Module 8- Isarithmic Mapping

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This week we focused on Isarithmic mapping. We were tasked to create three maps showing isarithmic symbolization methods of precipitation data for the state of Washington. The data set used came from the PRISM Group in Oregon State University and was compiled using what is called the PRISM (Parameter-elevation Relationships on Independent Slopes Model) interpolation method.

Using the spatial climate data set of 1981-2010 average annual precipitation for the state of Washington in ArcMap, I visualized three different isarithmic symbolization methods: Continuous tones, Hypsometric tints, and Hypsometric tints with contour lines(final map).

It was interesting going through significant elements of data, both in the required reading and lab, necessary to arrive to a type of map anyone who has looked at a weather map has seen. Most interesting though was learning how measurements for weather phenomena are recorded.

Below is the result from this exercise, which was visually finalized in Adobe Illustrator.



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