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Map Use
chapter 1
13
Geography
Undergraduate 1
03/03/2011

Additional Geography Flashcards

 


 

Cards

Term
Semiminor Axis
Definition
The slightly shorter polar radius of the elipsoid
Term
Semimajor Axis
Definition
The slightly longer equatorial radius of the elipsoid
Term
Geodetic latitude
Definition
Latitude on an ellipsoid.
Term
Geocentric Latitude
Definition
Latitude on a sphere
Term
authalic shere
Definition
A sphere with the same surface area as specified reference elipsoid
Term
rectifying sphere
Definition
An oblate ellipsoid used to define the circumfrance of a spherical earth where hte length of meridians from equater to pole on the ellipsoid equals one quarter of the sperical circumfrance
Term
statute miles
Definition
1760 yards 5280 feet used for land distance in u.s.
Term
nauticle miles
Definition
1852 meters exactly about 1.15 statute miles, 1 minute of latitude measured along meridian
Term
great circle
Definition
The largest circle that can be drawn on the surface of the earth
Term
antipodal meridian
Definition
the meridian on the opposite side of the earth from the one being considered
Term
quadrilaterals
Definition
Area bounded by equal increments of latitude and longitude
Term
Geodetic Reference System of 1980 GRS 80
Definition
ellipsoid identical to wgs 84 ellipsoid
Term
metonic cycle
Definition
19 year cycle of the lunar phases
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