OPeNDAP Dataset Query Form

OPeNDAP Dataset Access Form

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Global Attributes:	_NCProperties: version=1\|netcdflibversion=4.6.1\|hdf5libversion=1.8.12 cmd_data_type: point, timeSeries date_created: 2023-07-13T15:22:42Z featureType: timeSeries geospatial_lat: 79.856 geospatial_lat_units: degree_north geospatial_lon: 5.1239 geospatial_lon_units: degree_east institution: Nansen Environmental and Remote Sensing Center (NERSC) iso_topic_category: oceans keywords_vocabulary: GCMD Science Keywords platform_detail: 1 DSTAR(s) were installed in the platform. Each DSTAR controlled up to 10 hydrophones. publisher_email: datamanager@nersc.no standard_name_vocabulary: CF Standard Name version 57 time_coverage_duration: P545D time_coverage_end: 2016-03-06T15:02:06Z time_coverage_resolution: P3H time_coverage_start: 2014-09-08T21:02:06Z title: UNDERICE: Ambient noise in water _ 08/09/2014-06/03/2016 Conventions: CF-1.6, ACDD-1.3 date_modified: 2023-07-14T11:29:44+0200 history: 2023-07-13T15:22:42Z creation; 2023-07-14T11:29:44+0200 metadata updated id: ARCTIC_UNDERICE_UI5_20140908-20160306_ambientnoiseL2 contributor_email: Hanne.Sagen@nersc.no; Florian.Geyer@nersc.no; Espen.Storheim@nersc.no; Frode.Monsen@nersc.no; Tor.Olaussen@nersc.no; Torill.Hamre@nersc.no contributor_name: Hanne Sagen; Florian Geyer; Espen Storheim; Frode Monsen; Tor I. Olaussen; Torill Hamre contributor_role: Principal investigator and Data collection; Data collection, Processing and Formatting; Data collection; Data curation; Publishing data; Data manager data_assembly_center: NERSC keywords: EARTH SCIENCE, OCEANS, OCEAN ACOUSTICS, AMBIENT NOISE license: https://creativecommons.org/licenses/by/4.0/. Users must include the acknowledgement and citation for these data. naming_authority: no.nersc.under-ice platform: UI5 project: UNDER-ICE (RCN project no. 226373) publisher_name: Nansen Environmental and Remote Sensing Center publisher_url: https://www.nersc.no/ source: ocean mooring observation summary: This mooring is part of the UNDER-ICE experiment in the Fram Strait. The mooring carried 9 hydrophones: HM542 (565m), HM543 (556m), HM544 (547m), HM545 (538m), HM546 (529m), HM547 (520m), HM548 (511m), HM549 (502m), HM550 (493m). A total of 4359 recordings were obtained from each hydrophone every 3 hours from Sep 2014 - Mar 2016. Each acoustic recording covered 130 s with sampling rate 1000Hz. 10-, 50- and 90- percentiles of sound pressure and power were calculated for each reception using 50 % overlapping Hanning window with a window length of 1024 samples.The units for sound pressure is Pa. The unit for power (ocean sound level) is dB re uPa2 Hz-1. Noise by cable strumming is included. The processing is described in Geyer et al. 2021 https://doi.org/10.1121/2.0001507. processing_level: Level 2 (Data verified against model or other contextual information) publisher_type: institution publisher_institution: Nansen Environmental and Remote Sensing Center project_id: 226373 funding_agency: The Research Council of Norway (RCN) project_lead: Hanne Sagen, Nansen Environmental and Remote Sensing Center project_lead_email: Hanne.Sagen@nersc.no principal_investigator: Hanne Sagen, Nansen Environmental and Remote Sensing Center principal_investigator_email: hanne.sagen@nersc.no investigator: Florian Geyer, Nansen Environmental and Remote Sensing Center investigator_email: florian.geyer@nersc.no cruise_id: KV Svalbard 2016 cruise_responsible: Hanne Sagen, Nansen Environmental and Remote Sensing Center cruise_responsible_email: Hanne.Sagen@nersc.no data_set_language: english citation: The user must display the following citation in any publication or product using this dataset: "Florian Geyer; Hanne Sagen; Espen Storheim; Frode Monsen; Tor I. Olaussen; Torill Hamre (2023). UNDER-ICE: Arctic Ocean Under Melting Ice - Ambient noise in water 08/09/2014-06/03/2016". The user should refer to the following publication for the data processing: Florian Geyer; Hanne Sagen; Espen Storheim, 2021. A dataset of underwater passive acoustic recordings from a 2-year mooring deployment in Fram Strait (UNDER-ICE), Proc. Mtgs. Acoust 44, 070034 (2021), https://doi.org/10.1121/2.0001507 acknowledgement: Data were collected in the RCN project UNDER-ICE (project no. 226373), processed, quality controlled, and formatted in the HORIZON 2020 project INTAROS (grant agreement no. 727890 ), and published with metadata in the NERSC Strategic Institute Project SDL (Smarte og smidige dataleveringskjeder). Special thanks to the Norwegian Coast Guard for allocating ship time with KV Svalbard for UNDER-ICE mooring deployment and recovery." area: Fram Strait, Arctic Ocean STAR_UI5_acoustic_sampling_end_date: 2016-03-06T15:02:06Z STAR_UI5_acoustic_sampling_start_date: 2014-09-08T21:02:06Z STAR_UI5_acoustic_sampling_temporal_resolution: P3H STAR_UI5_geospatial_vertical_positive: down STAR_UI5_geospatial_vertical_units: EPSG:5831 STAR_UI5_hydrophone_id: 542.0, 543.0, 544.0, 545.0, 546.0, 547.0, 548.0, 549.0, 550.0 STAR_UI5_hydrophone_type: pressure sensor STAR_UI5_instrument: hydrophone_pressure_sensor, AD_converter STAR_UI5_instrument_id: STAR_S/N_ STAR_UI5_instrument_other_info: Distributed Simple Tomographic Acoustic Receiver (STAR) /10 hydrophone modules developed by Scripps Institution of Oceanography STAR_UI5_nominal_geospatial_vertical_depth: 565.0 556.0 547.0 538.0 529.0 520.0 511.0 502.0 493.0 STAR_UI5_nominal_geospatial_vertical_depth_unit: m STAR_UI5_processing_level: Data verified against model or other contextual information STAR_UI5_processing_level_conventions: Table.3 in OceanSITES Data Format Reference Manual STAR_UI5_sample_rate: 1000.0 STAR_UI5_summary: Passive acoustic data were recorded with 9 hydrophone(s) and a total of 4359 receptions were obtained from each hydrophone. Each observed acoustic data records 130 s with sampling rate 1000Hz.10-, 50- and 90- percentiles of sound pressure and power were calculated for each reception using 50 % overlapping Hanning window with a window length of 1024 samples.The units for sound pressure is Pa. The unit for power (ocean sound level) is dB re microPa2 Hz-1. Noise by cable strumming is included. STAR_UI5_time: 4359 STAR_UI5_frequency: 513 STAR_UI5_percentile: 3 STAR_UI5_hydrophone: 9

