MAPPING OUR WORLD. CARTOGRAPHY THE SCIENCE OF MAPMAKING.

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Presentation transcript:

MAPPING OUR WORLD

CARTOGRAPHY THE SCIENCE OF MAPMAKING

DEFINITIONS Equator: imaginary line at 0degrees latitude dividing planet between North and South Poles Latitude: Lines parallel to equator Prime meridian: imaginary line at 0 degrees longitude dividing East from West Longitude: lines “parallel” to prime meridian

LATITUDE Indicates location north / south Equator = 0 degrees Each pole = 90 degrees Each degree equal to 111 km (about 70 miles) Degrees subdivided into smaller unit called minutes

LONGITUDE Indicates direction east/west Prime meridian runs through Greenwich England Areas numbered degrees International date line is at 180 degrees Longitude lines are not parallel

TIME ZONES 24 zones Necessary since earth is spinning Each zone is approximately 15 degrees – however, local variation exists International date line: When traveling east move back a day, if moving west move forward one day. Located in the Pacific.

TYPES OF MAPS MERCATOR: Latitude AND longitude are parallel. Shapes of landmasses are correct. Size of landmasses wrong (exp. Greenland being larger than Australia)

TYPES OF MAPS CONIC * Very little distortion at a particular latitude * Best for mapping local, smaller areas

TYPES OF MAPS TOPOGRAPHIC Show elevation by using contour lines