NOAA-Navy Sanctuary Soundscape Monitoring Project, Mid Frequency Active Sonar, Channel Islands, SanctSound_CI04_05_sonar

NOAA and the U.S. Navy are working to better understand underwater sound within the U.S. National Marine Sanctuary System. From 2018 to 2021, these agencies will work with numerous scientific partners to study sound within seven national marine sanctuaries and one marine national monument, which includes waters off Hawai'i and the east and west coasts. Standardized measurements will assess sounds produced by marine animals, physical processes (e.g., wind and waves), and human activities. Collectively, this information will help NOAA and the Navy measure sound levels and baseline acoustic conditions in sanctuaries. This work is a continuation of ongoing Navy and NOAA research, including efforts by NOAA's Office of National Marine Sanctuaries This dataset represents the derived products from the raw acoustic data that are archived at NOAA National Centers for Environmental Information.
abstract=This record represents encounters of active sonar. Encounters of low and mid-frequency active sonar were logged manually from Long-term Spectral Averages using the Logger remora in Triton and user-defined settings. All detected signals with the same characteristics detected within 1 hour of each other were considered one encounter.These data were recorded at SanctSound Site CI04_05 between June 04, 2020 and October 22, 2020.
acknowledgement=This project received funding from the U.S. Navy.
cdm_data_type=TimeSeries
citation=Cite as: NOAA Office of National Marine Sanctuaries and U.S Navy. 2021. Active Sonar Recorded at SanctSound Site CI04_05, SanctSound Data Products. NOAA National Centers for Environmental Information. Accessed [date]. DOI: https://doi.org/http://doi.org/10.25921/grke-4d37
comment=Data quality: Quality data were recorded for the duration of the deployment.
contributor_name=Simone Baumann-Pickering, Scripps Institution of Oceanography; Leila Hatch, NOAA Stellwagen Bank National Marine Sanctuary; John Joseph, U.S. Naval Postgraduate School; Anke Kuegler, Hawai'i Institute of Marine Biology, University of Hawai'i at Manoa; Marc Lammers, NOAA Hawaiian Islands Humpback Whale National Marine Sanctuary; Tetyana Margolina, U.S. Naval Postgraduate School; Karlina Merkens, NOAA Pacific Islands Fisheries Science Center; Lindsey Peavey Reeves, NOAA Channel Islands National Marine Sanctuary; Timothy Rowell, NOAA Northeast Fisheries Science Center; Jenni Stanley, Woods Hole Oceanographic Institution; Alison Stimpert, Moss Landing Marine Laboratories; Sofie Van Parijs, NOAA Northeast Fisheries Science Center; Eden Zang,NOAA Hawaiian Islands Humpback Whale National Marine Sanctuary
contributor_role=Principal Investigator
Conventions=COARDS, CF-1.6, ACDD-1.3
featureType=TimeSeries
geospatial_bounds=POINT (33.8489 -120.1171)
history=Encounters of active sonar were logged manually from Long-term Spectral Averages (LTSA), using the Logger remora in Triton (Scripps Whale Acoustics Lab, La Jolla, USA), with the following settings: Window length = 1 h, Frequency range = 0-6000 Hz, Brightness = 40 dB, Contrast = 100%. All detected signals with the same characteristics detected within 1 hour of each other were considered one encounter. Data were processed with Triton - (1.93.20160524/Github version d81e5fa) and Matlab (2016b and newer; statistics toolbox).
id=http://doi.org/10.25921/grke-4d37
infoUrl=https://ncei.noaa.gov
institution=NOAA
instrument=SoundTrap ST500
keywords_vocabulary=GCMD Science Keywords
naming_authority=NOAA-Navy
project=NOAA-Navy Sanctuary Soundscape Monitoring Project
sourceUrl=(local files)
standard_name_vocabulary=CF Standard Name Table v55

国家海洋与大气管理局（NOAA）及美国海军正致力于深化对美国国家海洋保护区系统内水下声学的理解。自2018年至2021年，这些机构将与众多科研合作伙伴携手研究七个国家海洋保护区及一个海洋国家纪念区的声学状况，涉及夏威夷群岛以及东西海岸附近海域。标准化测量将评估海洋生物、物理过程（例如风浪）以及人类活动产生的声音。汇总这些信息将有助于NOAA和海军测量保护区内的声级和声学基础条件。此项目是海军和NOAA持续研究工作的延续，包括NOAA国家海洋保护区办公室的持续努力。本数据集代表了存档于NOAA国家环境信息中心的原声学数据的派生产品。