Chapter 3 Vocabulary

Front 1

Parallels

Back 1

circles that run east and west around the world parallel to the equator.

Front 2

Latitude

Back 2

the angular distance north or south of the equator.

Front 3

Meridians

Back 3

a semicircle running from pole to pole, used to establish east- west locations.

Front 4

Prime Meridean

Back 4

this meridean is 0 degrees and runs through Greenwhich, England.

Front 5

Longitude

Back 5

the angular distance ease or west of the prome meridean.

Front 6

Geomagentic Poles

Back 6

the point on earth;s surface just above the poles of the imaginary magnet.

Front 7

Magentic Declination

Back 7

the angle between the direction of the geograohic pole and the direction in which the compass needle points.

Front 8

True North

Back 8

15 degress west of the direction of the geographic north pole.

Front 9

Map Projection

Back 9

a flat map that represents the three-dimensional curved surface of a globe.

Front 10

Cartography

Back 10

the science of map making.

Front 11

Parallels

Back 11

circles that run east and west around the world parallel to the equator.

Front 12

Latitude

Back 12

the angular distance north or south of the equator.

Front 13

Meridians

Back 13

a semicircle running from pole to pole, used to establish east- west locations.

Front 14

Prime Meridean

Back 14

this meridean is 0 degrees and runs through Greenwhich, England.

Front 15

Longitude

Back 15

the angular distance ease or west of the prome meridean.

Front 16

Geomagentic Poles

Back 16

the point on earth;s surface just above the poles of the imaginary magnet.

Front 17

Magentic Declination

Back 17

the angle between the direction of the geograohic pole and the direction in which the compass needle points.

Front 18

True North

Back 18

15 degress west of the direction of the geographic north pole.

Front 19

Map Projection

Back 19

a flat map that represents the three-dimensional curved surface of a globe.

Front 20

Cartography

Back 20

the science of map making.

Front 21

Parallels

Back 21

circles that run east and west around the world parallel to the equator.

Front 22

Latitude

Back 22

the angular distance north or south of the equator.

Front 23

Meridians

Back 23

a semicircle running from pole to pole, used to establish east- west locations.

Front 24

Prime Meridean

Back 24

this meridean is 0 degrees and runs through Greenwhich, England.

Front 25

Longitude

Back 25

the angular distance ease or west of the prome meridean.

Front 26

Geomagentic Poles

Back 26

the point on earth;s surface just above the poles of the imaginary magnet.

Front 27

Magentic Declination

Back 27

the angle between the direction of the geograohic pole and the direction in which the compass needle points.

Front 28

True North

Back 28

15 degress west of the direction of the geographic north pole.

Front 29

Map Projection

Back 29

a flat map that represents the three-dimensional curved surface of a globe.

Front 30

Cartography

Back 30

the science of map making.

Front 31

Great Circle

Back 31

often used in navigation especially by long distance aircraft.

Front 32

Mercator Projection

Back 32

map projection in which the merideans appear as straight, parallel, evenly spaced lines and form a grid.

Front 33

Gnomonic Projection

Back 33

map projection in which the parallels appear as unevenly spaced, concentric circles, the merideans appear as straight lines radiating from a central point, and all the other great cirlces appear as straight lines.

Front 34

Conic Projection

Back 34

map projection in which the merideans converge at the poles.

Front 35

Polyconic Projection

Back 35

map made by fitting together a series of conic projections of adjoiing areas.

Front 36

Legend

Back 36

a list of symbols and their meanings

Front 37

Scale

Back 37

relationship between distance shown on a map and actual distance.

Front 38

Topographic Map

Back 38

a type of map that is especially useful in earth science

Front 39

Topography

Back 39

surface features of the earth.

Front 40

Elevation

Back 40

height above sea level.

Front 41

Mean Sea Level

Back 41

the point midway between the highest and the lowest tide levels of the pcean.

Front 42

Contour Lines

Back 42

lines used to show elevation

Front 43

Contour Interval

Back 43

the difference in elevation between one contour line and the next.

Front 44

Relief

Back 44

the differnce in elevation between the highest and lowest points of the area being mapped.

Front 45

Index Contours

Back 45

lines that are on maps and they are printed bolder than any other line.

Front 46

Depression Contours

Back 46

lines drawn along the inside of the loop and point toward its center, indicating the direction of depression.