GEOM 6 (Feb 3rd)

Representative Fraction (RF)

A scale expressed as a ratio, showing the relationship between distances on a map and real distances on the ground.

Large-Scale Maps

Measurements of this are consider ‘large’ scale because they provide detailed information about the features within a limited area, these maps also then to have a large representative fraction

Small-Scale Maps

When representing a larger area we have a ‘smaller’ magnification which results in less detail but a broader overview of the landscape.

Sequential vs Divergent

Sequential schemes represent ordered data from low to high; Diverging schemes emphasize mid-range and extremes.

Data Classification Methods

Techniques used in cartography to divide data into distinct classes such as natural breaks, standard deviation, quantiles, and equal intervals.

Cartographic Features VS Measurement Levels

Both used to display data in a map,

Cartographic is used to show particular points or specific details.

Measurement level is used to display areas or general features across a larger area.

Choropleth Mapping

A mapping technique that uses color gradients or shading to represent variable differences across defined areas.

Graduated Symbols

A mapping technique where variable-sized symbols denote different data values, indicating magnitude.

Nominal Representation

A categorization method where data features are labeled without numerical values.

Ordinal Representation

A data representation method that ranks values but does not convey magnitude.

Interval Representation

A method that provides measurable numerical values indicating quantities, such as population counts.