EK80 Water Column Sonar Data Collected During GU1903
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C. Operating Area (include optional map/figure showing op area) Western Atlantic along the U.S. Mid-Atlantic Coast, cross-shelf, through Gulf Stream, out to blue water. Operations will be conducted in and around York Bight, Long Island Sound and Cape Cod. Gulf Stream eddies will be sampled along the way. Plan includes sampling transient features present in the region at the time of the cruise. Cruise begins in Norfolk, VA and will end in Norfolk, VA, US. Tentative cruise track (Fig. 1) is shown below along with daily locations in Table 1. Cruise track will be adjusted to maximize characterization of processes and features present during time of cruise. In addition, one of the issues with our work is that we need cloud free skies to maximize our work. We will be working with the crew to make adjustments to the cruise track daily. D1. VIIRS Cal/Val Objectives Observe and measure inherent and apparent optical properties of water masses for three primary objectives: 1) JPSS VIIRS ocean color satellite validation; 2) Inter-calibration and intercomparison of validation techniques and measurements; and 3) optical characterization of ocean variability (i.e. coastal, near-shore, cross-shelf, eddies, fronts, filaments, blue water).
EK60 Water Column Sonar Data Collected During GU1304 123
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1. Conduct visual line-transect surveys to estimate the abundance and spatial distribution of cetaceans in U.S. Atlantic waters. 2. Conduct passive acoustic surveys simultaneous with visual surveys to provide supplemental information on cetacean abundance and spatial distribution. 3. Collect tissue samples (biopsies) of select cetaceans from the bow of Gordon Gunter. 4. Collect data on distribution and abundance of sea turtles, seabirds, and other marine life. 5. Collect oceanographic and environmental data including scientific echosounders (EK60) and acoustic Doppler current profiler (ADCP) data to quantify acoustic backscatter due to small fish and zooplankton. 6. Collect vertical profiles of hydrographic parameters (e.g., temperature, salinity, oxygen concentration) using CTD and XBTs.
EK60 Water Column Sonar Data Collected During GU1402
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AMAPPS-Cetacean and Turtle Abundance Spring Survey (GU1402, EK60). The AMAPPS survey primarily focuses on beaked whale species, with the following objectives: 1) Develop a better understanding of beaked whale habitat use and site fidelity for abundance and monitoring of critical areas, 2) Quantify efficacy of passive acoustic monitoring for detection and abundance of these species, through controlled methodological tests and in comparison to a bottom-mounted recorders (MARU), 3) Determine the distribution and relative abundance of plankton and prey species, 4) When possible, collect identification photographs and biopsy samples.
EK60 Water Column Sonar Data Collected During GU1305
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Northeast Integrated Pelagic Survey (GU1305, EK60). During the survey we will quantify the spatial distribution of the following parameters: water currents, water properties, phytoplankton, microzooplankton, mesozooplankton, pelagic fish and invertebrates, sea turtles, marine mammals, and sea birds. We will use traditional and novel techniques and instruments. In essence, the approaches of the Ecosystem Monitoring survey and the NEFSC Herring Acoustic survey are combined here and augmented to include a broad array of measurements of the pelagic ecosystem. Operational objectives are to: (1) collect underway data using TSG, SCS, and ADCP; (2) complete CTD and bongo operations at stations throughout area, (3) calibrate the EK60 Scientific Sounder, (4) conduct acoustic surveys using the EK60, (5) collect biological data to verify species-specific acoustic measurements using midwater trawls, (6) collect marine mammal and seabird observations.
EK60 Water Column Sonar Data Collected During EX1905L2
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Okeanos Explorer (EX1905L2): New England and Canada (ROV and Mapping) (EK60). This 21-day expedition leg will start in Halifax, Nova Scotia, on August 26, 2019, and end in North Kingstown, Rhode Island, on September 15, 2019. The expedition will include 24-hour-a-day operations, including daytime ROV dives to depths ranging between 250-3,000 meters (~820-9,843 feet), overnight mapping operations to depths of 5,000 meters (16,404 feet), as well as continuous shore-side participation via telepresence technology. ROV dives will focus on exploring submarine canyons and slope habitats, seamounts, deep-sea coral and sponge communities, midwater habitats, unique geological features, and other poorly known deep-sea habitats. Mapping operations will concentrate on seafloor and water column areas with little or no high-quality sonar data, as well as being used to support ROV operations and identify potential maritime heritage sites. Data collected on this expedition will support the development of habitat suitability models and geohazard models and enhance our understanding of poorly explored deepwater areas offshore of the U.S. Mid-Atlantic, New England, and Nova Scotia.
EK60 Water Column Sonar Data Collected During EX1903L2
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Okeanos Explorer (EX1903L2): Mid and Southeast US (ROV and Mapping) - 2019 (EK60). Windows to the Deep 2019: Exploration of the Deep-sea Habitats of the Southeastern United States was a 38-day, two-leg, telepresence-enabled expedition on NOAA Ship Okeanos Explorer to collect data on priority exploration areas identified by the ocean management and scientific communities. During the expedition, scientists explored a diversity of features with mapping and remotely operated vehicle (ROV) operations, including deep-sea fish habitats, deep-sea coral and sponge communities, midwater habitats, cold seeps, submarine canyons, submarine landslides, and other unique geological features.
EK60 Water Column Sonar Data Collected During EX1702
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Operations will include the use of the ship's deep water mapping systems (Kongsberg EM302 multibeam sonar, EK60 split-beam fisheries sonars, Knudsen 3260 chirp sub-bottom profiler sonar, and Teledyne Acoustic Doppler Current Profilers), XBT and Underway CTD casts in support of multibeam sonar mapping operations, OER's 6000 m two-body ROV Deep Discoverer and Seirios, and the ship's high-bandwidth satellite connection for continuous real-time ship-to-shore communications.