2015-2016 USAP Field Season
Ocean Observatories Initiative (OOI) Southern Hemisphere cruises
Mr. Michael Kelly
Project Web Site:
Supporting Stations: RV/IB Nathaniel B. Palmer
The Ocean Observatories Initiative (OOI) has constructed a networked infrastructure of sensor systems to measure physical, chemical, geological, and biological variables in the ocean and on the seafloor. This season, the OOI team will only service the Coastal & Global Scale Node (CGSN) at global site 55° S, 90° W (Southern Ocean) from the RVIB Nathaniel B. Palmer (NBP). On this cruise, the team will recover and redeploy the array, which consists of several moorings. The platforms carry multidisciplinary instrumentation and provide the capability for real-time communication of data and control of sampling. The surface mooring captures the surface forcing and upper-ocean variability. The profiling mooring measures the entire water column. Additionally, three sub-surface moorings will obtain vertical profiles and sample the mesoscale variability at the site.
Field Season Overview
Researchers will make two cruises on the NBP, both departing from and returning to Punta Arenas, Chile. On the first cruise, NBP15-10, the team will sail to locations in the Argentine Basin where they will deploy one Global Surface Mooring, one Global Hybrid Profiler mooring, two subsurface Mesoscale Flanking Moorings, and five gliders. The moorings will support sensors for measurement of air-sea fluxes of heat, moisture and momentum, and physical, biological and chemical properties throughout the water column. Gliders will be equipped with acoustic modems to relay data from the mesoscale flanking moorings to shore via satellite telemetry and will sample within and around the triangular array. These gliders will carry sensor suites with the capability to alter sampling rates during a mission. On the second cruise, NBP15-11, the team will sail to locations in the Southern Ocean where they will deploy a similar suite of moorings and gliders.
Deploying Team Members