Digital Lesson 7.4 Flashcards
Relief
Difference between the highest and lowest elevations in a given area
Scale
Relationships between the measurements on a model, map, or diagram and the actual measurement or distance
Index contour
On w map, a darker, heavier contour line that is usually every 5th line
Topography
Size and shape of the lands surface features of a region, including its relief
Slope
Measure of the slant of a line; the ratio rise over run
Contour line
Line that connects equal points of elevation on a map
Contour interval
Difference in elevation between one contour line and the next
Why are maps useful
Large areas of earths surface can be displayed on a small flat surface
Topographic map
Map that shows the surface features of earth
What does a topographic map show
The shape of earths surface with lines representing different elevations
Why are aerial and satellite images used in mapping
They provide a viewpoint that we can’t get in earth. Satellites have sensors that detect light we can’t see
Low relief
Little change in elevation; plains
High relief
Elevation changed a lot like in a mountain range
Contour interval for a mountain
Large interval
What type of contour intervals will areas of high and low relief have
High reliefs: large contour interval
Low reliefs: small contour interval
How do contour lines change as you get towards a mountain peek
The concentric loop gets smaller
Depression contour
Closed loop with short lines that point towards the center of thee depression
The center of the depression is what point
Lowest point
Where do the v shapes on contour lines point
Upstream
The more pointed the v shapes what happens
More pointed: steeper
What do closed loops represent
Tops of hills
What does a topographic map show
The shape of earths surface with lines representing different elevations
Why are aerial and satellite images used in mapping
They provide a viewpoint that we can’t get in earth. Satellites have sensors that detect light we can’t see
Low relief
Little change in elevation; plains
