TFO Seamounts: ocean physics
CompletedPlanned route: 2 segments · ~4 days steaming
Operating area: North Atlantic
Route: Woods Hole (Massachusetts) - United States → Woods Hole (Massachusetts) - United States
Project aboard
Our program will measure physical oceanographic and acoustic quantities near the Atlantis II seamounts in order to better understand i) mixed-layer dynamics; ii) turbulence and vertical motions due to tidal and mean flows past the seamounts and iii) ambient noise and acoustic propagation. We will measure the oceanographic quantities from the ship with our Fast CTD and epsilometer winched profilers, and by deploying several profiling moorings. Dr. Hodgkiss will simultaneously deploy his acoustic source and billboard receive array.
People aboard
- Matthew Alford · Principal investigator
Party size: 20
Estimated vacant berths: 14
Equipment
Aboard the vessel
- Dynamic Positioning (DP)
- Underway Seawater System
- Meteorological Data
- ADCP/UHDAS – range < 80m (eg. 300kHz)
- ADCP/UHDAS – range 250-350m (e.g. 150kHz)
- ADCP/UHDAS – range 1000m-1200m (e.g. 38kHz)
- ADCP/UHDAS – range 500-750m (e.g. 75kHz)
- Multibeam - Deep Water (EM122, EM124)
- Biological multi-frequency echosounder - EK80
- Ultra-Short Base-Line Acoustic Navigation System
Pooled / portable
- CTD
- Winch Pool Portable Winch
Science party brings
- Science-provided vans ×2
Schedule data from UNOLS Marine Facilities Planning · operator cruise code AR73 · MFP reference 21/204 · synced Sep 24, 2026
