This one hour webinar is a great look at the PolarTREC 2014 Arctic expeditions. Each teacher presents a little about the research projects, implementation in the classroom, and outreach into communities.
This one hour webinar is hosted by PolarTREC teacher Regina Brinker who studied interactions of sunlight and microbes at Toolik Field Station in northern Alaska.
Density currents drive 3D movements within the world’s oceans that dwarf surface currents by volume. Density-driven movements due to temperature/salinity differences keep the world’s oceans well mixed & help to re-distribute heat from tropical areas towards polar areas. Resultant upwelling creates some of the world’s richest ocean ecosystems. Density movements known as turbidity currents are the world’s largest