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Topography Notes
| Question | Answer |
|---|---|
| Topography | The shape and size of the land features on earth |
| Topographic map | Shows the shape of Earth's surface with lines that represent the different elevations, These maps are also known as a contour map. They also identify natural structures and man made ones. |
| Contour Lines | Are lines that connect points that are of the same elevation. If the contour lines are close together, then that indicates that area has a steep slope. If the contour lines are far apart, then that indicates the land has a gentle slope. (Low slope) |
| Contour Interval | The difference in elevation between two contour lines that are side by side. |
| Map Scale | Compares distance on the map with Distance on earth |
| Legend | Explains symbols used on the map. |
| Index Contours | contour lines that are labeled to help you find the contour interval, these lines are in BOLD |
| Benchmark | is a point where exact elevation is known and is marked with a brass or aluminum plate. It is marked BM on the map with the elevation numbers given in feet. Benchmarks are useful to help determine contour lines. |
| Hachur lines | Are regular contour lines with small segments sticking out from it. The first hachure line is the same elevation as the contour line before it. |
| Elevation | The vertical distance for object above or below the referenced surface. |
| V's In the stream | Contour lines form V's that point upstream when they cross a stream. |
| Relief | Refers to the variations in the height or slope of the earth's surface. |
| Profile | A summarized, graphical or textual representations of significant characteristics or points of data. |