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California State University, Long Beach
CSULB Geospatial Research and Mapping (GRAM) Field Program
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colorful progression

Posted on June 27, 2012 by Alessandra Pistoia

Every time that I collected a water sample, I also took a GPS waypoint with a Garmin.  I projected these points onto an annual rainfall raster layer overlain by a watershed polygon layer, as well as a layer with all of streams on the island of Kauai.  A rough draft of this map follows…

I plan on adding the GPS points from when I collected samples from our fishing boat excursion.  Also, I will visually display the water chemistry of each sample by using a Piper Diagram.  I color coded a Piper Diagram that I will use as the key in my final map product.

Once I run my water samples through the ion chromatographer, I will be able to visually display the results by plotting the chemicals in each sample on this diagram.  Each sample will have a point on the two triangles and the parallelogram.  The dot will fall within three unique colors.  These colors will represent the corresponding point on the map.


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