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APECS Virtual Poster Session
2011 September – Sea Ice from APECS Webinars on Vimeo.
Session Chairs:
Penelope Wagner – University of Delaware, USA
Angelika Renner – Norwegian Polar Institute, NorwayPresentations:
Antarctic Sea Ice: International Polar Year Cruise-Results from the SIMBA Field Campaign (Sept – Oct 2007)
--- Stephen Ackley, University of Texas – San AntonioAspects of the Biology of Sea Ice
--- Rolf Gradinger, University of Alaska - FairbanksSea Ice Detection with Advanced Scatterometer
--- Steve Reeves, Brigham Young University, USAArctic Sea Ice Education Package: and People of a Feather
--- Joel Heath, University of British Columbia, Canada -
APECS Webinars
Measurements of the Sea Ice Using Airborne Electromagnetic Induction System by Justin Beckers
Cecilia Bitz (University of Washington, USA) and Julienne Stroeve (National Snow and Ice Data Centre/University of Colorado, USA)
APECS-WWRP-Polar Prediction Project Webinar Series - Part 2: Progress and, Challenges in Predicting Arctic Sea Ice
Sea Ice
Sea ice is defined as ice that grows in the ocean. It is an integral component in an intricate ecosystem that provides stability and nourishment in the food web in the Arctic and Antarctic regions. Though this is a significant component in ecological, biogeochemical, and geophysical systems at the poles, it also influences oceanic and atmosphere interaction on a global level. The physical structure of sea ice provides a significant contribution to Earth's ability to reflect and absorb incoming solar radiation. The reflectivity studied is known as albedo, which is the ratio of outgoing reflected radiation from the surface to incoming radiation. Optical properties in the different sea ice types, such as brine inclusions, air, and solid salts, govern the portion of incoming radiation that is reflected,absorbed, and scattered. Another important aspect of sea ice thickness pertains to the sea ice brine flux and its effect on thermohaline circulation (THC) affecting deepwater formation and upper ocean stability through saltwater and freshwater fluxes.
