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23 cze 2024 · A qualitative map, also known as a thematic map, is a visual representation of spatial data that shows the spatial extent of categorical, or nominal, data. This means that it represents the presence or absence of a particular subject or attribute on a map.
Qualitative thematic maps show the spatial extent of categorical, or nominal, data (e.g., soil type, land cover, political districts). Quantitative thematic maps, conversely, demonstrate the spatial patterns of numerical data (e.g., income, age, population).
Qualitative map data is in the form of a quality and expresses the presence or absence of the subject on a map, like the kind of vegetation present occupying a region. Quantitative map data is expressed as a numerical value, like elevation in meters, or temperature is degrees celsius.
Qualitative mapping is a method of representing geographical information that focuses on the non-numerical aspects of data, using symbols, colors, and patterns to convey meaning. This type of mapping emphasizes the characteristics and qualities of a specific area or phenomenon rather than quantifiable metrics.
For my purposes, a thematic map is simply a map of something somewhere, such as the AIDS epidemic in Africa—something in some place. Hence, thematic maps add a Z dimension to an existing, or even fictional, X-Y (latitude-longitude) landscape.
Qualitative data are descriptive in nature. There are 3 basic types of qualitative data. Often qualitative data are expressed in words such as the names of regions within a geographic area, a description of landslide risk, or a type of volcano. The Congressional Districts appear to be numbers but in reality are names.
4 maj 2024 · Against this background, we systematically review three foundational methods from different academic disciplines—causal diagrams, concept mapping, and cognitive mapping. Comparing and contrasting them, we facilitate a coherent understanding of qualitative systems mapping (QSM) as an umbrella term.
