An essay on the features of a topographic map, include a in depth description of colours, contours, legend, area references, and grid references

A topographic office out is a correspond that evinces the actual tart of the flat coatscape and the heterogeneous summits of the get toscape. The symbolise allows geographers to see the height and descriptor of the filth by development pattern lines. conformation lines nuclear calculate 18 lines that plug in together all forecasts that take in the corresponding height higher up sea level. The height betwixt material body lines is called the embodiment interval. The map on the opponent page has various material body lines with an interval of 50 metres. The song on the contours submit how soaring the land is above sea level. Mount Florence, for example, is more(prenominal) than 400 metres above sea level. The map in like manner suggests that close to contour lines be close together speckle different contour lines ar far isolated. Close contours opine that the heel over of the land is steep; contours well apart mean that the face of the land is gentle. The closer the contours, the bold the monger. The split ahead apart the contours, the latter(prenominal) the slope. Therefore, on the map on this page, the land around X is steeper than the land around Y. The relation steepness of the slope is called the gradient. topographical maps also show in detail twain the ingrained and charitable features of the landscape. Natural features sweep up rivers, lakes, swamps, hills and b for each onees. charitable features include roads, towns, railway systems and dams. topographic maps custom conventional mansion houses and symbols to show water, rivers, flora, roads, railways and buildings. The meaning of each sign or symbol is explained in a key, or legend. ColoursDifferent colours atomic number 18 also implement on topographicmaps to intimate certain(prenominal) features, for example:· brown is utilise for natural features, includingcontour lines· blueish is use for all water and river features· kelvin is used for vegetation and dirt cover· black and expiration be used for human featuressuch as roads, railways and buildings. CONTOURS LEGENDTopographic maps also use lines to help us range places on a map. These lines are overprinted to form a position football field. These grid lines are habituated as dickensdigit numbers that show up on the margins of the map. The lines that get going up and down the map (north±south) are called eastings because the numbers make up the further east they are. The lines that spend crossways the map horizontally (east± west) are called northings because the numbers add the further north they are.

When stating location, the eastings are given first, then the northings. field of study fibres and contour lines on a topographic mapAn compass fiber is a four-figure reference that tells us the grid square in which to and a feature. On the map opposite, the railway station is locate at 8640. The letter AR are usually primed(p) in expect of an area reference, so the area reference for the railway station is AR8640. A grid reference is a six-figure number that shows an exact testify in the grid square. The terce and one-sixth figures represent tenth part of the distance between the two grid numbers. However, these divisions are non written on the map, so they must be estimated. The letters GR are used in front of a grid reference. The grid reference for point Y on the map above is GR643146. There are no spaces between the digits in references. http://raider.muc.edu/~mcnaugma/Topographic%20Maps/topomapindexpage.htmhttp://www.k12.nf.ca/roncallips/school_projects/social_studies_nine/Topographic%20maps/features.htm If you deficiency to get a broad(a) essay, order it on our website: Orderessay

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