Polar Exchange at the Sea Surface

Project Description
The Polar Exchange at the Sea Surface (POLES) is an EOS
interdisciplinary project investigating the exchange of mass and
energy at the air-ice-ocean interface in the polar regions. POLES is
a broad investigation into the role of polar regions in the global
energy and water cycles, and the atmospheric, oceanic and sea ice
processes that determine that role. The primary importance of
investigation is to show how these polar processes relate to global
climate. The POLES program is located at the Polar Science Center,
Applied Physics Laboratory, University of Washington. The primary goal
of the Earth Observing System (EOS), a program of the National
Aeronautics and Space Administration (NASA), is to advance the
scientific understanding of the entire Earth system.

Scientists from 8 disciplines and 4 institutions have joined together
in the POLES investigation to use the rich array of satellite data
collected from the polar regions. The data have been collected using a
variety of satellite-based sensors, including passive microwave
radiometers, the TIROS-N Operational Vertical Sounder (TOVS), Advanced
Very High Resolution Radiometer (AVHRR), and synthetic aperture radar
(SAR). POLES scientists use satellite data to build an understanding
of long-term patterns in the fluxes of heat, moisture, and momentum
across the surface of the polar oceans. Their goal is to assimilate
satellite (and some buoy) observations into polar ocean-atmosphere
models that not only refine the treatment of surface exchange
processes, but also quantify the roles of horizontal transports,
oceanic mixing, and deep convection. With better use of data,
researchers can move beyond present climatological descriptions and
document interannual variability.

For more information visit the POLES Home Page at:
or contact