This lesson incorporates techniques and experimental designs used by researchers during the Southern Ocean Diatoms PolarTREC expedition and during post-expedition laboratory analysis. This guided inquiry lesson provides students the opportunity to explore photosynthesis and primary productivity using techniques to measure chlorophyll levels.
Objectives
SWBAT:
1. Use models to predict chlorophyll levels in the global oceans
2. Identify
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
View sequential still images of thermokarst (thawed permafrost) at Horn Lake in northern Alaska during the summer of 2010. The video was made by researchers studying the responses of Arctic landscapes to permafrost degradation.
The attached Lands and Life flyer, produced by the International Polar Year (IPY) Programme Office, includes a summary of terrestrial polar ecosystems, from southern cold maritime islands to dry continental deserts in Antarctica and from tree line across the continental tundra to remote northern islands in the Arctic. An attached activity allows students to build a small scale model of
Students will observe how soils and rocks of different densities behave in wind and in water. They will make predictions and careful observations as they learn about sediment transport and sediment rates in streams and rivers.
Tunnel Man is a super hero who lives in Ice Tunnels, and teaches children and adults about the unique geomorphology of Alaska. Tunnel Man is played by Kenji Yoshikawa, a Research Associate Professor for the Institute of Northern Engineering at the University of Alaska Fairbanks (UAF). Tunnel Man's fun and educational videos were produced as part of UAF's participation in
Tunnel Man is a super hero who lives in Ice Tunnels, and teaches children and adults about the unique geomorphology of Alaska. Tunnel Man is played by Kenji Yoshikawa, a Research Associate Professor for the Institute of Northern Engineering at the University of Alaska Fairbanks (UAF). Tunnel Man's fun and educational videos were produced as part of UAF's participation in
Tunnel Man is a super hero who lives in Ice Tunnels, and teaches children and adults about the unique geomorphology of Alaska. Tunnel Man is played by Kenji Yoshikawa, a Research Associate Professor for the Institute of Northern Engineering at the University of Alaska Fairbanks (UAF). Tunnel Man's fun and educational videos were produced as part of UAF's participation in
Tunnel Man is a super hero who lives in Ice Tunnels, and teaches children and adults about the unique geomorphology of Alaska. Tunnel Man is played by Kenji Yoshikawa, a Research Associate Professor for the Institute of Northern Engineering at the University of Alaska Fairbanks (UAF). Tunnel Man's fun and educational videos were produced as part of UAF's participation in
Permafrost is a key cryospheric component and of global interest for better understanding climate change. This short film presents an overview of permafrost on Earth and focuses on the International Polar Year (IPY) activities of a research group from the University of Lisbon and its international partners. Video narration in Portuguese with English subtitles.