Nature creates its own density column in marine systems, which is extremely important for the triggering of the spring bloom of phytoplankton. Phytoplankton are an important food source for all organisms- from microscopic zooplankton to large marine mammals such as walrus and whales. The different salinities (and therefore, different densities) of water help to stabilize the water column (by limiting
Gary Wesche, a PolarTREC teacher and board president of the Blue River Watershed Association, operated a community cleanup along with more than 30 of his students at St. John Francis Regis School. The head of the EPA was also on hand for the event.
This underwater movie shows the ROV or Remotely Operated Vehicle, SCINI (Submersible Capable of Under Ice Navigation and Imaging) working under the ice in Antarctica.
The website, Ice Stories, features short interviews and other interesting content live from the polar regions. This weblink has a short video interview of PolarTREC teacher, Craig Beals, while taking part in a PolarTREC expedition with Barry Lefer at Summit, Greenland.
PolarTREC Teacher, Craig Beals, talks about his experiences at Summit, Greenland in this online version of an article published by the Billings Gazette on July 21, 2008.
The NOAA Teacher at Sea Program sends teachers out to sea on Coast Guard ships. They have published several children's books about the teachers' adventures. The books include basic information about the ships, oceanography, climate, and the environment. Each book has a glossary and is illustrated with beautiful pictures. You can download a pdf copy to use right now and