Homework Three: Map Projections and Coordinate Systems

Figure 1

For this assignment I made two maps: a world map and a map of the United States. To Make the world map I imported world and country data to ArcMap.

To change the projections of the map I went data fame properties and selected the World Goode Homolosine Land projection as seen in on the bottom of figure 1.

The next map consisted of the United States with major cities. To find the capitals I right-clicked the cities layer, clicked properties >query builder tab>query builder.

I inserted the following command “CAPITAL”=’Y’ to display only state capitals as seen in figure 2.

Figure 2

To display cities by population size I right-clicked “cities” properties>symbology>quantities>proportional symbols (figure 3). Now capital city symbols

were proportional to their populations.

Figure 3

To measure the distance from Olympia, Washington to Augusta, Maine I used the magnification tool to zoom into the both regions. I then used the measuring tool,

selected meters and measured the distance between the two cities (figure 4). The measured distance was 7,753 KM.

I then changed the projection to an USA Albers Equal Area projection by right clicking the Unites States, and selecting data frame properties. Under this projection the

measurement between these cities was 4,100 KM. To determine the highest capital city I right clicked cities, opened the attribute table and sorted the cities in a

descending order under the elevation category to reveal Santa Fe is 6,989 ft. and the highest capital city. To find the most populous capital city I sorted the

population category by descending to find Phoenix (pop. 983,406) is the most populated U.S. capital city.

Figure 4