gov.noaa.ncei:RL1706_ME70 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 2022-12-21 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) curve 1915 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 ME70 Water Column Sonar Data Collected During RL1706 2017-06-19 creation 2022-12-21 publication NOAA National Centers for Environmental Information RL1706_ME70 International DOI Foundation (IDF) doi:https://doi.org/10.25921/a53m-r797 NOAA National Centers for Environmental Information NCEI Metadata ID:RL1706_ME70 NOAA National Centers for Environmental Information custodian NOAA National Centers for Environmental Information publisher David Demer NMFS/SWFSC AST Supervisor/Senior Scientist 858-546-5603 8901 La Jolla Shores Drive La Jolla CA 92037 USA david.demer@noaa.gov principalInvestigator Kevin Stierhoff NOAA SWFSC AST Biologist 858-546-7180 8901 La Jolla Shores Drive La Jolla CA 92037 USA kevin.stierhoff@noaa.gov principalInvestigator DOC/NOAA/NMFS/SWFSC > Southwest Fisheries Science Center 858-546-7000 8901 La Jolla Shores Dr. La Jolla CA 92037 USA author The sampling resolution was not expected to allow for a comprehensive assessment of all anchovy sub-populations. In particular, those residing in the Southern California Bight and off the Columbia River plume would likely require additional effort given their patchy distribution. The modeled distribution of potential sardine habitat, and information recently gathered from other research projects (e.g., CalCOFI samples) or the fishing industry (e.g., sardine bycatch) were used to determine whether the survey domain also encompassed the northern sub-population of sardine. A brief, cooperative survey of CPS was also conducted in coordination with the F/V Lisa Marie in nearshore areas off Washington and Oregon. Two industry observers from Lisa Marie embarked Lasker before she conducted echosounder, sonar, and purse-seine sampling along nearshore extensions of Lasker’s transect lines. In the same region, Lasker coordinated with the fishing industry’s aerial-photographic sampling. Multi-frequency (18, 38, 70, 120, 200, and 333 kHz) General Purpose Transceivers (Simrad EK60 GPTs) and Wideband Transceivers (Simrad EK80 WBTs) were configured with split-beam transducers (Simrad ES18-11, ES38B, ES70-7C, ES120-7C, ES200-7C, and ES333-7C, respectively). The transducers were mounted on the bottom of a retractable keel or “centerboard”. The keel was retracted (~ 5-m depth) during calibration, and extended to the intermediate position (~7-m depth) during the survey. Exceptions were made during shallow water operations, when the keel was retracted to ~ 5-m depth; or during times of heavy weather, when the keel was extended to ~9-m depth to provide extra stability and reduce the effect of weather-generated noise. To minimize acoustic interference, transmit pulses from two multibeam sonars (Simrad ME70 and MS70), an omni-directional sonar (Simrad SX90), and acoustic Doppler current profiler (Teledyne RD Instruments Ocean Surveyor Model OS75) were triggered using a synchronization system (Simrad K-Sync). All other instruments that produce sound within the echosounder bandwidths were secured during survey operations. Exceptions were made during stations (e.g., plankton sampling and fish trawling) or in shallow water when the vessel’s command occasionally operated the bridge’s 50- and 200-kHz echosounders (Furuno), the Doppler velocity log (Sperry Marine Model SRD-500A), or both. Nighttime trawl sampling was conducted where echoes from CPS schools where observed earlier that day. Trawls were towed at ~ 4 kn for 45 min. The total catch from each trawl was weighed and sorted by species or groups. From the catches with CPS, up to 75 fish were selected randomly for each of the target species. Those were weighed (g) and measured to either their standard length (Ls; mm) for sardine, anchovy, and herring, or fork length (Lf ; mm) for jack mackerel and Pacific mackerel. Regional species composition was estimated from the nearest trawl cluster, i.e., the combined catches of up to three trawls per night, separated by ~ 10 nmi. During the day, fish eggs were collected using CUFES (Checkley et al., 1997), which collects water and plankton at a rate of ~640 l min-1 