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Topography
Topographical terms
Hint | Answer |
---|---|
topographic map | a map that shows the surface features of the earth, both natural (rivers/hills) and man-made (buildings/roads) |
topography | surface features of the earth |
elevation | height above sea level measured at mean sea level |
mean sea level | point midway between the highest and lowest tide levels of the ocean. The elevation at ___________ is zero. Other elevations are measured above and below this. |
contour lines | lines on a topographic map that show elevation. one __________ connects all points on the map that have the same elevation. |
contour interval | the space between two contour lines. This space shows the difference in elevation between one line and the next. |
relief | the difference in elevation between the highest and lowest points of the area being mapped. |
USGS | United States Geographical Survey - Branch of the U.S. federal government responsible for making topographical maps for the entire United States |
legend | a list of symbols describing items found on a map |
direction | latitude and longitude is used to find this on a topological map. |
index contours | the dark lines on a topographical map; usually every fifth contour line |
depression contours | contour lines that form closed loops with straight lines drawn along the inside of the loop pointing toward the center. These loops indicate a sunken area such as a crater or low place. |
steep slopes are indicated by... | contour lines that are very close together |
contour lines that are far apart | relatively level land is indicated by these... |
V-shaped | a valley is indicated by contour lines that are this... |
Rivers | these always flow from areas of higher elevation to areas of lower elevation. |
On a USGS topographical map, 1-inch equals.... | 2,000 ft. |