Metadata Identifier: gov.noaa.ngdc.mgg.wcd:COP1710_EK80

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 Measurements of natural hydrocarbon gas flux in the Coal Oil Point seep field (COP1710, EK80) On 26 October 2017, acoustic data was collected in tandem with direct, in situ gas flux measurements. Acoustic data was collected using a Simrad ES200-7C split-beam echosounder that was interfaced with an EK80 Wideband Transceiver. The echosounder was operated over a frequency bandwidth of 160-260 kHz. Direct measurements of gas flux were obtained using a bubble catch device (BCD) that was designed to capture gas in an inverted graduated cylinder through a funnel. An underwater camera that was attached to the BCD was used to capture images of the accumulation of gas within the cylinder. The echosounder was pole-mounted to the port side of the R/V Connell, while the BCD was hand deployed from the starboard side of the vessel. A Garmin WAAS-enabled GPS system was interfaced with the EK80 software to provide position of the vessel throughout the survey. Collection of both acoustic data and direct gas flux measurements were obtained at three seep sites located within the Coal Oil Point seep field: Platform Holly, Seep Tent and La Goleta. Data collection was obtained by positioning the vessel in locations of high seepage activity (verified with the acoustic data) and then allowing the vessel to drift over the area until no seepage activity was observed. Both the acoustic data and the direct gas flux measurements were collected simultaneously throughout the survey. The BCD was deployed at a depth of 23 m at La Goleta and Seep Tent and at 15 m at Platform Holly. A total of 20 .MP4 files were obtained with the BCD. A preliminary test run of the BCD was conducted at the La Goleta seep site at 1532 UTC. Following the BCD test, both acoustic data and video images from the BCD were acquired at the La Goleta seep site. At approximately 1930 UTC, data collection at La Goleta was completed and the R/V Connell transited to the Seep Tent seep site. Data collection at Seep Tent commenced at approximately 1956 UTC and was completed at 2116 UTC. A CTD cast was performed after the survey near Seep Tent. A field calibration was done for the ES200-7C split-beam echosounder following the CTD cast with a 28.5 mm Tungsten-Carbide calibration spheres. At 2150 UTC, the R/V Connell arrived at Platform Holly in order to collect both acoustic and BCD measurements. Data collection with the BCD finished at 2244 UTC and a final acoustic survey in the vicinity of Platform Holly was conducted between 2256 UTC and 2357 UTC.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
    2008-11-12
1 GCMD Data Center Keywords Global Change Master Directory (GCMD) Data Center Keywords
    2020-01-09
1 NASA/GCMD Instrument Keywords Global Change Master Directory (GCMD) Instrument Keywords
    2020-01-09
1 No Title Global Change Master Directory (GCMD) Location Keywords
    2020-01-09
1 NASA/GCMD Science Keywords Global Change Master Directory (GCMD) Science Keywords
    2020-01-09
1 IHO Sea Areas International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
    2010-08-24
1 Measurements of natural hydrocarbon gas flux in the Coal Oil Point seep field (COP1710, EK80)
    2017-10-26
COP1710_EK80
doi:10.25921/1q3m-3689
1 R/V Connell
    2019-01-31
2 Simrad EK80 Echosounder
    		EK80
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    CI_Series

    none found
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    CI_ResponsibleParty

    Count Component Individual Organization Position Email Role Linkage
    3 Alexandra Padilla Alexandra Padilla UNH/CCOM Graduate Student apadilla@ccom.unh.edu principalInvestigator
    1 David Valentine(chief scientist) Dave Valentine University of Califonria, Santa Barbara Professor valentine@geol.ucsb.edu principalInvestigator
    1 European Petroleum Survey Group http://www.epsg-registry.org/
    1 Frank Kinnaman(chief scientist) Frank Kinnaman UCSB frank_kinnaman@ucsb.edu principalInvestigator
    1 International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) resourceProvider https://iho.int/
    4 GCMD Landing Page NASA Goddard Space Flight Center, Earth Science Data and Information System custodian https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
    2 Chuck Anderson NOAA National Centers for Environmental Information Water Column Sonar Data Manager wcd.info@noaa.gov pointOfContact
    1 custodian - National Centers for Environmental Information (NCEI) NOAA National Centers for Environmental Information custodian
    1 publisher - National Centers for Environmental Information (NCEI) NOAA National Centers for Environmental Information publisher
    1 Scott Loranger(chief scientist) Scott Loranger UNH/CCOM sloranger@ccom.unh.edu principalInvestigator
    2 Simrad - Kongsberg Maritime AS resourceProvider https://www.kongsberg.com/maritime/products/ocean-science/ocean-science/es_scientific/ek80software/
    1 Tom Weber(chief scientist) Tom Weber UNH/CCOM-JHC Assistant Professor weber@ccom.unh.edu principalInvestigator
    1 UNH/CCOM-JHC UNH/CCOM-JHC> Center for Coastal and Ocean Mapping - Joint Hydrographic Center info@ccom.unh.edu resourceProvider
    3 UNH/CCOM-JHC (originator) UNH/CCOM-JHC> Center for Coastal and Ocean Mapping - Joint Hydrographic Center info@ccom.unh.edu pointOfContact
    2 University of California - Santa Barbara (originator) University of California - Santa Barbara sponsor
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    CI_OnlineResource

