Finding latitude and longitude co’ordinates

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Presentation transcript:

Finding latitude and longitude co’ordinates When finding co’ordinates, latitude always goes first (north/ south before west/ east) Find Latitude lines directly north and south of the feature Look for the equator and Greenwich Meridian to work out N/S or W/E 30o 40o 50o 60o 70o

Work out the exact latitude co’ordinates E.G Imagine the space in between the lines is divided into equal divisions (usually 10) Work out the exact latitude co’ordinates E.G Repeat steps to find longitude co’ordinates 30oS 40oS 50oS 60oE 70oE

Latitude and Longitude using minutes On large maps there is wide spaces between latitude and longitude lines, when they increase in degrees of one so… Places like Roxburgh, Alexandra and Cromwell could have the same references but they are 10-40km apart To work out their precise location of places between lines, each degree is divided into 60 parts called minutes

Locating latitude and longitude by using minutes Divide the gap between lines into 60 parts. Start at the lower number with zero and the higher number will be 60 (30 minutes is always halfway) 8o 9o 5o R T 4o 3o

How do you write coordinates? 25o 13’= twenty five degrees and 13 minutes TASK ONE: How many minutes are equivalent to ¼ degree? How many minutes are equivalent to ¾ of a degree? TASK TWO: Work out the latitude and longitude coordinates including minutes for the South Island towns on your map