Ocean Checkup—How Do You Measure the Health of the Ocean Argo floats, monitoring ocean health, dissolved oxygen, chlorophyll aStudents will compare dissolved oxygen and chlorophyll a data collected at 3 different locations by Argo floats. Students will discuss the relationship between Chlorophyll A (phytoplankton) and oxygen in the sea, and discuss how the information would be useful in determining ocean health. Topics Floats AuthorsMargaret Portelance Teacher ResourcesTeacher Slides Additional Resources Data is from Dr. Hannah Joy-Warren’s work here: https://ecotaxa.obs-vlfr.fr/prj/168 Staff Spotlight: Hannah Joy-Warren Argo Fleet Monitoring Next Generation Science StandardsCrosscutting ConceptsPatternsSystems and system modelsCore IdeasLS2.B: Cycles of Matter and Energy Transfer in EcosystemsLS2.C: Ecosystem Dynamics, Functioning, and ResilienceETS1.B: Developing Possible SolutionsPracticesDeveloping and using modelsAnalyzing and interpreting data Ocean Literacy Fundamental Concepts3.E: The ocean dominates the Earth’s carbon cycle. Half the primary productivity on Earth takes place in the sunlit layers of the ocean and the ocean absorbs roughly half of all carbon dioxide added to the atmosphere.