contour

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contour

or

contour line,

line on a topographic map connecting points of equal elevation above or below mean sea level. It is thus a kind of isopleth, or line of equal quantity. Contour lines are drawn on maps with a uniform interval of vertical distance separating them (usually 10, 20, 50, or 100 ft on American maps) and thus outline the landform configuration, or relief. They may be visualized as representing shorelines if sea level were raised in small increments. Thus the tops of hills, which would appear as separate islands, are shown as a series of closed circular contours; valleys, which would appear as elongate bays, are shown as contour lines converging toward a point at the head of the valley. Since on steep slopes there is little horizontal distance between points greatly different in height, contour lines indicating such terrain are close together; contour lines of gentle slopes are more widely separated. Maps employing contour lines are called contour, or relief, maps although they are popularly called topographic maps (see topographytopography
, description or representation of the features and configuration of land surfaces. Topographic maps use symbols and coloring, with particular attention given to the shape and elevations of terrain.
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) in the United States. Certain conventions are employed on these maps to assist the user. Contours indicating land elevations are printed in brown with every fifth contour drawn thicker and labeled with its elevation; those indicating depths of bodies of water are printed in blue. Hachure lines, pointing downslope, are attached to contour lines in order to emphasize a depression with a steep gradient. In the past, contour maps were made from ground surveys. Today they are constructed from stereographic aerial photographs and orbiting satellites, which use radar to measure elevations for land or ocean relief maps. In an analogous way, contour lines are also commonly used to map properties other than elevation; meteorologists, for example, employ contour lines, or isobars, to delineate areas of equal barometric pressures.

CONTOUR

(kon -toor) A NASA mission to be launched in July 2002 to study at least three comets: Encke (2003), Schwassmann–Wachmann-3 (2006), and d'Arrest (2008). The mission is designed so that it could be retargeted to intercept other unforseen comets.

contour

[′kän‚tu̇r]
(mapping)
(physics)
A curve drawn up on a two-dimensional diagram through points which satisfy f (x,y) = c, where c is a constant and f is some function, such as the field strength for a transmitter.
(science and technology)
The periphery of a figure or body.

contour

contour
i. Lines on a map joining places of equal height above a selected datum level. They are drawn at a suitable interval, and the greater the bunching, the steeper the slope. The highest point is shown as a spot height.
ii. A line on a radarscope that shows the areas of equal radar echo intensity.
References in periodicals archive ?
? Star Kim Khardashian is an expert at using make-up for contouring
Salons such as Angela's can help females of all ages get contouring done ahead of a big event.
According to the company, Nuvellus utilises its proprietary Rotational Fractional Resection (RFR) technology, which may provide medical aesthetic physicians a minimally-invasive single treatment option to improve submental (neck and jowl) contouring.
To us, hair colour is simply makeup for the hair and with the power of contouring with hair colour, we can create definition, give the illusion of a different face shape and accentuate features you'd like to focus on, for example long narrow faces highlighting hair at the side can make it appear a little wider, while darker pieces on top and underneath can soften the length of the face.
The experts at Eternity Medicine Institute evaluated the quality of life in many patients who underwent body contouring after weight loss surgery.
Body contouring has rapidly gained popularity in the United States and elsewhere, but surgical contouring procedures can be painful and can require prolonged recovery times, she noted.
CONTOUR KIT BEFORE you choose your contouring essentials, look at how you might normally apply your make-up.
SEVEN SUPER-SCULPTORS THESE ready-made contouring kits should help make the face honing process a cinch.
Manual contouring often used for contouring GTV suffers from being very time consuming and subject to intra- and interobserver variability [6].
Body contouring surgeries are devised to improve aesthetics, quality of life, physical, and mental health of patients.
Xie, "Active contouring based on gradient vector interaction and constrained level set diffusion," IEEE Transactions on Image Processing, vol.