NOAA-Navy Sanctuary Soundscape Monitoring Project, One-third Octave Sound Pressure Levels, Gray's Reef, SanctSound_GR01_04_TOL_1h

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 the one-third octave band sound pressure levels (TOLs) derived from raw passive acoustic data. TOLs were calculated by integration of sound pressure spectral density estimates of the mean-square pressure with a 1 Hz/1 second resolution over 30 one-third octave bands with the nominal center frequencies ranging from 25 to 20,000 Hz. The result is then calculated per hour as a median over no less than 1,800 1-second values for that hour and converted to decibels (dB re 1 µPa). These data were recorded at SanctSound Site GR01_04 between January 29, 2020 and May 20, 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. One-third Octave Band Sound Pressure Levels at 1 Hertz and 1 Hour Resolution Recorded at SanctSound Site GR01_04, SanctSound Data Products. NOAA National Centers for Environmental Information. Accessed [date]. DOI: https://doi.org/http://doi.org/10.25921/zz42-da86
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
defaultGraphQuery=sound_pressure_levels[][]&.draw=surface&.vars=time|frequency|sound_pressure_levels&.yRange=||true|Log
featureType=TimeSeries
geospatial_bounds=POINT (31.396417 -80.8904)
history=One-third octave band sound pressure levels (TOLs) in units of µPa^2 were calculated by integration of sound pressure spectral density (PSD) estimates of the mean-square pressure (µPa^2) with a 1 Hertz (Hz)/1 second resolution over each of 30 one-third octave bands with the nominal center frequencies ranging from 25 to 20,000 Hz (IEC 61260-1995). The resulting TOLs with the 1 second resolution were then used to calculate hourly TOLs as a median over no less than 1,800 1-second values for that hour. The TOLs per hour were converted to decibels (dB re 1 µPa). Data were processed with Triton - Soundscape Metrics Remora (Github commit '44f0f20'; Feb 9, 2020) and Matlab (2016b and newer; statistics toolbox).
id=http://doi.org/10.25921/zz42-da86
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
time_coverage_end=2020-05-20T22:00:00Z
time_coverage_start=2020-01-29T17:00:00Z

美国国家海洋和大气管理局（NOAA）与美国海军携手努力，旨在深入探究美国国家海洋保护区系统内的水下声学环境。自2018年至2021年，这些机构将与众多科学合作伙伴合作，研究七个国家海洋保护区及一个海洋国家纪念区的声学环境，涵盖夏威夷岛以及美国东西两岸海域。标准化测量将评估海洋生物、物理过程（如风浪）以及人类活动产生的声音。该信息汇总将有助于NOAA和海军测量保护区内的声音水平和声学基础条件。此项研究是NOAA和国家海洋保护区办公室以及美国海军持续研究工作的延续，包括NOAA国家海洋保护区办公室的努力。本数据集代表从NOAA国家环境信息中心存档的原始声学数据中派生出来的产品。