GEOGRAPHIC GRID

GEOGRAPHIC MAPSThe map is a 2-dimensional graphic representation on a flat plane; approximate, reduced, and symbolic of an area more or less extensive on the Earth's surface.111GEOGRAPHIC MAPS ApproximateA map projection is any method of representing the surface of a sphere or other shape on a plane. Map projections are necessary for creating maps. All map projections distort the surface in some fashion

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The scale of a map is defined as the ratio of a distance on the map to the corresponding distance on the ground.

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A map scale can be printed in a variety of ways:

1) A ratio or representative fraction (RF)Examples:1: 10,0001:100,000,000 444GEOGRAPHIC MAPS Reduced

A map scale can be printed in a variety of ways:2) A word statement gives a written description of map distance, such as "One centimetre equals one kilometre" or "One centimetre equals ten kilometres.

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A map scale can be printed in a variety of ways:3) A graphic scale is simply a line marked with distance on the ground which the map user can use along with a ruler to determine scale on the map.

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A map scale can be printed in a variety of ways:

WHAT IS THE BEST?AND WHY?777GEOGRAPHIC MAPS Reduced

WHAT IS THE BEST?AND WHY?The first two methods of indicating map distance would be ineffective if the map is reproduced by a method such as photocopying and the size of the map is modified. If this occurs, and one attempts to measure an inch on the modified map, it's not the same as an inch on the original map.888GEOGRAPHIC MAPS Symbolic

In cartography, symbols are everything. The very nature of a map as an abstract representation of the Earth requires symbols to perform the abstraction. Not to have symbols is not to have maps."999GEOGRAPHIC MAPS Symbolic

legendA key to what the symbols or pictures in a map mean.

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Draw your personal legend:

Shops, school, library, disco, pub, tennis club,

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