A contour line<span> or isoline </span>connects points<span> on a map that are of </span>equal<span> value. Examples of contour </span>lines<span> or isolines are isobars (pressure) and isotherms (</span>temperature<span>). Perhaps the prototypical example of a contour </span>line<span> is that which </span>connects points of equal<span> elevation (that is, height above sea level).</span>
In the medical field the basic ideas of geospatial technology can be applied. Similar to a GPS, doctors have tools to provide pinpoint measurements of information via remote sensing applications such as X-Rays and other body scans. The GIS then can be applied to take the data along with other forms of information to apply a layering of all the information to produce statistical reports. These reports are then analyzed to form a diagnosis and then determine a predictive measurement for a positive effect.
A fault is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement as a result of rock-mass movement.