Geographic Data and Information Quiz

Spatial Data and Geographical Data

• Spatial data refers to information that is associated with a particular location or geographic area.
• Metadata in the context of geographical data is information that describes the characteristics of the data, such as its source, format, and accuracy.

Types of Geographical Data

• Linear data is represented as a line on a map, such as roads, rivers, and boundaries.
• Point data is represented by coordinates, which are used to locate a specific point on a map, such as a building or landmark.

Data Collection Methods

• Relief maps are the oldest and most common method of raising the features of the Earth's surface, creating a three-dimensional representation of the terrain.
• Aerial photography is the process of photographing the Earth's surface through a regular camera installed in an aircraft flying at a known altitude.

GPS and Satellite Images

• The Global Positioning System (GPS) is primarily used for navigation, tracking, and mapping.
• There are two famous types of Satellite images: Landsat and Spot.

Census Data

• Census data is collected from internationally approved official censuses and from governmental and non-governmental departments and agencies.

Map Types

• Choropleth maps represent data as colored areas, such as population density or election results.
• Symbol maps give each position a geometric symbol, such as a circle or square, to represent data.
• Isopleth maps are used to display continuous data, such as temperature or elevation, and serve the purpose of showing the distribution and pattern of the data.