Find os map reference12/15/2023 ![]() ![]() If you wish to compare this to an Ordnance Survey Map you will need to convert the output to the OSGB36 co-ordinate system. I believe the output from this tool is in the WGS84 co-ordinate system. Wowowow By MaculinCukin on 11th August 2015ĥ minutes of this is enough, its useless, worst online map ever On 1st May 2015 Great Meme By Memealon 9001 on 13th August 2015 Since he came out, only one side of my meterīox is on, he fixed my meter and now I don't Great By Tanveer Ahmed on 28th February 2018Ī quick way of getting the area I required and FREE On 16th April 2016 Inaccurate? Doesn't agree with OS by 100 metres. Seems to be pretty accurate although some users may be used to Eastings first. Therefore consistently 100 metres inaccurate. This helps to match contour lines on the map to landscape features in real life, eg hills, valleys and spurs of land.Excellent overhead views but appears to give coordinates based on the WGS84(ETRS89) geoid which is not what the OS uses (OSGB36). We can use contour lines to create cross-section diagrams of landscapes. Contour lines that are far apart show land that increases or decreases in height slowly.Contour lines that are close together show land that increases or decreases in height quickly.On OS maps they are shown as thin orange or brown lines, some of which have the land height written on them. Spot heights show the height of a particular point on the map.Ĭontour lines are added to a map to show height and gradient. On a map, height is shown in metres above sea level. © Crown copyright and database rights 2015 Ordnance Survey Contours and spot heights Write the four figure northings number, but then add a third number to show how many tenths of the way up the grid square the place or object lies.Write the four figure eastings number, but then add a third number to show how many tenths of the way across the grid square the place or object lies. ![]() Six-figure grid references are found as follows: Six-figure grid references locate a place or object within a specific part of a grid square. The number will consist of another two digits giving a total of four, hence the name four figure grid reference. Then, write the northings number of the bottom left corner of the square (northings are found along the side of the map).First, write the eastings number of the bottom left corner of the square (eastings are found along the bottom of the map).Four-figure grid references are found as follows: The lines up the side of the map are called northings as they travel towards the north.įour-figure grid references locate a place or object within a grid square. The lines across the bottom of the map are called eastings as they travel towards the east. Every OS map has a grid, which is shown using faint blue lines. Grid references accurately locate places on a map. This may be used to show larger areas or regions. This may be used for individual towns and cities. Scale is shown as a ratio, eg 1:25,000 means that 1 cm on a map represents 25,000 cm or 250 m in real life. The relationship between the features on the map to the real size on the ground is called the scale. Maps show objects as being much smaller than they are in real life. Each OS map has a key to show what the symbols mean. OS maps show physical and human features as symbols. How to use an OS map, using scale and grid references Using a key ![]()
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