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Water Quality of San Francisco Bay
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Examples of Data Displays

The U.S. Geological Survey maintains a measurement program designed to describe the patterns of water quality variability in San Francisco Bay. The individual water-quality constituents (e.g. salinity or dissolved oxygen) are measured: in the vertical dimension (from the water surface to the bottom at each station), along the longitudinal dimension (from South Bay to the Sacramento River), and over time. This means that we can display different kinds of patterns of variability from the USGS data set. We show here examples of four different visual displays:

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