open, http://aco-ssds.soest.hawaii.edu/ Yes NSF exploration 2011 + decades

Fixed Autonomous Systems

relates to time synchrony between elements and between the GPS time. specifies the time interval between data downloads. is the depth at which the sensors are located. indicates whether or not the acoustic system is calibrated. highlights other data available or planned from the same region of the acoustic sensors. conveys how accessible the data are to the public. refers to the original and/or current sponsor providing funding support for the system. indicates the societal purpose for which the system was originally designed reports the years of system installation and projected life expectancy of the system.
Title Geographical Scale Location Latitude Longitude Human Activity Natural Activity Projected Change Acoustics Operational Units (Auto) Mode (Mobile) Frequency Bandwith Directionality Time Synch/Precision Duty Cycle Data Downloads # Elements Depth Calibrated Ancillary Data Data Availability Integration Possibility Sponsorsort descending Society Value Installation Life Expectancy Audio Clips
Univ. of Iceland (Krossanes A) regional 64.889 -9.0457 odontocetes Yes 1-40 kHz 5 min/15 min (33%) 2500 m biodiversity, ecosystems
Univ. of Iceland (Langanes NE) regional 67.266 -13.366 anthropogenic noise odontocetes Yes 1-40 kHz 5 min/15 min (33%) 1500 m biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Mote I) coastal West Coast of Florida 27.336 -82.577 odontocetes Yes 0.172 - 20 kHz continuous < 10 m biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Tarawitt) coastal West Coast of Florida 27.419 -82.655 odontocetes Yes 0.172 - 20 kHz continuous < 10 m biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Palma Sola) coastal West Coast of Florida 27.476 -82.692 odontocetes Yes 0.172 - 20 kHz continuous biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Mote II) coastal West Coast of Florida 27.334 -82.579 odontocetes Yes 0.172 - 20 kHz continuous < 10 m biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Sarasota Bay) coastal West Coast of Florida 27.316 -82.545 odontocetes Yes 0.172 - 20 kHz continuous < 10 m biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Siesta Key) coastal West Coast of Florida 27.271 -82.543 odontocetes Yes 0.172 - 20 kHz continuous < 10 m
Sarasota Bay Passive Acoustic Listening Network (Bayou Hammock) coastal West Coast of Florida 27.432 -82.676 odontocetes Yes 0.172 - 20 kHz continuous biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Bay Harbour) coastal West Coast of Florida 27.340 -82.591 odontocetes Yes 0.172 - 20 kHz continuous < 10 m biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (San Remo) coastal West Coast of Florida 27.300 -82.519 odontocetes Yes 0.172 - 20 kHz continuous < 10 m biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Spanish Point) coastal West Coast of Florida 27.204 -82.500 odontocetes Yes 0.172 - 20 kHz continuous biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Tidy Island -Bay Hollow) coastal West Coast of Florida 27.451 -82.651 odontocetes Yes 0.172 - 20 kHz continuous < 10 m biodiversity, ecosystems
Sarasota Bay Passive Acoustic Listening Network (Bay Hollow) coastal West Coast of Florida 27.451 -82.651 odontocetes Yes 0.172 - 20 kHz continuous < 10 m biodiversity, ecosystems
Wildlife Conservation Society (Sachs Harbour 2020) coastal Arctic Ocean 71.871 -125.484 mysticetes, odontocetes, pinnipeds Yes biodiversity, ecosystems
NRS12 coastal Buck Island Reef National Monument, U.S. Virgin Islands (US VI) 17.79 -64.65 mysticetes, odontocetes, pinnipeds, whales Yes 40 m open NOAA & NPS biodiversity, ecosystems
NRS01 coastal Alaskan Arctic 72.44 -156.55 odontocetes, pinnipeds, whales Yes 500 m open NOAA/AFSC biodiversity, ecosystems
NRS11 coastal Cordell Bank Coast National Marine Sanctuary 37.88 -126.44 mysticetes, odontocetes, pinnipeds, whales Yes 500 m open NOAA/CBNMS biodiversity, ecosystems
NRS08 coastal Northeastern continental U.S. (NE US) 39.01 -67.27 mysticetes, odontocetes, pinnipeds, whales Yes 900 m open NOAA/NEFSC biodiversity, ecosystems
NRS03 coastal Olympic Coast National Marine Sanctuary 47.77 -125.52 mysticetes, odontocetes, pinnipeds Yes 488 m NOAA/NWFSC & NOAA/OCNMS biodiversity, ecosystems
NRS04 coastal Hawaiian Islands 22.33 -157.67 mysticetes, odontocetes, pinnipeds, whales Yes 900 m open NOAA/PIFSC biodiversity, ecosystems
NRS02 coastal Gulf of Alaska 50.25 -145.13 mysticetes, odontocetes, pinnipeds Yes 500 m NOAA/PMEL biodiversity, ecosystems
NRS09 coastal Stellwagen Bank National Marine Sanctuary 42.4 -70.13 mysticetes, odontocetes, pinnipeds, whales Yes 79 m open NOAA/SBNMS biodiversity, ecosystems
NRS06 coastal Gulf of Mexico 28.25 -86.83 mysticetes, odontocetes, pinnipeds, whales Yes 900 m open NOAA/SEFSC biodiversity, ecosystems
NRS07 coastal Southeastern continental U.S. (SE US) 29.33 -77.99 mysticetes, odontocetes, pinnipeds, whales Yes 900 m open NOAA/SEFSC biodiversity, ecosystems
NRS05 coastal Channel Islands National Marine Sanctuary 33.9 -119.58 mysticetes, odontocetes, pinnipeds, whales Yes 900 m open NOAA/SWFSC biodiversity, ecosystems
NRS10 coastal Tutuila Island, National Park of American Samoa -14.27 -170.72 mysticetes, odontocetes, whales Yes 33 m open NPS & NPAS biodiversity, ecosystems