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
PolarTREC teacher Andrea Skloss’ lesson was inspired by her Chukchi Sea Ecosystem Study aboard the USCGC Healy. In order to understand why this area is a biological hot spot of productivity, scientists must study components such as the trophic levels and more.
Objectives
In organisms and environments, the student knows that interdependence occurs among living systems and the environment