2012-2013 Science Planning Summaries
U.S. Antarctic Program - Science Support Section United States Antarctic Program United States Antarctic Program Logo National Science Foundation Logo
Air-sea fluxes of momentum, heat, and carbon dioxide at high wind speeds in the Southern Ocean

Program Manager:
Dr. Peter Milne


ASC POC/Implementer:
Addie Coyac / Robert Kluckhohn

Dr. Scott Miller (Principal Investigator)

University at Albany
Atmospheric Sciences Research Center
Albany, New York

Supporting Stations:  RV/IB Nathaniel B. Palmer
Research Locations:  All vessel cruise tracks

Project Description:
An understanding of the exchange of carbon dioxide (CO2) between the air and sea in the Southern Ocean, in particular at high wind velocity, will enable researchers to better assess how projections of global climate warming in a windier world could affect the ocean’s carbon uptake and alter the ocean’s heat budget at high latitudes. During all cruises of the NBP this project’s installed instrumentation will make continuous underway measurements of momentum, heat, water vapor and CO2 using micrometeorological eddy covariance techniques adapted to ship-board use. Data from another project (Colm Sweeney’s O-214), which also makes continuous underway measurements, will be used in the overall analysis thus enabling internal consistency checks.

Field Season Overview:
One or two participants will deploy to a port call to install the equipment and will take part in an initial cruise to monitor the equipment and make adjustments. Staff technicians will provide support for mounting and installing the flux package on the bow mast and cable and tubing runs to the bosun locker. Anemometers will be installed at several locations at the bow and cameras to image the sea surface will (likely) be located in the ice tower above the bridge. While the ship is underway, time series data will be collected at 10-20 Hz and a daily Matlab script will compute preliminary air-sea fluxes. These data, along with system diagnostic values and shipboard meteorological measurements will be sent to the PI's lab at SUNY Albany by email (estimated 100-200 Kbytes per day). The raw data will be stored to USB hard drives that will be sent by regular mail after each cruise.

Deploying Team Members:

  • Brian Butterworth
  • Scott Miller (PI)

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Curator: Esther L. Hill PhD, Antarctic Support Contract   |   NSF Official: Alexandra Isern, Office of Polar Programs