The Weather Forecast Looks Pleasant (GIS 3015/3015L- Cartographic Skills)

Diving into this next week, we covered isarithmic mapping and interpolation, which is finding the unknown values between known values of irregularly spaced control points. The lab covered three different isarithmic symbolization mapping approaches. Beginning with continuous tones, we created a simple map of Washington state with annual precipitation data. The map was akin to that of an unclassified cloropleth map. It resembles this because the enumeration units were shaded proportional to the data value in that unit.

The map shown here makes use of hypsometric tint, which are shaded areas between contour lines. This enhances the ability to visualize a 3-D surface with the use of light and dark tints which then can be associated with low and high values. The PRISM interpolation method is also used here. PRISM works by using point data and an underlying DEM (digital elevation model) or a 30 year climate average, in this case from 1981 to 2010. This creates a grid for estimations of monthly and annual precipitation along with temperature.

With the flu still lingering around, I'm definitely ready to relax this spring break. I'm hoping to return mind and body refreshed.