Variables:	/STAR_UI5/time: Array of 64 bit Reals [time = 0..4358] time: calendar: gregorian long_name: time standard_name: time units: days since 1-1-1 0:0:0 valid_range: 735850.8764583333, 736395.6264583333
	/STAR_UI5/snd_qc: Array of 8 bit Bytes [hydrophone = 0..8][time = 0..4358] hydrophone: time: _Unsigned: false comments: Mechanical noise was detected by the hydrophone displacement with threshold 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 5.0 m. 2 stands for recording without mechanical noise. 4 means recording incl. mechanical / electronic noise. When hydrophone displacement information is missing, the corresponding recording takes flag_value 0. flag_meanings: No_QC_was_performed Good_data Probably_good_data Bad_data_that_are_potentially_correctable Bad_data Value_changed long_name: quality_flag quality_control_indicator_conventions: Table 2 in OceanSITES Data Format Reference Manual standard_name: status_flag flag_values: 0, 1, 2, 3, 4, 5 coverage_content_type: qualityInformation
	/STAR_UI5/snd_power: Array of 32 bit Reals [hydrophone = 0..8][percentile = 0..2][time = 0..4358][frequency = 0..512] hydrophone: percentile: time: frequency: comments: The ocean sound level is given as the spectral power in dB re 1 \muPa^2 Hz^{-1} coverage_content_type: physicalMeasurement long_name: 10-, 50-, 90-percentiles_ocean_sound_in_level valid_range: 19.797529521719998, 139.848423232734 units: dB
	/STAR_UI5/snd_pressure: Array of 32 bit Reals [hydrophone = 0..8][percentile = 0..2][time = 0..4358][frequency = 0..512] hydrophone: percentile: time: frequency: coverage_content_type: physicalMeasurement long_name: 10-, 50-, 90-percentiles_sound_pressure_in_water standard_name: sound_pressure_in_water valid_range: 2979.6070316764526, 2.1192816657031155E9 units: Pa
	/STAR_UI5/frequency: Array of 64 bit Reals [frequency = 0..512] frequency: frequency_resolution: 0.9747 long_name: sound_frequency standard_name: sound_frequency units: Hz valid_range: 0.0, 1000.0
	/STAR_UI5/percentile: Array of 32 bit Reals [percentile = 0..2] percentile: comments: 10- 50- and 90- percentiles are common for use. long_name: percentile units: Percent valid_range: 0.0, 100.0
	/STAR_UI5/hydrophone: Array of 64 bit Reals [hydrophone = 0..8] hydrophone: comments: hydrophone ID in the STAR. long_name: hydrophone_ID standard_name: platform_name cf_role: timeseries_id units: 1

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For questions or comments about the OPeNDAP service bundled with the TDS, email THREDDS support at: support-thredds@unidata.ucar.edu

DDS:

Dataset {
    Float64 /STAR_UI5/time[time = 4359];
    Byte /STAR_UI5/snd_qc[hydrophone = 9][time = 4359];
    Float32 /STAR_UI5/snd_power[hydrophone = 9][percentile = 3][time = 4359][frequency = 513];
    Float32 /STAR_UI5/snd_pressure[hydrophone = 9][percentile = 3][time = 4359][frequency = 513];
    Float64 /STAR_UI5/frequency[frequency = 513];
    Float32 /STAR_UI5/percentile[percentile = 3];
    Float64 /STAR_UI5/hydrophone[hydrophone = 9];
} HiAOOS/ARCTIC_UNDERICE_UI1_20140906-20160131_ambientnoiseL2/ARCTIC_UNDERICE_UI5_20140908-20160306_ambientnoiseL2.nc;

OPeNDAP Dataset Access Form

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