Topography Flashcards
topographic map
A map that shows elevation surface Also shows features (topography) of the earth. Natural features like rivers, lakes, mountains. Man made features like cities, roads, bridges.
topography
Elevation, layout, and shape of the land
contour line
the difference in elevation from one contour line to the next
index contour
On a topographic map, a heavier contour line that is labeled with elevation of that contour line in round units.
hachure
short line that points toward the center of a depression on a topographic map
steep slope
When the contour lines on a topographical map are close together
gentle slope
shown by widely spaced contour lines
stream valley
shown when contour lines form a “v” or “u” shape - the closed end points upstream (opposite way the water flows)
elevation
height above sea level
sea level
0 feet in elevation
concentric circles
indicates a hill or mountain
satellite image
picture of Earth’s surface taken from a satellite in orbit
canyon
a deep, narrow valley with steep sides
Delta
triangular area of marshland formed by deposits of silt at the mouth of some rivers
contour interval
the difference in elevation from one contour line to the next
