How to write a 4 figure grid reference
Thus in a 6 digit grid referencethe Easting component is and the Northing component isi.
Therefore is the four figure grid reference for this entire grid square or anything inside of it. This reference describes a metre by metre square, and not a single point, but this precision is usually sufficient for navigation purposes.
What is the difference between 4 and 6 figure grid references
The grid is further divided into 1 kilometre intervals, as shown in diagram C. Next, estimate how many tenths up the grid square your symbol lies. First, find the four-figure grid reference but leave a space after the first two digits. The distance between one grid line and the next is divided into tenths. In other words, the four figure grid reference for the square shaded in the grid above or anything which is inside of that square is simply Types[ edit ] Grid systems vary, but the most common is a square grid with grid lines intersecting each other at right angles and numbered sequentially from the origin at the bottom left of the map. To start, a four-figure grid reference is a handy way of identifying any square on a map. Therefore is the four figure grid reference for this entire grid square or anything inside of it. A grid reference locates a unique square region on the map. In the UTM system, the Earth is divided into 60 zones. Look at the number of this grid line and add it to the two-digit number you already have. You can see this in diagram B.
One can give the location of an object or objects on a map by naming the grid square in which it is located. How do grid references help me find places?
Types[ edit ] Grid systems vary, but the most common is a square grid with grid lines intersecting each other at right angles and numbered sequentially from the origin at the bottom left of the map. In this case, the tourist information office is in grid square In the Universal Transverse Mercator UTM system, grid reference is given by three numbers: zone, easting and northing.
The convention is the grid reference numbers call out the lower-left corner of the desired square. Things to remember: When you give a grid reference, always give the easting first: "Along the corridor and up the stairs".
4 and 6 figure grid references worksheet pdf
It is easy to find a particular place using a grid reference. Also you must not leave a space between the easting and the northing. In order to give a standard 6-figure grid reference from a figure GPS readout, the 4th, 5th, 9th and 10th digits must be omitted, so it is important not to read just the first 6 digits. The symbols on the map are not precise in any case, for example the church in the example above would be approximately x metres if the symbol was to scale, so in fact, the middle of the black square represents the map position of the real church, independently of the actual size of the church. The precision of location varies, for example a simple town plan may use a simple grid system with single letters for Eastings and single numbers for Northings. Each successive increase in precision from 6 digit to 8 digit to 10 digit pinpoints the location more precisely by a factor of Top tip! A beginners guide to grid references National map reading week This quick and easy guide explains how to read a simple grid reference and explains the basics for beginners. The horizontal lines are called northings as the numbers increase in an northerly direction. Grid lines on maps define the coordinate system , and are numbered to provide a unique reference to each location on the map.
Grid references are easy if you can remember that you always have to go along the corridor before you go up the stairs. Lucky for you, it is a very simple process.
4 figure grid references worksheet
Each square on the grid is known as a grid square. Write this number after the first two digits. Within each km square, a numerical grid reference is used. To find the number of a square first use the eastings to go along the corridor until you come to the bottom left-hand corner of the square you want. Still remembering to go along the corridor and up the stairs, work out the extra numbers you need and put them into your four-figure grid reference like this in diagram E: These are linked to the National Grid which provides a unique reference system, and can be applied to all OS maps of Great Britain, at all scales. For instance, if easting 22 crosses over an object such that part of the object is in grid square and the other part is in grid square , then the four figure grid reference for that object would be Next, estimate how many tenths up the grid square your symbol lies. In this case, the tourist information office is in grid square
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