Which one of the following is the most suitable projection for an ideal map of 'Chile'?

Question

Accepted Answer

Bonne's projection is the most suitable projection for an ideal map of Chile because of the following reasons:

*   **Shape and Area Preservation:** Bonne's projection is an equal-area pseudoconical projection. Chile is a long, narrow country extending significantly in the north-south direction. Equal-area projections are crucial for representing areas accurately, which is important for statistical mapping and comparisons of regions within Chile. While shape distortion increases away from the central meridian, the equal-area property is paramount for a country like Chile where accurate area representation is vital.

*   **Suitability for North-South Extent:** Bonne's projection is well-suited for mapping regions with a significant north-south extent along a single meridian. Chile's shape aligns perfectly with this characteristic. The projection minimizes distortion along the central meridian, which can be aligned with Chile's longitudinal axis, thus preserving the shape and area along the country's length.

Now, let's explain why the other options are less suitable:

*   **Conical projection with one-standard parallel:** While conical projections are generally good for mid-latitude regions, a single standard parallel might not be optimal for a country as long as Chile. Distortion increases significantly as you move away from the standard parallel, and with Chile's length, this distortion would be considerable. It doesn't offer the equal-area property of Bonne's.

*   **Conical projection with two-standard parallel:** Using two standard parallels reduces distortion compared to one, but it still doesn't guarantee equal area. While it's an improvement over a single standard parallel, it's not as suitable as Bonne's projection for a long, narrow country where area accuracy is a priority.

*   **Lambert's projection:** Lambert's projection is a conformal conic projection, meaning it preserves shape locally but distorts area. For Chile, where accurate area representation is important, a conformal projection like Lambert's is less suitable than an equal-area projection like Bonne's. The shape preservation benefit of Lambert's is less critical than area preservation for a general-purpose map of Chile.