Isolines

maps

two dimensional representation of Earth's surface

graph

a drawing illustrating the relations between certain quantities plotted with reference to a set of axes

heat

a form of energy that is transferred by a difference in temperature

heat sink

takes heat from heat source

air pressure

The measure of the force with which air molecules push on a surface

field

any area where data are mapped

contour interval

difference in value between two neighboring isolines

heat source

gives off heat to heat sink

elevation

height of the land above sea level

bench mark

highest point on a hill/mountain

contour lines

lines connecting areas of equal elevations [topographic maps]

isoline

lines connecting areas of equal value

isobar

lines of equal air pressure

isotherm

lines of equal temperature