Registered Penn State students should return now take the self-assessment quiz about Choropleth Mapping, Census Data, and Proportional Symbol Mapping. For example, you can create geography types called State, City, and Postal Code. Figure 3.16: Map of the Gas Pipline Network From Canada to the United States. In 2011, for example, some $486 billion of Medicaid funds were distributed according to a formula that compared state and national per capita income. By definition, census blocks are bounded on all sides by streets, streams, or political boundaries. A primary distinction here is between maps that depict categorical (qualitative) data and those that depict numerical (quantitative) data. Overall, NDVI is a standardized way to measure healthy vegetation. In the U.S., one of the most important sources is the U.S. Bureau of the Census (discussed briefly above). How does this year compare to the past? meteorology, water quality, agricultural crops, fisheries, The CrimeViz map application (CrimeViz) developed in the GeoVISTA Center at Penn State visualizes violent crimes reported from the District of Columbia Data Catalog (DC Data Catalog). Geography is a richly diverse and comprehensive subject that A rate is a quantity that tells us how frequently something occurs, a value compared to a standard value (e.g., Bradford County, PA had a rate of 45.1/100,000 deaths due to colorectal cancer among women over the period of 1994-2002). Political Map. Its broader mission includes being "the preeminent collector and provider of timely, relevant, and quality data about the people and economy of the United States". Sensors were considered 'nearby' if they fell within a 1 km-wide hexagon (which is about how far a vehicle would travel based on the speeds and times used for the EPA calculations). As you can see, the effect of the two different classification schemes on the appearance of the two choropleth maps above is dramatic. and analyse large quantities of information quickly and effectively. Values that Underpin our Teaching & Learning. For more election cartogram examples, visit University of Michigan 2008 election site. Categorical maps can also represent characteristics of extended areas or territories. A cartogram can be considered a special case of proportional symbol mapping. Cartograms are unusual enough that they attract viewer attention, making them a popular mapping method with the media, particularly during election years. The geography spatial data type, geography, is implemented as a .NET common language runtime (CLR) data type in SQL Server. the sampling methods – random, systematic, stratified, line, point and area sampling, pilot survey, and location of survey). ... types and quantities of resources. A wide array of map types has been developed over the years to represent numerical data. Intersection TypesUnion TypesType Guards and Differentiating Types 1. The purpose of this practice activity is to guide you through the process of finding and acquiring 2000 census data from the U.S. Census Bureau data via the Web. Comenius Language Assistant - British Council - Czech Republic, Flood Risk Mapping and Data Management - Environment Agency, Recruitment Consultant - Search Consultancy. The term choropleth is derived from the Greek; khōra 'region' + plēthos 'multitude' (thus, be careful not to mix up “choro”, which has no ‘l’, with the “chloro” of chlorophyll or chlorine). Figure 3.18: Hispanic population density in the U.S. by state, using a single hue sequential color scheme that depicts the range of data values from low to high with light to dark color values. American Community Survey estimates, like the SF3 data that preceded them, are reported at the block group level or higher. Figure 3.19: Misleading population maps due to color choice. The appearance of a thematic map, and sometimes conclusions drawn from it, may vary substantially depending on the data classification scheme used. Below, you will find several thematic maps produced by graduate students or faculty in the Department of Geography at Penn State to provide an idea of the variety that exists. As introduced above, unlike reference maps, thematic maps are usually made with a single purpose in mind. Typical values are 0, 1, 5, and 10. These issues affect us all at work and in our 7.1 MOUNTAINS Mountain, plateau and plain are broad by present day land features of the Typically, the quantities are grouped into “classes” (representing a range in data value) and a different fill is used to depict each class (see section 3.2.6 for more on data classification). For a more detailed description and examples, see MultiPoint. Geography Imagine two people who live in very different places. The result of this formula generates a value between -1 and +1. The most common method to depict this kind of data is to fill the area with a color or a texture. In the rest of this chapter, we will explore different types of thematic maps and consider which type of map is conventionally used for different types of data and different use goals. Examples include density, average, rate, and percent. The U.S. Census Bureau is the government agency charged with carrying out the decennial census. Meaning: Generally, value has been taken to mean moral ideas, general conceptions or orientations towards the world or sometimes simply interests, attitudes, preferences, needs, sentiments and dispositions. The Pennsylvania State University © 2020. The thematic map below (Figure 3.22) shows states that lost and gained seats as a result of the reapportionment that followed the 2000 census. and societies; people and places; and global development and citizenship. An average is a measure of central tendency, specifically the mean value calculated as a total amount divided by the number of entities producing the amount (e.g., the average income for a county calculated by totaling the income of all people in the country and dividing by the number of people). The graph below (Figure 3.31) shows the percent of people who prefer the term “pop” (not soda or coke) for each state.