Deep Ocean Ventilation Through Antarctic Intermediate Layers

Project Description

The program builds upon the two preceding iAnzone programs and enters a second iANZONE phase whose purpose is to better define and understand the role of Antarctic waters and processes in the global ocean and climate system. DOVETAIL will focus on escape of the recently ventilated deep water from the Weddell Sea into the Global Ocean - the final stage in its role of ventilating deep ocean waters.

DOVETAIL priorities parallel, and the results will contribute to, ongoing global change research. The processes responsible for vertical and horizontal fluxes within the ocean and associated interaction with the sea ice and atmosphere in polar regions must be properly represented. The DOVETAIL study region, off the tip of the Antarctic Peninsula, serves as the primary gateway between the southern polar waters and the global ocean. This region can therefore be considered as a "vital" location for long term monitoring of the discharge of cold Antarctic Water into the global ocean. Results from the DOVETAIL experiment will aid in establishing long-range monitoring of this critical region. Both the Global Ocean Observing System (GOOS) and the ocean component of the Global Climate Observation System (GCOS) have been established by a number of international bodies to provide such monitoring data.



Program Components

Current Observations
R. Muench
Earth and Space Research
Thermohaline and Oxygen Stratification Studies
A. Gordon and B. Huber
Lamont-Doherty Earth Observatory
P. Schlosser
Lamont-Doherty Earth Observatory
W. Smethie
Lamont-Doherty Earth Observatory
Drifting Surface Buoys
D. Martinson
Lamont-Doherty Earth Observatory

Designed and Maintained by: Bruce Huber
Lamont-Doherty Earth Observatory of Columbia University