Description
The 2021 North Atlantic Stepping Stones: New England and Corner Rise Seamounts expedition (EX-21-04) was a combined mapping and remotely operated vehicle (ROV) expedition to the seamounts of the Northwest Atlantic that took place between June 30 and July 29, 2021. Operations during this 30-day at sea expedition included a combination of ROV dives in support of NOAA Ocean Exploration and its partner priorities as well as exploratory mapping operations targeting areas containing no or poor quality modern mapping data. The initial focus was on the U.S. Northeast Seamount and high seas areas, however, during the expedition weather altered the planned transect to outside Bermudan waters where three dives took place before rejoining the planned dive sites exploring a total of 19 seamounts and one canyon (Hydrographer) for water column exploration. During the expedition, 20 Deep Discoverer ROV dives were conducted from 300 m to 4187 m water depth for a total of 154 hours of bottom time, and surveyed using EM 304 multibeam sonar 54,710 square km over 30 days at sea. All data associated with this expedition have been archived and are publicly available through the NOAA Archives.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+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 |
| 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 |
| NCEI Contact Information | Unknown | Information for contacts at NCEI. | Open resource |
| Limits of Oceans and Seas | Maintained by IHO | Open resource | |
| Limits of Oceans and Seas | Maintained by IHO | Open resource |
Tags
- acoustic sounders
- aquatic sciences
- conductivity
- ctd
- deep discoverer rov
- deep-sea exploration
- depth
- doc/noaa/nesdis/ncei
- doc/noaa/oar/oer
- earth science
- echo sounders
- expedition
- expendable bathythermographs
- exploration
- exploration vessel
- explorer
- global positioning system
- gps
- high-definition underwater video
- mapping survey
- marine education
- marine environment monitoring
- mbes
- multibeam
- multibeam backscatter
- multibeam mapping system
- multibeam sonar
- national centers for environmental information
- nesdis
- noaa
- noaa fleet
- noaa ship okeanos explorer
- north atlantic 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
- positioning/navigation
- r337
- science
- scientific computing system
- scientific mission
- scientific research
- scs
- sea
- seirios camera sled
- single beam sonar
- single-beam sonar
- singlebeam sonar
- stewardship
- sub-bottom profile
- systematic exploration
- technology
- telepresence
- temperature
- thermosalinographs
- transformational research
- undersea
- underwater
- underwater video
- underwater video camera
- u.s. department of commerce
- water column backscatter
- wind monitor
- xbt