gov.noaa.ncei:NOAA-MC20-Survey_M3 eng; USA utf8 series Water Column Sonar Series-Level Metadata NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2021-09-14 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) curve 96 World Geodetic System 1984 WGS 84 2007-08-27 revision https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:crs:EPSG::4326 Vertical Datum: Unknown Vertical Datum: Unknown M3 Water Column Sonar Data Collected During NOAA-MC20-Survey 2018-09-01 creation 2019-07-22 publication NOAA National Centers for Environmental Information NOAA-MC20-Survey_M3 International DOI Foundation (IDF) doi:10.25921/3da5-3y10 NOAA National Centers for Environmental Information NCEI Metadata ID:gov.noaa.ncei:NOAA-MC20-Survey_M3 NOAA National Centers for Environmental Information custodian NOAA National Centers for Environmental Information publisher Andrew Mason Stressor Detection and Impacts Division Physical Scientist (240)533-0357 1305 East West Hwy, Bldg. SSMC4 Silver Spring MD 20910 USA andrew.mason@noaa.gov principalInvestigator Bureau of Safety and Environmental Enforcement(BSEE) (703)787-1567 45600 Woodland Road Sterling VA 20166 USA david.fish@bsee.gov author In 2018, NOAA and its partners conducted a comprehensive assessment of the MC20 site. This data compilation contains ship-based surface echosounder surveys characterizing the spatial structure of the plumes. Data were collected using three frequency Simrad EK80 splibeam echosounders and Kongsberg M3 multibeam echosounder from a ship. Inspection of the acoustic backscatter indicates multiple plume components emitting from separate origins on the seafloor within an erosional pit at the northwest corner of the downed jacket. Broad-band acoustic frequency backscatter intensity suggests indicators of oil and gas plumes within the water column. Closer inspection using ROV-integrated three frequency Simrad EK80 splitbeam echosounders and Kongsberg M3 multibeam sonars confirm the presence of at least four plume sources emitting from the seafloor with acoustic signatures indicating oil separating from gas as well as oil and gas mixtures. In subsequent chapters, the separation of oil from gas from each of the seep sources was verified using in situ optical and direct capture methods. The assessment provides further evidence of an oil and gas leak that has likely occurred since the original toppling of the MC20 platform. In 2004, as Hurricane Ivan swept through the northern Gulf of Mexico, the MC20 Taylor Energy Company oil and gas platform collapsed and moved approximately 210 m downslope. In response to a request by the Bureau of Safety and Environmental Enforcement (BSEE), the National Oceanic and Atmospheric Administration’s (NOAA) National Centers for Coastal Ocean Science (NCCOS), in cooperation with NOAA’s Office of Response and Restoration (ORR) conducted a survey at the Mississippi Canyon Block 20 site of the former location of the Taylor Energy Company oil and gas platform located in the Northern Gulf of Mexico. The MC20 site is associated with persistent plumes of oil and gas and surface oil slicks. These slicks are visible on the ocean surface from ships and by aerial and satellite remote sensing and are a means of measuring the output of hydrocarbons from the site. However, the magnitude of oil discharge through the water and to the surface needed to be compared to collections and measurements in the water column and sediments. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA National Centers for Environmental Information Water Column Sonar Data Manager (303) 497-4742 325 Broadway, Mail Code E/NE42 Boulder CO 80305-3328 USA wcd.info@noaa.gov pointOfContact notPlanned Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering Earth Science > Oceans > Aquatic Sciences > Fisheries Earth Science > Oceans > Ocean Acoustics Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic Earth Science > Biosphere > Ecosystems > Marine Ecosystems Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography theme Global Change Master Directory (GCMD) Science Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System 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 custodian Gulf of Mexico place International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) 2010-08-24 revision International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) 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 resourceProvider DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System 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 custodian Vertical Location > Water Column place Global Change Master Directory (GCMD) Location Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System 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 custodian In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System instrument Global Change Master Directory (GCMD) Instrument Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System 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 custodian otherRestrictions Cite as: Bureau of Safety and Environmental Enforcement(BSEE). 2021. M3 Water Column Sonar Data Collected During NOAA-MC20-Survey. NOAA National Centers for Environmental Information. https://doi.org/10.25921/3da5-3y10 [access date] otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. 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. Not subject to copyright protection within the United States. otherRestrictions Resource may not be available for up to one year after initial collection. NOAA-MC20-Survey largerWorkCitation operation eng; USA oceans geoscientificInformation -88.97506 -88.93873 28.93249 28.94878 2018-09-01T00:00:00 2018-09-07T11:59:59 Trackline physicalMeasurement NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor Free Contact the NCEI Water Column Sonar Data Manager to order data. M3 1 Kongsberg/Simrad .raw files are generated by ME70, EK60 or ES60 instruments. They contain power and optionally angular position data with each beam/frequency identified by an independent channel. See the Simrad interface specification manual for further information. The .wcd files are generated by Kongsberg EM302 or EM122 instruments. See Kongsberg documentation for more information. https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=NOAA-MC20-Survey&instruments=M3 HTTPS Water Column Sonar Data Map Viewer Interactive map viewer to allow discovery and access to water column sonar data search https://registry.opendata.aws/ncei-wcsd-archive/ HTTPS AWS Cloud Storage Bucket AWS Cloud Storage provides additional public access to water column sonar data through the NOAA Big Data Project download https://www.ngdc.noaa.gov/mgg/wcd/ HTTPS Water Column Sonar Data Archive Homepage Web page containing information on the water column sonar data archive. information collectionHardware Instrument calibration information Uncalibrated series Horizontal Positional Accuracy Positional accuracy dependent on navigation GPS, ship motion correction, and sound velocity profile accuracy. true Vertical Positional Accuracy Vertical accuracy is dependent on navigation GPS and ship motion corrections. true Raw unprocessed data files 2018-09-01T00:00:00 Andrew Mason Stressor Detection and Impacts Division Physical Scientist (240)533-0357 1305 East West Hwy, Bldg. SSMC4 Silver Spring MD 20910 USA andrew.mason@noaa.gov principalInvestigator Kongsberg M3 Echosounder Kongsberg M3 Kongsberg Maritime AS +47 3303 4000 (Norway) +47 3304 2987 (Norway) 5373 W. Sam Houston Parkway N, Suite 200 Houston 77041 USA km.sales.houston@kongsberg.com https://www.kongsberg.com/maritime/products/mapping-systems/mapping-systems/sonars/sonars-for-marine-site-inspection/m3/ resourceProvider Konngsbeg M3 echosounder The M3 Sonar uses two sets of complementary transducers which allow it to generate both imaging and bathymetric data with the same head. Unique to the M3 Sonar is the patented eIQ (enhanced image quality) mode of operation that generates multibeam images with unprecedented clarity. NOAA-MC20-Survey_M3 completed R/V Brooks McCall 1999 creation Brooks McCall The Brooks McCall is one of five research vessels owned and operated by TDI-Brooks Interanational, Inc., which has a focus on petroleum geochemistry, surface geochemical exploration, oil spill response, oceanographic surveys, environmental chemistry, and multi-disciplinary environmental assessments. TDI-Brooks International, Vessel Marine Operations 979-373-0411 1200 East Brazos Street Freeport TX 77541 USA 8am-5pm, Monday through Friday owner