M6: Isarithmic Mapping

 

For this week's lab, we were to create an isarithmic map depicting the annual rainfall and elevation of the state of Washington using data that had been interpolated using the PRISM method. PRISM uses a digital elevation model to calculate the climate-elevation regression for the various DEM cells in the area being studied. Key concepts and tools that were to be used to complete this task included continuous tones, hypsometric tints, and hypsometric tints with contour lines.


The data used in this map was collected during the 30-year period between 1981 and 2010. In this map, hypsometric tints and contour lines have been used to depict the various elevation levels and their correlation to the average annual rainfall over the state of Washington.

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