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Engineering Advanced Argo Floats

Stephen Riser

Professor
University of Washington

Dr. Riser's primary interests include the ocean's role in climate; circulation of the ocean and ocean/atmosphere/ice interactions through direct observations; and the interactions between physical aspects of circulation and the biogeochemical properties of the ocean.

Webinar Clip
In order to better compare Aquarius satellite data (measuring global ocean salinity) to autonomous float data, the scientists involved with the Argo program engineered an "Advanced Argo Float". This update adds an "STS unit" (near-surface sensor) to a traditional Argo float and allows the float to collect centimeter-scale salinity data, something not traditionally collected by Argo.

Full webinar: From Skin to Deep

Click here for a transcript of this clip (PDF, 41.9 KB).

Resources
Applicable Science Standards
  • Asking Questions and Defining Problems Asking Questions and Defining Problems. A practice of science is to ask and refine questions that lead to descriptions and explanations of how the natural and designed world(s) works and which can be empirically tested.
  • Analyzing and Interpreting Data Analyzing and Interpreting Data. Scientific investigations produce data that must be analyzed in order to derive meaning. Because data patterns and trends are not always obvious, scientists use a range of tools - including tabulation, graphical interpretation, visualization, and statistical analysis - to identify the significant features and patterns in the data. Scientists identify sources of error in the investigations and calculate the degree of certainty in the results. Modern technology makes the collection of large data sets much easier, providing secondary sources for analysis.
  • Engaging in Argument From Evidence Engaging in Argument From Evidence. Argumentation is the process by which evidence-based conclusions and solutions are reached. In science and engineering, reasoning and argument based on evidence are essential to identifying the best explanation for a natural phenomenon or the best solution to a design problem.