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30 Cards in this Set

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cartograhpy
the science and profession of mapmaking
in 540 B.C.ancient Greeks...
theorized that the Earth was a shpere
circumference of the Earth
24,900 miles
highest point on Earth...
Mt Everst (Himalayas) 29,035ft above sea level
lowest point on Earth
Mariana Trench (Guam) "Chalanger Deep" 36,200ft below sea level
These create grid patterns andreference points
circles; great and small
which circle pass through the poles?
Great circles
lines of latitude run ____________ to the equator
parallel
lines of longitute pass through the ______________
prime meridian (pass through Greenwich, England)
Earth turns______longitude in an hour
15 degrees
each time zone spans___________
15 degrees longitude
why 15 degrees?
360 degrees divided by 24 hr day
how mant time zones are there?
24
US Public land Survey also called_____________
township and range system
township and range system
legal discrition of land
township=
36 square miles
GPS
developed by the military, method of surveying the Earths surface
Most important map limitation?
portaying a curved surface onto a flat surface
mercador map
compensates for distortion
azmuth
an angular direction of a line,point, or route measured clock wise from N 0-360' (#'s only)
bearing
an angular direction of a line, point or route measured from N or from a current location to a desired location (often in 90' compass quadrants)
thematic map
map designed to present information or data about a specific theme
isoline
a line on a map that represents equal values of some numerical measurements such as lines of equal temperature or elevation contours
isotherm
temperature
isobar
pressure
isobath
water depth
isohytes
precipitation
contour lines
show elevation and terain
contour interval
lines = value
remote sensing
mechanical collection of information about the environment from a distance, usually from aircraft or spacecraft, e.g.; photography,radar,infrared