    Count Component Linkage Name Description Function
    1 http://maps.ngdc.noaa.gov/viewers/water_column_sonar/ Water Column Sonar Data Map Viewer Interactive map viewer to allow discovery and access to water column sonar data search
    1 http://www.epsg-registry.org/ European Petroleum Survey Group Geodetic Parameter Dataset Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search
    1 http://www.ngdc.noaa.gov/mgg/wcd Water Column Sonar Data Archive Homepage Web page containing information on the water column sonar data archive. information
    1 https://iho.int/ International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) Publication of Sea Areas is maintained by IHO. information
    4 https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information
    2 https://www.kongsberg.com/maritime/products/ocean-science/ocean-science/es_scientific/ek80software/ Simrad Ek80 information web page Page contains general information on the Ek80 and has links to details on operation and file formats information
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    MD_Identifier or RS_Identifier

    Count Component Code
    1 COP1710
    2 COP1710_EK80
    1 Connell
    2 EK80
    1 Mapping the Spatial Distribution of Seepage Activity in the Coal Oil Point seep field
    2 Simrad EK80
    1 doi:10.25921/1q3m-3689
    1 urn:ogc:def:crs:EPSG:4326
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    EX_Extent

    Bounding Box Temporal Extent
    Count Component Description West East North South Start End
    1 -119.90934 -119.8525 34.39187 34.37295 2017-10-26T15:30:01 2017-10-26T23:59:34
    1 East of Sent Tent seep site in the Coal Oil Point seep field
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    EX_GeographicBoundingBox

    Count Component West East North South
    1 -119.90934 -119.8525 34.39187 34.37295
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    EX_TemporalExtent

    Count Component Start End
    1 2017-10-26T15:30:01 2017-10-26T23:59:34
    1
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    MD_Format

    Count Component Name Version specification
    1 Simrad EK80 raw (.raw) format 1 Simrad EK80 raw files. See the Simrad EK80 interface specification manual for additional information.
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    MD_Medium

    none found
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    MD_Constraints

    Count Component Use Limitation
    1 Raw Data Disclaiimer These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
    1 No Copyright Not subject to copyright protection within the United States.
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    MD_ReferenceSystem

    Count Component Code Authority Title
    1 European Petroleum Survey Group (EPSG) Geodetic Parameter Registry urn:ogc:def:crs:EPSG:4326 European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
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    MD_GridSpatialRepresentation

    none found
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    MD_Georeferenceable or MI_Georeferenceable

    none found
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    MD_Georectified or MI_Georectified

    none found
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    MD_Dimension

    none found
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    MD_CoverageDescription or MI_CoverageDescription

    Count Component Attribute Description Content Type
    1 Trackline
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    MD_Band or MI_Band

    none found
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    MI_RangeElementDescription

    none found
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    MD_AggregateInformation

    Count Component Title Code Association Type Code
    1 COP1710 largerWorkCitation
    1 Mapping the Spatial Distribution of Seepage Activity in the Coal Oil Point seep field largerWorkCitation
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    LE_Source or LI_Source

    none found
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    LE_ProcessStep or LI_ProcessStep

    Count Component DateTime Description
    1 2017-10-26T15:30:01 Package created using WCSD Packager version 11_28_17. The files are read as part of processing but they are not modified by the packaging process. The archived files are the unaltered raw instrument files
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    MI_Operation

    Count Component Code Type Status Description
    1 COP1710_EK80 completed
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    MI_Platform

    Count Component Code Description
    1 Connell Connell 26-foot Anderson hull with a cabin and twin 150 Hp Evinrude outboard engines. Equipment includes: Furuno GPS and Radar, 2500ft fathometer, VHF marine radio, AIS, EPIRB, compass, deck/running/anchor lighting, 110 VAC x 7A inverter, capstan, and side mounted davit (150 lbs max) with hydraulic pinch wheel. A vertical pole mount is available for mobile sonar and ADCP surveys. The boat can hold up to 30 SCUBA tanks and is capable of cruising at 25 knots with 6 divers and gear. There are two 80 gallon fuel tanks giving the boat an operating range of 320 miles. The dual axle trailer allows the boat to be launched from a range of harbors.
    Unresolved Xlinks
    Connell at: gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:platform
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    MI_Instrument

    Count Component Code Type Description
    2 EK80 Simrad EK80 echosounder
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