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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, Explosion Detection Events, Channel Islands, SanctSound_CI02_05_Explosions | I M | background | NOAA | noaaSanctSound_CI02_05_Explosions |
Row Type | Variable Name | Attribute Name | Data Type | Value |
---|---|---|---|---|
attribute | NC_GLOBAL | abstract | String | This record represents the explosions detected from raw passive acoustic data. All acoustic data were processed using Triton's Explosion Detector, which is based on a cross-correlation of the recording with a template explosion. The detector divides the recording into sequentially analyzed sections of 75 s. The detector outputs are a series of .mat files that can be evaluated using GPLReview. The original wav file was decimated to a sample rate of 12 kHz, a requirement of the algorithm. The default parameters work well for most explosive sounds. These data were recorded at SanctSound Site CI02_05 between June 04, 2020 and October 22, 2020. |
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. Explosion Detection Events Recorded at SanctSound Site CI02_05, SanctSound Data Products. NOAA National Centers for Environmental Information. Accessed [date]. DOI: https://doi.org/http://doi.org/10.25921/wkde-dv36 |
attribute | NC_GLOBAL | comment | String | Data quality: Quality data were recorded for the duration of the deployment. |
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 | featureType | String | TimeSeries |
attribute | NC_GLOBAL | geospatial_bounds | String | POINT (34.0853 -120.5223) |
attribute | NC_GLOBAL | history | String | All acoustic data were processed using the Explosion Detector within Triton. The detector is based on a cross-correlation of the recording with a template explosion. The detector divides the recording into sections of 75 s, which are analyzed sequentially. The output of the detector is a series of .mat files, that can be read into GPLReview to evaluate. The detector needs audio files with a sample rate of 12 kHz, so decimation of the original wav file (possible in Triton) is required if the sample rate is higher. The default settings of the parameters generally work well for most explosive sounds. The following parameters are used by the Explosion Detector: Threshold Offset: Offset that is added to the median square of correlation coefficient to calculate the threshold. Minimum Time Distance (s): minimum time distance between consecutive explosions. Noise Samples: number of noise samples before and after the signal to be pulled out. RMS Noise Before Signal (dB): Threshold for the minimum difference in root-mean-square sound pressure level between the signal and the time before the detection. RMS Noise After Signal (dB): Threshold for the minimum difference in root-mean-square sound pressure level between the signal and the time after the detection. PP Noise Before Signal (dB): Threshold for the minimum difference in peak-to-peak sound pressure level between the signal and the time before the detection. PP Noise After Signal (dB): Threshold for the minimum difference in peak-to-peak sound pressure level between the signal and the time after the detection. Maximum Explosion Duration (s). Minimum Explosion Duration (s). 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/wkde-dv36 |
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 | title | String | NOAA-Navy Sanctuary Soundscape Monitoring Project, Explosion Detection Events, Channel Islands, SanctSound_CI02_05_Explosions |
dimension | start_time | double | nValues=38, evenlySpaced=false, averageSpacing=224672.44737837766 | |
attribute | start_time | actual_range | double | 1.591419886856E9, 1.599732767409E9 |
attribute | start_time | axis | String | T |
attribute | start_time | comment | String | Start time of detections. Corresponding end time for detection in end_time_var at same index value as start_time_var. |
attribute | start_time | ioos_category | String | Time |
attribute | start_time | long_name | String | Start Time |
attribute | start_time | standard_name | String | time |
attribute | start_time | time_origin | String | 01-JAN-1970 00:00:00 |
attribute | start_time | time_precision | String | 1970-01-01T00:00:00.000Z |
attribute | start_time | units | String | seconds since 1970-01-01T00:00:00Z |
variable | explosions_presence | double | start_time | |
attribute | explosions_presence | cell_methods | String | time: sum (comment: presence (1) or absence (0) over time interval) |
attribute | explosions_presence | comment | String | Presence of explosive sound (0 = not present, 1 = present). |
attribute | explosions_presence | ioos_category | String | Statistics |
attribute | explosions_presence | long_name | String | explosions presence |
attribute | explosions_presence | standard_name | String | explosions_presence |
attribute | explosions_presence | units | String | boolean |
variable | end_time | double | start_time | |
attribute | end_time | actual_range | double | 1.591419887072E12, 1.599732767628E12 |
attribute | end_time | axis | String | T |
attribute | end_time | comment | String | End time of detections. Corresponding start time for detection in start_time_var at same index value as end_time_var. |
attribute | end_time | ioos_category | String | Time |
attribute | end_time | long_name | String | End Time |
attribute | end_time | standard_name | String | end_time |
attribute | end_time | time_origin | String | 01-JAN-1970 00:00:00 |
attribute | end_time | units | String | seconds since 1970-01-01T00:00:00Z |
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.