GIS 5007 - Module 6 - Isarithmic Mapping

For this week's mapping exercise, the objective was to create isarithmic maps illustrating annual precipitation patterns across Washington state using two different visualization techniques. While one method, continuous tone, excels at depicting the full spectrum of precipitation values, I opted for hypsometric tinting. This technique involves establishing specific value breaks to create easily interpretable categories. To further enhance the map's visual appeal and clarity, I incorporated a subtle hillshade effect, providing a sense of terrain. The underlying precipitation data originates from the PRISM analytical tool, which intelligently simulates climatological reasoning, notably the strong influence of elevation on climatic variables. Consequently, hypsometric tinting proves to be a particularly effective method for presenting this type of geographically and topographically influenced data.


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