Contour interval
the elevation difference between two adjacent contour lines.
Those lines representing elevation on a map are called contour lines. The difference in elevation between two of these lines is called the contour interval. Different maps use different contour intervals based on the scale of the map, or in other words, the size of the contour interval is based on how zoomed in and detailed the map is. Sometimes a map will have darker and thicker contour intervals. This is called the Index Contour Interval. Index contour intervals appear less frequently and represent a larger elevation change. It helps you figure out the amount of a large elevation difference faster because usually they are multiples of 100 or 1000, making them easier to add up.
Most likely you says about contour interval. It's the difference in height between two sequential contour lines. For example, if the contour interval is 50 meters and some contour line corresponds 2000m above sea level, the next contour uphill was at 2050m then 2100m etc. Different maps use different intervals. It depends on map scale and terrain type (for mountain areas intervals are higher than for plains). The contour interval is shown on the map collar (typically near the scale).
Divides are the boundaries that separate streams in adjacent drainage basin.
Divides are the boundaries that separate streams in adjacent drainage basin.
Contour interval
contour lines
Contour interval.
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 elevation difference between two adjacent contour lines.
the elevation difference between two adjacent contour lines.
The elevation difference between two adjacent lines.
Color
A contour line is an imaginary line connecting point of equal elevation. Going from one line to an adjacent line is a change in slope.
The elevation change between two adjacent contour lines on a topographic map is known as the contour interval. This interval represents the difference in elevation between each contour line. For example, if the contour interval is 50 feet, it means that each contour line represents a change in elevation of 50 feet.
Elevation
Hydrologic floodplain, the land adjacent to the baseflow channel residing below bankfull elevation. It is inundated about two years out of three. Not every stream corridor has a hydrologic floodplain.Topographic floodplain, the land adjacent to the channel including the hydrologic floodplain and other lands up to an elevation based on the elevation reached by a flood peak of a given frequency; for example, the 1-percent (100 year) floodplain.Another way to look at it, in an incising channel, that is to say that the river is cutting into valley, will create two floodplain benches, the lower and narrow one the hydrologic floodplain and the higher and much wider one the topographical floodplain.