Chart projections, Mercator intro (29-05-18) Flashcards Preview

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Flashcards in Chart projections, Mercator intro (29-05-18) Deck (5)
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1

At what point is a chart 100% accurate?

At the point of tangency

2

What is meant by a chart being orthomorphic/conformal?

Graticules intersect at 90 deg

Scale is correct or mathematically adjusted

3

What kind of plotting can be done on a Mercator chart?

Rhumb line plotting

4

How does the scale of a Mercator chart expand from the equator?

Rate of secant(lat)

5

When comparing scales of charts what makes a scale smaller?

Being a bigger ratio

easier to compare when converted to a fraction