Question

Answer the following questions in not more than 125 words:
Which map projection is very useful for navigational purposes?
Explain the properties and limitations of this projection.

Answer 1

The map projection which is very useful for navigational purposes is the Mercator projection.

The properties of Mercator projection are as follows:

• Mercator projection is orthomorphic because it is based on a mathematic formula.

• This projection is also an azimuthal projection.

• The shape of the area is maintained but it gets distorted at high altitudes.

• Meridians and Parallels are straight lines. These lines intersect at right angles.

• The distance between parallels increases towards the pole whereas the distance between the meridians remains equal.

• The length of all parallels are same which is equal to the length of the equator.

The limitations of Mercator projection are as follows:

• In Mercator projection, poles cannot be shown.

• At high altitudes, there is a great exaggeration of scales along the parallels and meridians.

Answer 2

The best source used for map projection is Mercators:

Explanation:

• Meridians and parallels are straight lines.
• The space between meridians remain constant while the space between parallels keep on increasing
• However, all the parallels have the same length
• The meridians are much longer on the globe than they in reality
• The projections are orthomorphic and can be seen on the globe easily

See a similar question here:

What is a map projection? What problem is caused by map projections?

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