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Where we are going…. 1. Shape of the earth… oblate spheroid 2. Site and situation 3. Latitude and longitude, GPS 4. Maps. Empty Pac. Site and situation. Site = physical attributes of a place Situation = relative location of a place relative to other places and human activities.
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Where we are going… • 1. Shape of the earth… oblate spheroid • 2. Site and situation • 3. Latitude and longitude, GPS • 4. Maps
Site and situation • Site = physical attributes of a place • Situation = relative location of a place relative to other places and human activities
Maps are…. • All maps are reductions, simplifications and abstractions of the real world.
Maps • Virtual and real
Cartography is…. • The art, science, and technology of making maps.
Maps (usually) have certain elements • Title • Legend • Scale • Border • Scale • Insets
Projections • Mercator – conformal • Azimuthal equidistant - (directions and distance from center point) • Peters – equal area
Types of Maps • This is different from projections!! • These are styles of maps. • 5 main types… - Choropleth - dot - graduated circle - cartograms - topographic - isoline
776.5 756.5 753.5 732 713.5 708 706 705 698.5 693.5 693.4 690 689 689 686.5 681.5 680 680 679 677 Categorizing data
776.5 756.5 753.5 732 713.5 708 706 705 698.5 693.5 693.4 690 689 689 686.5 681.5 680 680 679 677 Categorizing data
776.5 756.5 753.5 732 713.5 708 706 705 698.5 693.5 693.4 690 689 689 686.5 681.5 680 680 679 677 Categorizing dataquartile - 4 classes
776.5 756.5 753.5 732 713.5 708 706 705 698.5 693.5 693.4 690 689 689 686.5 681.5 680 680 679 677 Categorizing data equal interval – 25 each class
776.5 756.5 753.5 732 713.5 708 706 705 698.5 693.5 693.4 690 689 689 686.5 681.5 680 680 679 677 Categorizing dataequal interval – 25 each class
776.5 756.5 753.5 732 713.5 708 706 705 698.5 693.5 693.4 690 689 689 686.5 681.5 680 680 679 677 Categorizing datanatural breaks
Topographic maps • Contours (and types) p. 122 fig 8.4 • Contour interval
Topographic maps • Contours (and types) p. 122 fig 8.4 • Contour interval • Layer tints
Topographic maps • Contours (and types) p. 122 fig 8.4 • Contour interval • Layer tints • Figuring out slopes and shapes (p. 131 and 132)
Topographic maps • Contours (and types) p. 122 fig 8.4 • Contour interval • Layer tints • Figuring out slopes and shapes (p. 131 and 132) • Linear interpolation
Topographic maps • Contours (and types) p. 122 fig 8.4 • Contour interval • Layer tints • Figuring out slopes and shapes (p. 131 and 132) • Linear interpolation • Slope measurements