In this lab, our goal was to produce an isarithmic map, with contour lines, depicting the annual rainfall coverage over the past 30 years of the state of Washington. Our learning objectives for the exercise were to be able to: understand the PRISM Interpolation Method, work with continuous raster data and implement continuous tone symbology, make map appropriate legends, utilize the Int Spatial Analyst Tool to convert raster values to integers, employ hillshade relief for both maps, manually classify data correctly, and to create contour lines using the Contour List Tool.
My Map
This map depicts the annual precipitation over a 30 year period in the state of Washington. The data was prepared and derived using the PRISM Interpolation Method. This method utilizes elevation data alongside precipitation data, creating stepped color zones, with contour lines, that better depict relief.
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