What does a convex slope look like on a map?
What does a convex slope look like on a map?
Convex: Contour lines showing a convex slope on a map will be widely spaced at the top and closely spaced at the bottom. Bushwalkers going down the slope cannot observe most of the slope or the terrain at the bottom, so extra care must be taken when route finding.
What kind of contour lines represent a convex slope on a topographic map?
Contour lines that are widely spaced at the top of the slope and closely spaced at the bottom of the slope depict a convex slope. Contour lines that are closely spaced at the top of the slope and widely spaced at the bottom depict a concave slope. 5.
What are the three types of contours?
Contour lines are of three different kinds. They are the Index lines, Intermediate lines and the Supplementary lines.
How do contour lines show different types of slopes?
This slope can be determined from the map by studying the contour lines—the closer the contour lines, the steeper the slope; the farther apart the contour lines, the gentler the slope. Four types of slopes that concern bushwalkers are gentle, steep, concave, and convex.
Which side slope is the most gentle?
If you are using a topographic map, the most gentle slope will be where the lines are furthest apart.
What does a concave slope look like?
A terrain feature that is rounded inward like the inside of a bowl, i.e. goes from more steep to less steep. Slope Shape: Avalanches happen on any steep slope without thick anchors despite the shape of the slope. …
What is the difference between convex and concave slope?
Concave Slope: The slope is very gentle at the foot and it goes on getting steeper and steeper towards the top. The spacing between successive contours at the lower level is more than at the higher level. Convex Slope: The slope is very steep at the foot and it goes on becoming gentle towards the top.
What are the types of slopes?
From the previous section, you have discovered that there are four types of slope.
- postive slope (when lines go uphill from left to right)
- negative slope (when lines go downhill from left to right)
- zero slope (when lines are horizontal)
- undefined slope (when lines are vertical)
What is the difference between a steep slope and a gentle slope?
In gentle slopes, the change of elevation is gradual. Normally about 1:25 gradient of elevation is gradual. Steep slope suddenly slopes up or down. The contours are placed wide apart in gentle slope.
How is the convex slope represented on a map?
The convex slope is represented by the contour lines that have opposite features to the concave slope. In other words, the lower contours are closely spaced, and become more distant in the upper level. 3. Map Reading and Usage in
Where are the contour lines on a slope?
Contour lines showing a concave slope on a map will be closely spaced at the top of the terrain feature and widely spaced at the bottom ( Figure 10-8 ). Considering relief only, the defender at the top of the slope can observe the entire slope and the terrain at the bottom, but he cannot use grazing fire.
When do contour lines of a hill become convex?
concave When the contour lines of a hill are far apart at first, then come close together. The hill will be easy to climb at first, but then it gets steep. convex When the contour lines of a hill are close together at first, then get farther apart. The hill will be hard to climb at first, but then it becomes easy. valley
How to draw contours to show relief features?
Draw contours to show the following relief features :1. Convex slope 2. Gentle slope 3. Conical hill4. Plateau 5. V-shaped valle6. Waterfall. from Geography Topographical Maps Class 11 Jharkhand Board 1. Convex slope