The purpose of this lab was to use online data tables as map data and then to publish a map on ArcGIS Online. The website "Factfinder" provided 2010 census data, including a table of population by Wisconsin counties. This data was downloaded and extracted to my "lab2" folder. After converting the table from a comma-delimited file to an Excel Workbook file, it was added to a new map in ArcMap. In addition, a shapefile of associated Wisconsin counties was downloaded from the above website and added to the map. Upon verifying that both files imported properly and shared a common ID (geoID#), they were joined so that the shapefile could be symbolized using data from the table.
The first variable to be mapped, total population, did not need to be normalized. A monochromatic color scheme was chosen for the shapefile for easy viewing. Jenks natural breaks with 6 classes rather than 5 were used to show more variability in population. A second variable, percent of the population 5 years and under, was chosen and imported in the same manner as above. A different monochromatic color was chosen and Jenks natural breaks with 5 classes were used. This variable is a percentage of total population, and did not have to be normalized.
A layout was made of these two maps, shown below. Set in landscape orientation to accommodate both maps, map elements including
legends, a title, source, north arrow, scale, and a topographic basemap were also included. As shown below, The southeastern part of the state is more populated, and children under 5 are not as common in the northernmost counties.
To create a map on ArcGIS Online, a login is required. Before is could be published as a service through UW-Eau Claire - Geography and Anthropology, the basemap and all layers besides the total population shapefile had to be deleted. A description and tags were entered and sharing was updated to include UW-Eau Claire - Geography and Anthropology. After publication was successful, changes were made via Google Chrome to configure a popup information window that would display the population of each county when that county was clicked on. Below captures the web map with pop-up information of Barron County.
Source: US Census Bureau
