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34 Cards in this Set

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a model or representation of the earths surface
map
greek mathematician who calculated the earths circumfrancein 240 bc
erathenes
a fixed place on the earths surface from which directions and location can be described
refrence point
an imaginary line throught the earth about which the planet rotates
axis
north end of the axis
north pole
south end of the axis
south pole
north south east west and varios combos os these directions
cardinal directions
uses the natural magnetism of the earth to indicate direction
compass
geographic north pole
true north
is measures in degrees east or west of true north
magnetic declination
imaginary lines drawn around the earth parellel to the equator
latitude
an imaginary line thay passesd through the poles
equator
divides the earth into the eastern and western hemisphere
prime meridian
opposite of the prime meridian
international dateline
what are the three types of projections?
mercator, cylidrical and planer
results from when the contents of the globe sre transferd onto a cylinder of paper
cylindrical projections
made by transfering the contents of a globe onto a cone
conic projection
made by transferring the contents of a globe onto a plane
planer projection
pictures taken from planes
planer projection
the gathering of info w/o actually being there
remote sensing
tells what area ia being shown or gives info about the map subject
title
shows the relationship between the distance on the earths surface an the distance on the map
map scale
a maps ruler
graphic scale
is a phrase that describes a measure of distance reltive to the distance ont he esrths surface
verbal scale
a fraction or ratio that shows the relationship between the distance on the map and the distance on the earths surface
represtitive fraction
shows how the map is position in relation to true north
compass rose
is a list of symbols used on the map and there explainations
legend
gives the time at which the info was accurate
date
the height of an object at sea level
elevation
the difference in elevation between contour lines
contour interval
a dark heavier contour line that elevation is labelled
index contour
the diff. in elevation between the highest and lowest point being mapped
relief
short straight lines within contour lines
hachures
what are the the 4 things u need to no to read a topographic map
1)contour lines never cross 2)closly spaced contour lines indicate steep slope 3)contour lines crossing valleys or streams are "V" shaped 4)contour lines form closed loops around hills etc. check for hachures