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Why do the lines bend upward on a contour map when indicating a stream?
The lines bend upward to show that the stream is running the opposite way. (For example, if the lines are pointing north, the stream is running south) **Contour lines bend toward the source when they go over a river/stream.
How can you find the direction a stream flows on a topographic map?
A contour map shows lines which connect areas equal in height. These lines are called contours and should be labelled to show the height that each contour represents. A stream flows downhill, this is due to gravity. Thus, to determine which way a stream flows, find contours, at least two, that intersect the path of the stream, then look at the heights these contours represents(their labels). The stream will flow from the contour labelled with the higher number towards the contour labelled with the lower number. PS. sometimes not all the contours are numbered, but only say every fith contour is numbered, then you can assume that all contours are equally incremented i.e. the height difference from one contour to the next stays equal.
When might two contour lines cross?
Contour lines don't really "cross" if we consider them strictly. But they can "merge" at a point where there is an abrupt change in elevation, as a cliff. Let's look at things a bit more closely. If we map a hill with one side cut straight down by something like a quarry or the action of a river, we'd see contour lines on a map coming together to "merge" along the face of the cliff. There are "multiple elevations" represented by the face of the cliff, and two or more lines might become one line along what is the cliff face on our map.
To contour lines depicting a valley or draw are you or v-shaped what does the closed end of the contour line point to?
The point of the V is probably where there is a stream, river or wash.
The contour lines depicting a valley or draw are you or V-shaped What does the closed end of the contour line point to?
The point of the V is probably where there is a stream, river or wash.
How must contour lines bend to indicate a stream valley?
contour lines bend in a V shape pointing uphill because it flows the other direction
How do you know if your going uphill or downhill by looking at a contour map?
contour lines all ways point up hill or up stream
What do V-shaped contour lines indicate when the point downhill?
uphill
V-shaped contour lines pointing uphill indicate a?
A Valley
What do V-shaped contour lines indicate when the point uphill?
A valley
What do you expect when you see ten evenly spaced contour lines?
Evenly spaced contour lines mean a steady slope, uphill or downhill.
What are the contour line rules?
- Contour lines never cross. All lines on a contour line represent one elevation.- The spacing of contour lines depends on slope characteristics. Contour lines that are close together show a steep slope. Contour lines that are far apart show a gentle slope.- Contour lines that cross a valley or a stream are V shaped. The C points toward the area of the highest elevation. If a stream or river flows through the valley, the V points upstream.-The tops of the hills, mountains, and depressions are shown by closed circles. Depressions are marked with short, straight lines inside the circle that point down slope to the depression.
How much do contour lines show stream direction?
Water flows downhill. Contour lines show the slope of the landscape, and the direction a stream must flow.
How do contour lines show stream direction?
indicated with different kind of contour numbers , which are showed in brown curved lines
What does a v-shaped contour lines indicate when they point uphill?
It means a small difference in elevation
Why is is unlikely that two contour lines will cross?
Because contour lines make places of equal height.
Do contour lines crossings a small stream point up-stream or downstream?
Upstream
