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geo words
| Term | Definition |
|---|---|
| Antipodes | Antipodes are a pair of points that are on opposite sides of a planet (like the North Pole and the South Pole). |
| Azimuth | An azimuth is the angle that a line makes with a meridian (a line of longitude), going clockwise from north. |
| conic projection | A conic projection is a type of map in which a cone is wrapped around a sphere (the globe), and the details of the globe are projected onto the conic surface. Then, the cone is unwrapped into a flat surface. |
| geographical coordinate system | A geographical coordinate system is a system that uses latitude and longitude to describe points on the spherical surface of the globe. |
| Mercator projection | A Mercator projection is a type of rectangular map (a cylindrical projection) in which the true compass directions are kept intact (lines of latitude and longitude intersect at right angles), but areas are distorted. |
| Mollweide projection | A Mollweide projection is a type of sinusoidal projection map in which the entire surface of the Earth is shown within an ellipse. Lines of latitude are parallel to the equator, lines of longitude are curved in such a way that area distortion is minimal. |
| planar projection | A planar projection is a type of map in which the details of the globe are projected onto a plane (a flat surface) yielding a rectangular-shaped map. Cylindrical maps have a lot of distortion towards the edges. |
| planimetric map | A planimetric map is a map that represents only the horizontal positions of features (and not the vertical positions, like heights, which a topographic map shows). |
| quadrangle | A quadrangle is a four-sided area bounded by two lines (parallels) of latitude and two lines of longitude (meridians) on a map. |
| sinusoidal projection | A sinusoidal projection is a type of map projection in which lines of latitude are parallel to the equator, and lines of longitude are curved around the prime meridian. |