from an intake on the hull of the ship at ~ 3-m depth. The particles in the sampled water were sieved by a 505 μm mesh. All fish eggs were identified to lowest taxa, counted, and logged. Typically, the duration of each CUFES sample was 30 min, corresponding to a distance of 5 nmi at a speed of 10 kn. Because the duration of the initial stages of the egg phase is short for most fish species, the egg distributions inferred from CUFES indicate the nearby presence of actively spawning fish. CalCOFI Bongo Oblique (CalBOBL, or bongo) nets (71-cm diameter; 505-μm mesh) were used to sample ichthyoplankton and krill at each station. Where there was adequate depth, 300 m of wire was deployed and then retrieved at 20 m min-1, at a nominal wire angle of 45\0x0E. Paired vertical egg tow (Pairovet; formerly CalCOFI vertical egg tow or CalVET, (Smith et al., 1985)) nets (25-cm diameter; 150-μm mesh) were used to sample fish eggs from a depth of 70 m to the sea surface at a rate of 70 m min-1 in areas where their densities exceeded a threshold of > 0.3 eggs min-1. Day and night, conductivity and temperature versus depth to 350 m were measured with calibrated sensors on a CTD rosette or underway probe (UCTD) cast from the vessel. These data were used to estimate the time-averaged sound speed (Demer, 2004), for estimating ranges to the sound scatterers, and frequency-specific sound absorption coefficients, for compensating the echo signal for attenuation during propagation of the sound pulse from the transducer to the scatterer range and back (Simmonds and MacLennan, 2005). These data also provided indication of the depth of the upper-mixed layer, where most epipelagic CPS reside during the day. The objectives of the survey were to: 1) acoustically map the distributions and estimate the abundances of CPS, e.g., Pacific sardine (Sardinops sagax), Northern anchovy (Engraulis mordax), Pacific herring (Clupea pallasii), Pacific mackerel (Scomber japonicus), and jack mackerel (Trachurus symmetricus); and krill (euphausiid spp.); 2) characterize their biotic and abiotic environments, and investigate linkages; and 3) gather information regarding their life history parameters. The survey domain encompassed the anticipated distribution of northern subpopulation of sardine and Northern anchovy off the west coasts of the U.S. and Canada from approximately San Diego, CA and the north end of Vancouver Island, British Columbia. 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 North Pacific Ocean 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: NOAA Southwest Fisheries Science Center. 2022. ME70 Water Column Sonar Data Collected During RL1706. NOAA National Centers for Environmental Information. https://doi.org/10.25921/a53m-r797 [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. RL1706 largerWorkCitation operation California Current Ecosystem Survey (CCE) largerWorkCitation program eng; USA oceans geoscientificInformation -126.69449 -117.22607 32.61382 48.09341 2017-06-19T00:00:00 2017-08-08T11:59:59 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. ME70 1 Simrad ME70 raw files. See the Simrad ME70 interface specification manual for additional information. https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=RL1706&instruments=ME70 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 to provide additional public access to water column sonar data through the NOAA Open Data Dissemination project (NODD) 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 Unknown 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 2017-06-19T00:00:00 David Demer NMFS/SWFSC AST Supervisor/Senior Scientist 858-546-5603 8901 La Jolla Shores Drive La Jolla CA 92037 USA david.demer@noaa.gov principalInvestigator Simrad ME70 Echosounder ME70 Simrad - Kongsberg Maritime AS +47 3303 4000 (Norway) +47 3304 2987 (Norway) P.O. Box 111 Strandpromenaden 50 Horten 3191 Norway contact@simrad.com resourceProvider Simrad ME70 multibeam The Simrad ME70 is a high resolution scientific multibeam echo sounder with very low sidelobe levels. It is dedicated for collection of data in the water column. The multibeam echo sounder combines the large and flexible sampling volume of the multibeam swath with the accuracy of the quantitative