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HGAP Mod. 2
| Term | Definition |
|---|---|
| Census | An official count or survey of a population, typically recording various details about individuals, such as age, sex, and race |
| Fieldwork | Learning and doing research involving firsthand experience, which takes place outside the classroom setting |
| Absolute location | A precise position on Earth’s surface |
| Latitude | The (invisible) horizontal lines circling Earth parallel to the equator; latitude is the degree of distance north or south from the equator, which is at 0 degrees, as far as the poles, which are at 90 degrees |
| Equator | The invisible line that runs through the center of the world horizontally, dividing the Earth into Northern and Southern hemispheres |
| Longitude | The (invisible) vertical lines on Earth’s surface that mark imaginary circles connecting the North Pole with the South Pole |
| Prime meridian | The zero-degree longitude line that runs through Greenwich, England; also known as the Greenwich Meridian |
| Global Positioning System (GPS) | A system of 24 satellites that orbit Earth twice daily and transmit radio signals Earthward; the basis for many map-based apps that provide directions on how to get from one place to another |
| Geographic Information System (GIS) | A software application for capturing, storing, checking, and displaying data related to positions on Earth’s surface; allows the rapid manipulation of geospatial data for problem-solving and research |
| Remote sensing | The scanning of Earth by satellite or high-flying aircraft in order to obtain information about it |
| Aerial photography | Remote-sensing photography that produces fine-grained, high-resolution, highly detailed images |
| Satellite imagery | Images of Earth’s surface from sensors mounted on orbiting satellites that record both visible and non-visible portions of the electromagnetic spectrum, allowing humans to view patterns and processes that are both visible and invisible to the naked eye |