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OOI-Pioneer Fall 2025

Completed
Neil Armstrong

Neil Armstrong

Woods Hole Oceanographic Institution · USA

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PortPlanned routeMooring / vehicle

Planned route: 6 segments · ~10 hours steaming · 7 stations

Operating area: Approximately 35-50 nm east of Nags Head, NC

›2 legs· Woods Hole (Massachusetts) - United States → Woods Hole (Massachusetts) - United States
  1. 1Woods Hole (Massachusetts) - United States→Woods Hole (Massachusetts) - United StatesOct 30 – Nov 9, 2025 · 10 d
  2. 2Woods Hole (Massachusetts) - United States→Woods Hole (Massachusetts) - United StatesNov 10 – Nov 19, 2025 · 9 d

Oct 30 – Nov 19, 202520 days at seaactual: departed Oct 30, 2025, arrived Nov 19, 2025

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Project aboard

First major infrastructure deployment at the Mid-Atlantic Bight, off of North Carolina, for the Pioneer Array of the National Science Foundation’s Ocean Observatories Initiative (OOI). The Pioneer MAB Array includes a network of moorings and autonomous robotic vehicles to monitor the waters of the continental shelf, slope, and the shelf break front where nutrients and other properties are exchanged between the coast and deep ocean. Data from the Pioneer Array will provide new insights into coastal ocean processes such as shelf/slope nutrient exchange, air-sea property exchange, carbon cycling, and ocean acidification that are important to the North Carolina shelf and to continental ecosystems world wide. For further information, see http://www.oceanobservatories.org


People aboard

  • Deidra Emrich · Principal investigator

Party size: 22

Estimated vacant berths: 12

Equipment

Aboard the vessel

  • Ship Fitted Winches & Wires
  • Crane
  • Stern A-Frame
  • Navigation - Heading/Position
  • Dynamic Positioning (DP)
  • Underway Seawater System
  • pCO2
  • Meteorological Data
  • Echosounder, 12kHz
  • Echosounder, 3.5kHz CHIRP
  • ADCP/UHDAS – range < 80m (eg. 300kHz)
  • ADCP/UHDAS – range 250-350m (e.g. 150kHz)
  • ADCP/UHDAS – range 1000m-1200m (e.g. 38kHz)
  • Multibeam - Deep Water (EM122, EM124)
  • Multibeam - Shallow-water (EM710/712/2040/Seabat 7100)
  • Biological multi-frequency echosounder - EK80

Pooled / portable

  • CTD
  • Gyrocompass

Science party brings

  • Portable Laboratory Vans/Containers - Science Supplied
  • Science Supplied Portable Winch
  • Science-provided vans ×4

Schedule data from UNOLS Marine Facilities Planning · operator cruise code AR98-A&B_Pioneer · MFP reference 24/4203 · synced Sep 24, 2026