What is a line joining points of equal elevation?
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. The contour interval of a contour map is the difference in elevation between successive contour lines.
What are lines on a map joining?
Isolines are the lines drawn to connect different places which share a common feature. Isobars are the lines on a map joining the places with the same atmospheric pressure.
What connects equal points of elevation on a topographic map?
Contour lines connect a series of points of equal elevation and are used to illustrate relief on a map. They show the height of ground above mean sea level (MSL) either in metres or feet, and can be drawn at any desired interval.
What are elevation lines called?
A contour line is a line drawn on a topographic map to indicate ground elevation or depression.
Is a contour connecting points of equal value?
A contour is a line connecting points of equal surface value. Contour lines reveal the rate of change in values across an area for spatially continuous phenomena. Where the lines are closer together, the change in values is more rapid. Elevation and barometric pressure are commonly mapped using contours.
What is the term used for an imaginary line on the ground joining points of equal?
An imaginary line joining the points of equal elevation on the surface of the Earth represents the contour line. A line laying on the ground which maintains a constant inclination to the horizontal is known as contour gradient.
Is a line joining the places with equal?
Option d: A line on a map joining places of equal values is called an isoline.
What are map lines called?
Horizontal and Vertical lines on a map are called a grid. Grid is a network of meridians of longitude and parallels of latitude. A system of coordinates that allows locating oneself relative to the Equator, North or South, is called Latitude lines.
What is an index line?
Index lines are the thickest contour lines and are usually labeled with a number at one point along the line. This tells you the elevation above sea level. 2. Intermediate lines are the thinner, more common, lines between the index lines.
What’s an index contour line?
The index contours are a darker or wider line in comparison to the regular contour lines. Elevations are marked on the index contour lines only. To determine the gradient of elevations, observe the amount of space in between the lines. If the contours are placed close together, then you're looking at a steep slope.
What is called contour?
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.
What are the lines on a map called?
Latitudes and longitudes are measured in degrees. Complete answer: Horizontal and Vertical lines on a map are called a grid. Grid is a network of meridians of longitude and parallels of latitude.
What are lines of equal pressure?
Isobars: lines of constant pressure. A line drawn on a weather map connecting points of equal pressure is called an "isobar". Isobars are generated from mean sea-level pressure reports and are given in millibars.
What is the another name of contour lines?
Some common synonyms of contour are outline, profile, and silhouette. While all these words mean "the line that bounds and gives form to something," contour stresses the quality of an outline or a bounding surface as being smooth, jagged, curving, or sharply angled.
Which of the following lines in which surface of ground is intersected by a level surface?
Contour 2. Which of the following lines, in which surface of the ground is intersected by a level surface? Explanation: A Contour is an imaginary line on the ground joining the points of equal elevation. It is a line in which the surface of the ground is interested in a level surface.
What is the name of the line joining the places of equal pressure?
A line drawn on a weather map connecting points of equal pressure is called an "isobar". Isobars are generated from mean sea-level pressure reports and are given in millibars.
What is the name for a line connecting points of equal population density?
Isopleth. A line representing points of equal numerical value, such as population.
What are the lines on a topographic map called?
The topography is represented by contour lines, which are imaginary lines. Every point on a particular contour line is at the same elevation. These lines are generally relative to mean sea level.
What are vertical lines on a map called?
Vertical mapping lines on Earth are lines of longitude, known as "meridians". One simple way to visualize this might be to think about having hula hoops cut in half, vertically positioned with one end at the North Pole and the other at the South Pole.
What do you mean by contour line?
contour line, a line on a map representing an imaginary line on the land surface, all points of which are at the same elevation above a datum plane, usually mean sea level.
What is a Hachured line?
Definition of hachure (Entry 1 of 2) : a short line used for shading and denoting surfaces in relief (as in map drawing) and drawn in the direction of slope.
What is a contour line on a topographic map?
Contours are imag- inary lines that join points of equal elevation on the surface of the land above or below a reference surface, such as mean sea level. Contours make it possible to measure the height of mountains, depths of the ocean bottom, and steep- ness of slopes. A topographic map shows more than contours.
What is a latitude on a map?
Latitude is the measurement of distance north or south of the Equator. It is measured with 180 imaginary lines that form circles around the Earth east-west, parallel to the Equator. These lines are known as parallels.
What is a meridian on a map?
meridian, imaginary north–south line on the Earth's surface that connects both geographic poles; it is used to indicate longitude. The 40th meridian, for example, has a longitude of 40° E or 40° W. See latitude and longitude.
What is a line connecting points of equal temperature?
Isotherm: lines of equal temperature in air or sea.
What is the name of the imaginary line of constant elevation on the ground surface?
contour A contour is defined as an imaginary line of constant elevation on the ground surface. It can also be defined as the line of intersection of a level surface with the ground surface. For example, the line of intersection of the water surface of a still lake or pond with the surrounding ground represents a contour line.
What is contour and contouring?
Contouring in surveying is the determination of elevation of various points on the land and fixing these points of same horizontal positions in the contour map. In the land property world, a contour is an outline of a mass of land.
What is isobar line?
Isobar (meteorology), a line connecting points of equal atmospheric pressure reduced to sea level on the maps. Isobaric process, a process taking place at constant pressure.
What is a ridge on a topographic map?
A ridge is a long narrow section of higher ground with lower ground sloping away. On a topo map look for contour lines that form a “U” shape. The bottom of the U will be pointing downhill. Ridges may connect several hilltops or they may slope gradually down in one direction.
What is the meridian line on a map?
Meridians. Imaginary lines that run north and south on a map from pole to pole. Meridians express degrees of longitude, or how far a place is away from the prime meridian.