scientific echo sounder. A bathymetric option is also available to provide a high resolution seabed mapping capability, and the possibility to study the fish habitat. RL1706_ME70 completed NOAA Ship Reuben Lasker (R228) Reuben Lasker (RL) Funded under the American Recovery and Reinvestment Act and built by Marinette Marine Corporation in Wisconsin, the ship¿s primary objective is to support fish, marine mammal, and turtle surveys off the U.S. West Coast and in the eastern tropical Pacific Ocean. The ship has a low sound signature to reduce reactions of fish to the presence of the ship and provides for a low signal-to-noise ratio for acoustic sensors. This allows scientists to study fish populations and collect oceanographic data with fewer effects on fish and marine mammal behavior. The multi-frequency scientific sonars provide the ability to conduct acoustic surveys that can distinguish fish types, estimate biomass, determine fish school shapes, and provide data on sea floor topography. Reuben Lasker is also equipped with oceanographic sampling and measurement systems, instrumented trawls, longlines, and plankton nets for direct sampling. The ship has a dynamic positioning system to steer along a pre-determined trackline and to accurately hold the ship in a fixed position. The ship is also equipped with meteorological data collection systems and has extensive wet and dry labs to provide maximum utilization of every hour at sea. These technologies will dramatically improve the ability to conduct diverse data collection operations as required by its mission. The ship is named after Dr. Reuben Lasker (1929-1988), who served as the Director of SWFSC's Coastal Fisheries Division and as adjunct professor at Scripps Institution of Oceanography, U.C. San Diego. Dr. Lasker built a renowned research group that focused on the recruitment of young fish to the adult population - a topic with implications for fisheries management throughout the world. DOC/NOAA/OMAO/MOC-P > Marine Operations Center - Pacific, NOAA Marine Operations, NOAA Office of Marine and Aviation Operations, NOAA, U.S. Department of Commerce 206-553-2246 NOAA/OMAO/MOC-P 1801 Fairview Avenue East Seattle WA 98102-3767 USA CO.MOC.Pacific@noaa.gov pointOfContact DOC/NOAA/NMFS/SWFSC > Southwest Fisheries Science Center 858-546-7000 8901 La Jolla Shores Dr. La Jolla CA 92037 USA pointOfContact Simrad ME70 Echosounder ME70 Simrad - Kongsberg Maritime AS +47 3303 4000 (Norway) +47 3304 2987 (Norway) P.O. Box 111 Strandpromenaden 50 Horten 3191 Norway contact@simrad.com http://www.simrad.com/www/01/nokbg0240.nsf/AllWeb/96CD4279D3997892C125719A003A3862?OpenDocument ME70 documentation Information on the Simrad ME70 inculding file format information information resourceProvider Simrad ME70 multibeam The Simrad ME70 is a high resolution scientific multibeam echo sounder with very low sidelobe levels. It is dedicated for collection of data in the water column. The multibeam echo sounder combines the large and flexible sampling volume of the multibeam swath with the accuracy of the quantitative scientific echo sounder. A bathymetric option is also available to provide a high resolution seabed mapping capability, and the possibility to study the fish habitat. Simrad EK60 Echosounder EK60 Simrad - Kongsberg Maritime AS +47 3303 4000 (Norway) +47 3304 2987 (Norway) P.O. Box 111 Strandpromenaden 50 Horten 3191 Norway contact@simrad.com http://www.simrad.com/www/01/nokbg0240.nsf/AllWeb/A25148D8E9F00D0DC12570DE0050A7CB?OpenDocument Simrad EK60 Scientific echo sounder Information on the Simrad EK60 including file format documentation. information resourceProvider Simrad EK60 singlebeam The Simrad EK60 Scientific Sounder system is a new generation fishery researchtool, based on experience from the EK500. The new electronic hardware is combined with up to date PC processing and Windows operation. The EK60 provides facilities for accurate echo sounding, data storage, data analysis and reporting results. The system communication is through Ethernet, which gives flexibility in the location of the EK60 system units and allows easy access to data from other instruments or stations on a vessel network. A post processing software, BI60, is also included in the EK60 system.