Chapter 3 For Earthsci

Front 1

cartography

Back 1

the science of map making

Front 2

conic projection

Back 2

map projection in which the meridians converge at the poles;
the parallels appear as equally spaced, concentric curves (47)

Front 3

contour interval

Back 3

difference in elevation between one contour line and the
next (51)

Front 4

contour line

Back 4

line on a map connecting points with the same elevation (50)

Front 5

depression contour

Back 5

contour line with short, straight lines drawn along the
inside of the loop pointing toward its center that indicates a depression (55)

Front 6

elevation

Back 6

height above sea level (50)

Front 7

geomagnetic pole

Back 7

point on the Earth’s surface above a pole of the Earth’s
imaginary internal magnet (45)

Front 8

gnomonic projection

Back 8

map projection in which the parallels appear as unevenly
spaced, concentric circles, the meridians appear as straight lines radiating from a
central point, and all other great circles appear as straight lines (47)

Front 9

great circle

Back 9

any circle that divides the globe in half (44)

Front 10

index contour

Back 10

every fifth contour line on a topographic map that is printed
bolder for reference (53)

Front 11

latitude

Back 11

angular distance north or south of the equator (43)

Front 12

legend

Back 12

list of map symbols and their meanings (48)

Front 13

longitude

Back 13

angular distance east or west of the prime meridian (44)

Front 14

magnetic declination

Back 14

angle between the direction of the Earth’s geographic
pole and the direction in which a compass needle points (45)

Front 15

map projection

Back 15

flat map that represents a three-dimensional curved
surface (46)

Front 16

mean sea level

Back 16

point midway between the highest and lowest tide levels of the
ocean (50)

Front 17

Mercator projection

Back 17

map projection in which the meridians appear as straight,
parallel, evenly spaced lines and form a grid with the parallels, which appear as
straight, parallel, and unevenly spaced lines (47)

Front 18

meridian

Back 18

semicircle on the Earth that runs from pole to pole (43)

Front 19

parallel

Back 19

any circle that runs east and west around the Earth parallel to the
equator (43)

Front 20

polyconic projection

Back 20

map made by fitting together a series of conic projections
of adjoining areas (48)

Front 21

prime meridian

Back 21

the meridian that passes through Greenwich, England,
designated as 0° (44)

Front 22

relief

Back 22

difference in elevation between the highest and lowest points of an
area (51)

Front 23

scale

Back 23

relationship between distance shown on a map and actual distance (49)

Front 24

topographic map

Back 24

map that shows the surface features of the Earth (50)

Front 25

topography

Back 25

surface features of the Earth (50)

Front 26

true north

Back 26

direction of the geographic North Pole (45)