What is topographic surface?
Surface topography is the local deviations of a surface from a perfectly flat plane. The topography of a surface is known to substantially affect the bulk properties of a material. Surface topography also known as surface texture, surface finish or surface profile.
How do you mark a topographic map?
The distinctive character- istic of a topographic map is that the shape of the Earth’s surface is shown by contour lines. Contours are imag- inary lines that join points of equal elevation on the surface of the land above or below a reference surface, such as mean sea level.
What does 3r mean in topography?
Answer: 3r means the relative depth or height of the peninsular well or sand dune respectively is 3 m.
What does a cliff look like on a topographic map?
Cliffs – Very steep slopes, sometimes vertical or even overhanging. Represented on the map by very dense contour lines; when the cliffs are over hanging, the contour lines might overlap.
What does depression look like on a topographic map?
A depression is represented by a series of concentric closed contours with the inner contours having lower elevation than their outer surrounding. There are small tick marks or hachures on these contour lines pointing towards lower elevation.
What does a gentle slope look like on a topographic map?
2. Closely spaced contour lines represent steep slopes, conversely, contour lines that are spaced far apart represent gentle slopes. 3. Contour lines trend up valleys and form a “V” or a “U” where they cross a stream.
What is Isobath What are the factors on which contour lines are based?
Answer: The definition of an isobath is a contour line on a map that shows all points with a particular depth of water. An example of isobath is the line on a map that someone would use to view places in the Indian Ocean with the same water depth. Thanks 0.
What is difference between a contour interval and horizontal equivalent?
Contour interval (CI) is the difference of value of two consecutive contours (larger contour value – next smaller contour value). Horizontal equivalent is the horizontal distance between any two consecutive contours. Generally CI remains constant for any contour map, but horizontal equivalent varies with varying slope.