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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 Soundscape Monitoring Project, Octave Sound Pressure Levels, Gray's Reef, SanctSound_GR03_02_OL_1h | M | background | NOAA | noaaSanctSound_GR03_02_OL_1h |
Row Type | Variable Name | Attribute Name | Data Type | Value |
---|---|---|---|---|
attribute | NC_GLOBAL | abstract | String | This record represents the octave band sound pressure levels (OLs) derived from raw passive acoustic data. OLs were calculated by integration of sound pressure spectral density estimates of the mean-square pressure with a 1 Hz/1 second resolution over 10 octave bands with the center frequencies ranging from 31.5 to 16,000 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 GR03_02 between May 02, 2019 and September 09, 2019. |
attribute | NC_GLOBAL | acknowledgement | String | This project received funding from the U.S. Navy. |
attribute | NC_GLOBAL | cdm_data_type | String | TimeSeries |
attribute | NC_GLOBAL | citation | String | Cite as: NOAA Office of National Marine Sanctuaries and U.S Navy. 2021. Octave Band Sound Pressure Levels at 1 Hertz and 1 Hour Resolution Recorded at SanctSound Site GR03_02, SanctSound Data Products. NOAA National Centers for Environmental Information. Accessed [date]. DOI: https://doi.org/http://doi.org/10.25921/48en-8347 |
attribute | NC_GLOBAL | comment | String | Data quality: A 20 Hz high pass filter is integrated into the instrument; thus, data below 20 Hz is reduced in ampitude and uncalibrated. The first 4 hour file was missing after turning on the instrument; thus the delay in data after deployment. Gap in data from 2019-07-06 16:00:41 UTC to 2019-07-06 16:05:54 UTC. Weird noise after card switch was removed from 2019-07-06 16:05:54 - 16:05:57 (3 sec extra removed). The fixed hydrophone mooring was moved after an interaction with something to a different habitat on June 13th, 2019. The fixed hydrophone mooring was impacted by Hurricane Dorian on September 4th, 2019, where the instrument was further moved. Hydrophone was found about 30 ft from original site at N 31 22.051, W -80 53.694. Reductions in sound levels (received levels) in frequencies above 1 kHz were observed after 21:20:00 13-June-2019 and were further observed after 15:47:00 4-September-2019. Levels may differ from what would be expected if the hydrophone was not moved or impacted by the two hurricanes. |
attribute | NC_GLOBAL | contributor_name | String | 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 |
attribute | NC_GLOBAL | contributor_role | String | Principal Investigator |
attribute | NC_GLOBAL | Conventions | String | COARDS, CF-1.6, ACDD-1.3 |
attribute | NC_GLOBAL | creator_email | String | ncei.info at noaa.gov |
attribute | NC_GLOBAL | creator_name | String | NOAA NCEI |
attribute | NC_GLOBAL | creator_url | String | https://www.ncei.noaa.gov/ |
attribute | NC_GLOBAL | date_created | String | 2022-08-22 |
attribute | NC_GLOBAL | date_issued | String | 2022-08-22 |
attribute | NC_GLOBAL | defaultGraphQuery | String | sound_pressure_levels[][]&.draw=surface&.vars=time|frequency|sound_pressure_levels&.yRange=||true|Log |
attribute | NC_GLOBAL | featureType | String | TimeSeries |
attribute | NC_GLOBAL | geospatial_bounds | String | POINT (31.36749 -80.895) |
attribute | NC_GLOBAL | history | String | Octave band sound pressure levels (OLs) 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 10 octave bands (ISO266-1997) with the center frequencies ranging from 31.5 to 16,000 Hz. The resulting OLs with 1 second resolution were then used to calculate hourly OLs as a median over no less than 1,800 1-second values for that hour. The OLs 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). |
attribute | NC_GLOBAL | id | String | http://doi.org/10.25921/48en-8347 |
attribute | NC_GLOBAL | infoUrl | String | https://ncei.noaa.gov |
attribute | NC_GLOBAL | institution | String | NOAA |
attribute | NC_GLOBAL | instrument | String | SoundTrap ST500 |
attribute | NC_GLOBAL | keywords | String | acoustic attenuation/transmission, acoustics, ambient noise, aquatic ecosystems, cetacean, environmental, fish, frequency, intensity, marine environment monitoring, marine habitat, national centers for environmental information, Navy, NOAA, ocean acoustics, oceans, office of national marine sanctuaries, passive acoustic recorder, pressure, sound_intensity_level_in_water, soundscapes |
attribute | NC_GLOBAL | keywords_vocabulary | String | GCMD Science Keywords |
attribute | NC_GLOBAL | license | String | The data may be used and redistributed for free but are 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 | project | String | NOAA-Navy Sanctuary Soundscape Monitoring Project |
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 | sourceUrl | String | (local files) |
attribute | NC_GLOBAL | standard_name_vocabulary | String | CF Standard Name Table v55 |
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 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. |
attribute | NC_GLOBAL | time_coverage_end | String | 2019-09-09T09:00:00Z |
attribute | NC_GLOBAL | time_coverage_start | String | 2019-05-02T00:00:00Z |
attribute | NC_GLOBAL | title | String | NOAA-Navy Sanctuary Soundscape Monitoring Project, Octave Sound Pressure Levels, Gray's Reef, SanctSound_GR03_02_OL_1h |
dimension | time | double | nValues=3130, evenlySpaced=true, averageSpacing=1h 0m 0s | |
attribute | time | _CoordinateAxisType | String | Time |
attribute | time | actual_range | double | 1.5567552E9, 1.5680196E9 |
attribute | time | axis | String | T |
attribute | time | comment | String | Start times of 1-hour bins over which sound pressure levels are calculated |
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 | time_precision | String | 1970-01-01T00:00:00Z |
attribute | time | units | String | seconds since 1970-01-01T00:00:00Z |
dimension | frequency | double | nValues=10, evenlySpaced=false, averageSpacing=1774.2777777777778 | |
attribute | frequency | actual_range | double | 31.5, 16000.0 |
attribute | frequency | comment | String | Octave band center frequency. |
attribute | frequency | ioos_category | String | Other |
attribute | frequency | long_name | String | frequency |
attribute | frequency | standard_name | String | sound_frequency |
attribute | frequency | time_precision | String | 1970-01-01T00:00:00Z |
attribute | frequency | units | String | Hz |
variable | sound_pressure_levels | double | time, frequency | |
attribute | sound_pressure_levels | cell_methods | String | time: sum |
attribute | sound_pressure_levels | colorBarMaximum | double | 110.0 |
attribute | sound_pressure_levels | colorBarMinimum | double | 50.0 |
attribute | sound_pressure_levels | comment | String | Sound pressure level for time bin |
attribute | sound_pressure_levels | ioos_category | String | Pressure |
attribute | sound_pressure_levels | long_name | String | sound pressure levels |
attribute | sound_pressure_levels | standard_name | String | sound_pressure_level_in_water |
attribute | sound_pressure_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.