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A map containing isolines can give a large view of how a particular field looks in terms of elevations. It can show steepness, where isolines are close together and gradual slopes, when they are further apart. The can indicate mountains and hills, as well as show depressions in the landscape. When an isoline has an upside down V shape, this shows that it crosses a river or stream. If the isolines are isotherms, they can indicate changes in temperature over a field. Once the rules of isolines are mastered, these maps are quite handy tools to represent the world around us.
These are lines along which some function has the same value at every point. They are used in, for example, cartography and meteorology.
In cartography, you have contour maps with isolines. Each spot on a given isoline is the same elevation. In meteorology you have isolines that show, for example, barometric pressure. These lines can, for example, show an advancing storm because they show which places have low pressure.
Yes, meteorologists emphasize differences of temperature on a map using isolines.For instance, the cold zones are blue colored and the hottest zones are red colored. Isolines are useful, because they But isolines can also be used to describe any other type of data. For example, the distribution of human beings around the Earth could be mapped using isolines. Some isolines have specific names. An isoline that represents temperature is called an isotherm. A contour line is an isoline that represents the same elevation. Isolines used to emphasize rainfalls are called Isohyets.
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