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ESS Mapping Ch3

STUDY
PLAY
model
a way of representing the properties of an object or system
coordinate system
the system for determining the coordinates of a point
latitude
the angular distance north or south of the equator
equator
the parallel on Earth midway between the geographic north and south poles with a latitude of zero
longitude
the angular distance east or west of the prime meridian
meridian
any semi circle on earth surface connecting the north and south geographic poles
prime meridian
the meridian of zero longitude
field
any region of space or the environment that has some measurable value of a given quantity at every point
isolines
the varying values of a field represented on maps to connect points of equal field values
contour lines
isolines that connect points of equal elevation
gradient
the rate of change from place to place within the fields (slope)
gradient formula
change in amount of field value/ change in horizontal distance
topographic map (contour map)
a commonly used model of the elevation fields of the surface of earth
elevation
the vertical distance of height above or below sea level
profile
the side view of an areas landscape