Understanding Physical and Chemical Parameters of Ocean Water Using CTD Profiles
Overview
A focus of the PolarTREC Southern Ocean Diatoms expedition was to collect water samples and physical profile data using oceanographic technology. Oceanographers rely on the real-time data transferred from the water column to the ship-based computers using a CTD sensor. The CTD measures conductivity (salinity), temperature and depth
Lake El'gygytgyn (67.5º N, 172º E) is one of the best preserved large asteroid impact craters on earth. In the winter of 2009, I joined an international science team and traveled to the frozen arctic lake to drill and extract lake sediments to study climate change as well as sample the rocks that were changed when the crater
The Aleutian Islands, between Alaska and Siberia, have earned the name "Cradle of the Storms" due to their wild weather. Students will view a two-part series about the Aleutian islands and answer questions related to the film.
Objective
Students will learn about the Aleutian Island chain in Alaska and answer questions to reinforce learning.
Students will sort organisms found in the Bering Sea into food chains and gain an awareness of the flow of energy and nutrients in the Bering Sea Ecosystem.
Objective
Students learn about the different organisms that live in Alaskan waters by playing the Fabulous Food Chain Game. In playing the game, they become aware of the flow of energy
Diatoms are one of the main kinds of phytoplankton we found blooming in the Bering Sea. They are so beautiful, little glass houses with green gems inside. They occur in huge numbers in the Bering Sea in the initial spring ice melting algae bloom. Having one to touch and look at puts a face on what it is
Maggie Prevanas joined scientists in the Bering Sea where sampling to measure the productivity of the Bering Sea Ecosystem was conducted. Maggie learned about the role microscopic organisms, diatoms, play in algae blooms, carbon cycling, and global warming. Maggie developed a lesson using scientific illustration to introduce diatoms to her students.