They show elevation
On a map, contour lines are the best method of showing relief ( the ups and downs of a land surface)
(:
The difference in elevation between two contour lines that are side by side is the contour interval. The contour interval is the vertical distance between two adjacent contour lines on a topographic map.
isolines
Contour lines connect points with the same what?
Contour lines on a map indicate elevation. They connect points of equal elevation, showing the shape and steepness of the terrain. Closer contour lines indicate steep slopes, while spaced-out lines represent flatter areas.
Contour interval.
The scale of contour lines on a topographic (terrain) map is called the "contour interval".
The darker contour lines on map are called index contour lines. Numbers that indicate elevations are often written on these lines.
Hachured contour lines are contour lines with ticks pointing downslope that indicate a depression on a topographic map.
Index contour lines are thicker and usually have their elevation labeled. They help users quickly identify key elevations on a topographic map. In contrast, regular contour lines show the shape and elevation of the land but do not have specific labels.
The difference in elevation between two contour lines that are side by side is the contour interval. The contour interval is the vertical distance between two adjacent contour lines on a topographic map.
The definition of a contour interval is the difference in elevation between two consecutive lines.
The main topographic map rules include contour lines never crossing, contour lines close together represent steep terrain, contour lines spread out represent flat terrain, and elevation is indicated by the contour lines.
The closer the contour lines, the steeper is the slope.
The land is steep if the contour lines are close together
On a topographic map, contour lines that are closer together indicate a steeper slope.
The name for the elevation difference between adjacent contour lines is the contour interval.
contour lines