Description
From August 1 - 17, 2023 (Unalaska, Alaska to Kodiak, Alaska), NOAA Ocean Exploration conducted the Seascape Alaska 4: Gulf of Alaska Deepwater Mapping expedition (EX2305), a mapping expedition to the Gulf of Alaska. Operations during this 17-day expedition included mapping 24,032 sq. km of seafloor (23,591 sq. km in the U.S. Exclusive Economic Zone) and calibrating the 18, 38, 70, 120, and 200 kHz frequency EK60/EK80 split-beam sonars. All data associated with this expedition have been archived and are publicly available through the NOAA archives.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| NCEI Contact Information | Unknown | Information for contacts at NCEI. | Open resource |
Tags
- alaska
- aleutian islands
- aquatic sciences
- bathymetric gaps
- bathymetry
- bathymetry/seafloor topography
- benthic habitats
- chemosynthetic communities
- ctd
- deep-sea coral and sponge communities
- deep-sea exploration
- deep-water habitats
- deep-water mapping
- doc/noaa/nesdis/ncei
- doc/noaa/oar/oer
- earth science
- efh
- em304
- essential fish habitats
- expedition
- exploration
- exploration vessel
- explorer
- fish habitats
- gulf of alaska
- habitat areas of particular concern
- hapc
- high-definition underwater video
- kodiak
- mapping
- mapping survey
- marine education
- marine environment monitoring
- multibeam
- multibeam backscatter
- multi-beam sonar
- multibeam sonar
- national centers for environmental information
- nesdis
- noaa
- noaa fleet
- noaa ship okeanos explorer
- north pacific ocean
- ocean
- ocean discovery
- ocean education
- ocean exploration
- ocean exploration and research
- oceanic & atmospheric research
- ocean literacy
- ocean research
- oceans
- oer
- office of ocean exploration and research
- okeanos
- okeanos explorer
- pacific ocean
- r337
- science
- scientific computing system
- scientific mission
- scientific research
- scs
- sea
- seabed 2030
- seafloor topography
- seamounts
- seascape alaska
- shakedown
- single beam sonar
- single-beam sonar
- singlebeam sonar
- site characterization
- sonar anomalies
- split beam sonar
- stewardship
- sub-bottom profile
- systematic exploration
- technology
- telepresence
- transformational research
- unalaska
- undersea
- underwater
- underwater video
- u.s. department of commerce
- water column backscatter