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
This student lesson focuses on plate tectonics and large-scale system interactions, utilizing PolarTREC teacher Brian DuBay's Transantarctic Mountains expedition videos.
Objectives: The student will investigate, make observations, and analyze geologic processes of plate tectonics.
Key concepts include:
a) how geologic processes are evidenced in Antarctic mountains;
b) tectonic processes (compressional, tensional, and transversal forces).
Adapted by Michelle Brand Buhanan for
For this experiment, we are going to melt dirty ice (ice with lots of sediment/dirt in it) and clean ice (ice without sediment) from the Taylor Glacier. After we melt the ice, we are going to test the melt water for pH and conductivity, and then determine how much salt is actually in our ice samples. There are