Offshore Galway (CV14_02, EM2040)

Offshore Galway (CV14_03, EM2040)

Cruise CV13_01 (EM3002). Unknown

TRASNA (TRASNA: Transocean Survey North Atlantic). Coverage includes a swath of multibeam data parallel to the Atlantic Transect acquired in 2015. the primary focus of the survey was on a previously identified seabed feature in the Mid-Atlantic Ridge. The survey was conducted between May 12th and May 21 and consist of a single transit line collected from St. Johns to Galway. Survey was conducted at high speed of 10-12 kt due to time constrains and the need to reach the priority area in the Mid Atlantic Ridge (MAR) where sampling and video drops were acquired. The passage was affected by severe inclement weather who affected multibeam quality of the inital few days. Quality then became better in proximity of the Mid Atlantic Ridge but nevertheless multibeam quality is moderate to poor. Weather improved on the second half of the passage allowing the collection of good multibeam data. At the MAR location, 1 hour video drop camera and few dredge samples were also collected. Further survey work was carried out on the Porcupine Bank area where Chirp and Sparker data were acquired to improve the knowledge about the glacial hystory of the Porcupine.

None

DFOs 2022 Maritimes and Newfoundland AZMP, and AZOMP Hydrographic Mission

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The survey area is located 12 miles off the coast of southern California between Port Hueneme in the south and Purisima Point in the north. The waters surrounding the Channel Islands National Marine Sanctuary (CINMS) are highly productive and are home to recreational and commercial fishing efforts, and regularly host kayakers, surfers, sightseers, whale watchers, researchers, and Channel Islands National Park concessionaires, who all access the sanctuary via boats. Correspondingly, the abundance of sea life and aquatic habitats drives a thriving industry of recreational and commercial fishing that brings varied vessel traffic through the waters of CINMS. Additionally, major mainland port traffic transiting to and from Los Angeles and Long Beach, California routes large cargo and tanker vessels close to CINMS boundaries. The Ports of Los Angeles and Long Beach are top 10 ports in the United States for containers and tonnage. This poses a serious risk to life, property, and the delicate ecosystem of the area. Multibeam, backscatter, and water column data have been collected in support of the Bureau of Ocean Energy Management Pacific Region area around selected offshore platforms and pipelines. Survey data from this project is intended to supersede all prior survey data in the common area.

DFOs 2022 Maritimes and Newfoundland AZMP, and AZOMP Hydrographic Mission

This project was conducted in collaboration with NOAA's Office of Coast Survey (OCS) and the Coastal and Marine Hazards and Resources Program (CMHRP) of the USGS across several large portions of the Cascadia continental margin, offshore of California and Oregon. The primary objective of this seafloor mapping project will be to provide multibeam bathymetry, acoustic backscatter data, and water column data to address USGS Hazard Mission Area objectives by providing key offshore constraints that feed directly into earthquake, tsunami, and landslide hazard assessments and situational awareness products. High-resolution multibeam and backscatter imagery allow identification and characterization of active faults and submarine landslides. These data will also provide an important pre-event bathymetric baseline for rapid assessment of seafloor deformation after a large earthquake. Water column data will expand mapping of seafloor seep distribution, which is key for understanding the relationship between seafloor failure and seismogenesis along the Cascadia margin. This project also supports the Expanding Pacific Research and Exploration of Submerged Systems (EXPRESS) campaign, which is comprised of a large and diverse team of federal and non-federal partners targeting deepwater areas off of the U.S. Pacific coast. This project also supports NOAA's Integrated Ocean and Coastal Mapping mantra, "map once, use many times" and data from this project will be further used to update NOAA's nautical charting products within the area. This project will cover a total of 1,500 SNM and survey data from this project is intended to supersede all prior survey data in the common area.