Map Projections and Coordinate Systems (Cartographic Fundamentals)

Question 1

Map Projection

Answer 1

a system in which locations on the curved surface of the Earth are displayed (projected) on a flat sheet or surface according to some set of rules.

Question 2

Geoids, ellipsoids, spheres, and globes

Answer 2

NOT developable surfaces because you cannot flatten them

Question 3

Tangent case

Answer 3

One standard line or point of contact

Question 4

Secant case

Answer 4

Two standard parallel lines or points of contact

Question 5

Projection: Plane

Answer 5

Azimuthal projections(Equatorial, Polar, Oblique)

Question 6

Projection: Cylinder

Answer 6

Cylindrical(rectangular) projections (Scale distortion increase as you move away from the standard lines)

Question 7

Projection: Cone

Answer 7

Conic Projections (doesnt show entire world)

Question 8

Developable surface

Answer 8

Can be flattened

Question 9

Tearing

Answer 9

All projections suffer from tearing, which occurs when a map shows an edge on the surface of the Earth

Question 10

Shearing

Answer 10

Shearing occurs when a projection bends or warps features on the Earths surface without changeing their area

Question 11

Compression and Exaggeration

Answer 11

Occur when a projection changes the area of objects on the surface of earth

Question 12

Equivalent(Equal area)

Answer 12

preserves area

Question 13

Conformal (orthomorpic)

Answer 13

Preserves angles(shapes)

Question 14

Equidistant

Answer 14

Preserves great circles distance

Question 15

Standard Lines

Answer 15

SF= 1 >no distortion
SF>1 =exaggeration
SF<1 =compression