gov.noaa.ncei.pad:PIPAN_200kHz_Raw_Audio eng; USA utf8 series Series NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2025-07-10 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Pacific Islands Passive Acoustic Network (PIPAN) 200 kHz Data 2025-06-26 publication International DOI Foundation (IDF) doi:10.25921/69ge-bc95 NOAA National Centers for Environmental Information NCEI Metadata ID:gov.noaa.ncei.pad:PIPAN_200kHz_Raw_Audio Erin Oleson NOAA/PIFSC Supervisory Research Ecologist 808-725-5712 1601 Kapiolani Boulevard Honolulu HI 96814 USA Erin.Oleson@noaa.gov principalInvestigator NOAA National Centers for Environmental Information publisher Pacific Islands Fisheries Science Center (808) 725-5360 1845 Wasp Boulevard Building 176 Honolulu HI USA pifsc.info@noaa.gov https://www.fisheries.noaa.gov/about/pacific-islands-fisheries-science-center PIFSC website originator The Pacific Islands Passive Acoustic Network (PIPAN) is a collection of 14 sites spread across the Central and Western Pacific Ocean from American Samoa in the south to Pagan in the west to Manawai in the north, and the Big Island of Hawaii in the east. At each site a bottom-mounted High-frequency Acoustic Recording Package (HARP) instrument was deployed. These instruments were developed and processed in collaboration with the Scripps Institution of Oceanography and NOAA Pacific Islands Fisheries Science Center (PIFSC), with funding from PIFSC, the U.S. Navy and the Ocean Acoustics Program at the National Marine Fisheries Service Office of Science and Technology. The sites were specifically selected for the detection, classification and long-term monitoring of cetaceans in remote locations or areas of particular interest, and were initially focused on deep-diving species such as beaked whales and sperm whales. The data have subsequently been used for a variety of purposes, such as monitoring of surface-living cetaceans (e.g. delphinids, baleen whales), soundscape monitoring, and habitat modeling. The recordings allow the assessment of changes in vocalizations or distributions that might be related to increasing human sounds or changes in environmental conditions. The data began as early as 2005 at some sites, and are ongoing at selected sites through 2025. The duration of recordings at each site ranges from a few months to over 10 years. At sites with longer time series the data have intermittent gaps due to limited access to remote sites and issues with equipment. The instruments recorded frequencies from 10 Hz to 100 kHz or 160 kHz depending on the deployment. This dataset includes raw acoustic recordings from the HARP deployments and several associated files, which include calibration files (transfer functions) and two readme files that provide details on the acoustic recordings' xwav/flac format and descriptions of transfer functions. All recordings are collected in UTC. Amplitude calibration files called "transfer functions" are associated with the specific HARP equipment used to collect each acoustic recording dataset. Correct use of transfer functions is critical for providing absolute measured sound pressure received levels in standard acoustic measurement units, and for comparing signals within and between deployments. Transfer functions are estimates of a recording system's true sensitivity, and are being continuously evaluated and improved by Scripps Institution of Oceanography researchers and are subject to change without notice. Please review the Transfer_Function_readme before using this data. All recordings have been converted to flac format from extended wav (x.wav) format. The xwav header information has been preserved in the conversion to flac format by using the --keep-foreign-metadata flag when compressing the data, however the header byte locations are not correct while the data remain in flac format. To retain the header information when decompressing from flac back to xwav, the --keep-foreign-metadata flag should also be used. This data set was funded, in part, by the Protected Species and Ecosystems and Oceanography divisions at NMFS PIFSC, by the NOAA Fisheries Office of Science and Technology Ocean Acoustics Program, and by the US Navy CNO-N45 and Pacific Fleet. ongoing Passive Acoustic Data Manager DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Passive Acoustic Data Manager 325 Broadway, Mail Code E/NE42 Boulder CO 80305-3328 USA pad.info@noaa.gov pointOfContact NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://data.noaa.gov/docucomp/image/3dcc4626-58b7-4c67-ade8-dfb150fe5935 Locations of HARPs in the Pacific Islands region to monitor cetacean occurrence and seasonality. Green locations are active as of October 2018 and red locations are currently inactive HARP locations. Credit: NOAA Fisheries jpeg, png, etc. Earth Science > Biological Classification > Animals/Vertebrates > Fish Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Cetaceans Earth Science > Oceans > Ocean Acoustics Earth Science > Oceans > Aquatic Sciences > Fisheries Earth Science > Oceans > Marine Environment Monitoring Earth Science > Oceans > Ocean Acoustics > Ambient Noise Earth Science > Biosphere > Aquatic Ecosystems Earth Science > Biosphere > Ecosystems > Marine Ecosystems theme Global Change Master Directory (GCMD) Science Keywords 2024 revision 19 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2024 revision 19 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Water-based > Platforms > Fixed Platforms > Subsurface platform Global Change Master Directory (GCMD) Platform Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Recorders/Loggers > Passive Acoustic Recorder Acoustic Sounders > Hydrophones instrument Global Change Master Directory (GCMD) Instrument Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. otherRestrictions Cite as: NOAA NMFS PIFSC. 2025. Pacific Islands Passive Acoustic Network (PIPAN) 200 kHz Data. NOAA National Centers for Environmental Information. https://doi.org/10.25921/69ge-bc95 [access date] eng; USA biota oceans 145.4567 -156.01483 0.44345 28.62745 2005-04-26T00:00:00 Instrument Recording Configuration Details physicalMeasurement Sample Rate 200000 200000 Hz Instrument elevation relative to sea level -1260 -100 meter Seafloor/ground elevation relative to sea level -1270 -110 meter Recording Duration 300 300 Seconds Recording Interval 600 300 Seconds Raw audio files (.wav, .aif, .flac) 1 Raw audio files produced from data collected by a passive acoustic recording system. File format is one of the standard audio file formats (.wav, .aif, .flac, etc.). NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Raw audio files (.wav, .aif, .flac) Raw audio files produced from data collected by a passive acoustic recording system. File format is one of the standard audio file formats (.wav, .aif, .flac, etc.). https://doi.org/10.25921/69ge-bc95 HTTPS Metadata Landing Page information https://www.ncei.noaa.gov/products/passive-acoustic-data Passive Acoustic Data Site NCEI site providing more information on the passive acoustic data archive. information https://www.fisheries.noaa.gov/pacific-islands/population-assessments/passive-acoustics-pacific-islands Passive Acoustics in the Pacific Islands Information about passive acoustic monitoring programs in the Pacific Islands information https://www.ncei.noaa.gov/maps/passive-acoustic-data/ Passive acoustic Data Map Viewer Interactive map viewer to allow discovery and access to passive acoustic data search https://console.cloud.google.com/storage/browser/noaa-passive-bioacoustic/pifsc/audio/pipan_200khz Google Cloud Storage Google Cloud Storage providing public access to passive acoustic data through the NOAA Big Data Project. download series Good This data set was funded, in part, by the Protected Species and Ecosystems and Oceanography divisions at NMFS PIFSC, by the NOAA Fisheries Office of Science and Technology Ocean Acoustics Program, and by the US Navy CNO-N45 and Pacific Fleet. asNeeded Based on the NCEI Metadata Template v1.2 HARP acoustic recorder Mooring Platform used to deploy acoustic recorders Recorder may vary during project acoustic recorder