Contour Map : Simple Definition and Meaning
A contour map, also known as a topographic map or a contour plot, is a graphical representation of the shape and elevation of a terrain or surface. It is typically used to depict the physical features of an area, such as hills, valleys, mountains, and rivers.
Contour maps are created using contour lines, which are lines that connect points of equal elevation or altitude above a reference point, such as sea level. These lines represent a particular elevation or height above or below the reference point, and they are drawn on a two-dimensional map to provide a visual representation of the three-dimensional landscape.
Contour lines on a contour map are typically shown as brown lines, and they are spaced apart at regular intervals, known as contour intervals, which represent the vertical distance between each contour line. Closer contour lines indicate steeper slopes, while wider spacing between contour lines indicates flatter areas.
Contour maps are widely used in various fields, including geography, geology, civil engineering, environmental science, and outdoor recreation. They are used for purposes such as land surveying, planning and designing infrastructure, analyzing watersheds, understanding geologic formations, and navigating in outdoor activities like hiking, camping, and mountaineering. Contour maps provide important information about the topography and relief of an area, helping users to understand the shape and elevation of the land for various purposes.
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