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Grid DAP Data | Sub- set | Table DAP Data | Make A Graph | W M S | Source Data Files | Acces- sible ![]() | Title | Sum- mary | FGDC, ISO, Metadata | Back- ground Info | RSS | E | Institution | Dataset ID |
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data | graph | files | public | NOAA-Navy Sanctuary Soundscapes Monitoring Project, Sound Pressure Spectral Density, Channel Islands CI01_01_PSD | ![]() | I M | background![]() | ![]() | ![]() | NOAA NCEI | noaaSanctSound_CI01_01_PSD_1h |
Row Type | Variable Name | Attribute Name | Data Type | Value |
---|---|---|---|---|
attribute | NC_GLOBAL | acknowledgement | String | This project received funding from the U.S. Navy. |
attribute | NC_GLOBAL | cdm_data_type | String | Grid |
attribute | NC_GLOBAL | comment | String | Preliminary metadata, may change as project progresses |
attribute | NC_GLOBAL | component | String | SoundTrap ST500 |
attribute | NC_GLOBAL | contributor_name | String | U.S. Navy |
attribute | NC_GLOBAL | contributor_role | String | funding |
attribute | NC_GLOBAL | Conventions | String | COARDS, CF-1.6, ACDD-1.3 |
attribute | NC_GLOBAL | creator_email | String | jejoseph at nps.edu |
attribute | NC_GLOBAL | creator_name | String | US Naval Postgraduate School |
attribute | NC_GLOBAL | creator_type | String | person |
attribute | NC_GLOBAL | creator_url | String | https://www.oc.nps.edu/![]() |
attribute | NC_GLOBAL | date_created | String | 2020-06-25 |
attribute | NC_GLOBAL | date_issued | String | 2020-06-25 |
attribute | NC_GLOBAL | defaultGraphQuery | String | sound_pressure_spectral_density_levels[][]&.draw=surface&.vars=time|frequency|sound_pressure_spectral_density_levels&.yRange=||true|Log |
attribute | NC_GLOBAL | history | String | Pressure spectral density (PSD) levels in units of 1 µPa^2/Hz were calculated using Welch's Method in Matlab (FFT length = 48000 points, Hann window length = 48000, FFT overlap = 0%), resulting in PSD estimates of mean-square pressure amplitude (µPa^2) with a frequency resolution of 1 Hz and temporal resolution of 1 second. For every 1-Hertz (Hz) frequency band from 20 Hz to 24,000 Hz, PSD levels per hour were calculated as the arithmetic mean of mean-square pressure amplitude (µPa^2) over an averaging window of 3600 seconds. PSD levels per hour for each frequency band were converted to decibels (dB re 1 µPa^2/Hz). |
attribute | NC_GLOBAL | id | String | NOAA-NAVY-SanctSound_CI01_01_PSD_1h |
attribute | NC_GLOBAL | infoUrl | String | https://www.ngdc.noaa.gov/mgg/pad/![]() |
attribute | NC_GLOBAL | institution | String | NOAA NCEI |
attribute | NC_GLOBAL | keywords | String | acoustic, acoustics, ambient noise, aquatic ecosystems, attenuation, attenuation/transmission, centers, cetacean, channel, ci01, data, density, division, earth, Earth Science > Oceans > Ocean Acoustics > Acoustic Attenuation/Transmission, environmental, fish, frequency, information, intensity, islands, level, marine, marine environment monitoring, marine habitat, monitoring, national, national centers for environmental information, national marine fisheries service, navy, ncei, nesdis, nms, noaa, noaa-navy, ocean, ocean acoustics, oceans, office of national marine sanctuaries, passive acoustic recorder, physical, pressure, project, projectsound, psd, sanctsound, sanctuaries, sanctuary, satellite, science, sciences, sea, sea level, seawater, service, sound, sound_intensity_level_in_water, soundscapes, spectral, spectrum, time, transmission, u.s. department of commerce, water |
attribute | NC_GLOBAL | keywords_vocabulary | String | GCMD Science Keywords |
attribute | NC_GLOBAL | license | String | The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Creator, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information. |
attribute | NC_GLOBAL | naming_authority | String | NOAA-NAVY |
attribute | NC_GLOBAL | product_version | String | 2020-04 |
attribute | NC_GLOBAL | project | String | NOAA Passive Acoustic Data |
attribute | NC_GLOBAL | publisher_email | String | erd.data at noaa.gov |
attribute | NC_GLOBAL | publisher_name | String | NOAA NMFS SWFSC ERD |
attribute | NC_GLOBAL | publisher_type | String | institution |
attribute | NC_GLOBAL | publisher_url | String | https://www.pfeg.noaa.gov![]() |
attribute | NC_GLOBAL | sensor | String | hydrophone |
attribute | NC_GLOBAL | sourceUrl | String | (local files) |
attribute | NC_GLOBAL | standard_name_vocabulary | String | CF Standard Name Table v70 |
attribute | NC_GLOBAL | summary | String | 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 (https://www.navymarinespeciesmonitoring.us) and NOAA (https://cetsound.noaa.gov/ons) monitoring and research, including efforts by NOAA's Office of National Marine Sanctuaries (https://sanctuaries.noaa.gov/science/sentinel-site-program/noise.html). This dataset represents the derived products from the raw acoustic data that are archived at NOAA's National Centers for Environmental Information (https://ngdc.noaa.gov/mgg/pad/) |
attribute | NC_GLOBAL | time_coverage_end | String | 2018-12-15T08:00:00Z |
attribute | NC_GLOBAL | time_coverage_start | String | 2018-10-31T22:00:00Z |
attribute | NC_GLOBAL | title | String | NOAA-Navy Sanctuary Soundscapes Monitoring Project, Sound Pressure Spectral Density, Channel Islands CI01_01_PSD |
dimension | time | double | nValues=1064, evenlySpaced=false, averageSpacing=1h 0m 10s | |
attribute | time | _CoordinateAxisType | String | Time |
attribute | time | actual_range | double | 1.5410232E9, 1.5448608E9 |
attribute | time | axis | String | T |
attribute | time | ioos_category | String | Time |
attribute | time | long_name | String | Time |
attribute | time | standard_name | String | time |
attribute | time | time_origin | String | 01-JAN-1970 00:00:00 |
attribute | time | units | String | seconds since 1970-01-01T00:00:00Z |
dimension | frequency | double | nValues=23981, evenlySpaced=true, averageSpacing=1.0 | |
attribute | frequency | actual_range | double | 20.0, 24000.0 |
attribute | frequency | comment | String | Frequency resolution of 1 Hz |
attribute | frequency | ioos_category | String | Unknown |
attribute | frequency | long_name | String | frequency |
attribute | frequency | standard_name | String | sound_frequency |
attribute | frequency | units | String | Hz |
variable | sound_pressure_spectral_density_levels | double | time, frequency | |
attribute | sound_pressure_spectral_density_levels | colorBarMaximum | double | 110.0 |
attribute | sound_pressure_spectral_density_levels | colorBarMinimum | double | 50.0 |
attribute | sound_pressure_spectral_density_levels | comment | String | Power spectral density levels per hour were calculated as the arithmetic mean of mean-square pressure amplitude (µPa^2) over an averaging window of 3600 seconds and converted to decibels (dB re 1 µPa^2/Hz). |
attribute | sound_pressure_spectral_density_levels | ioos_category | String | Pressure |
attribute | sound_pressure_spectral_density_levels | long_name | String | Sound pressure spectrum level |
attribute | sound_pressure_spectral_density_levels | standard_name | String | sound_intensity_level_in_water |
attribute | sound_pressure_spectral_density_levels | units | String | dB |
The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.