Introduction to Longitude & Latitude Learning about Absolute Location Relative Location Where you are in relationship to other things! – For example: Direction (North, South, East, or West) Physical (streets or structures) Distance (feet, yards, or miles) You have a flat tire and no spare tire. You need help. Please tell the tow truck driver how to find you! Relative Location: Compass & Cardinal Directions N N NW E W NE E W SE SW S S N Relative Location NW NE E W SW SE S You are here! Absolute Location Your boat has ran out of fuel in the middle of the ocean. You need help Tell the coast guard how to find you. What do you do if there is nothing available to establish a relationship with. Absolute Location It is an imaginary grid system of lines covering the entire world. The main two divide the earth into hemispheres (halves) – Equator and Prime Meridian There are two sets Prime Meridian Equator of lines. Lines of Longitude and Latitude This is earth! Lines of Latitude Lines of Latitude – Starting Point: Equator 0 degrees – There are 360 lines (360 degrees in a circle) – Run from Left to Right – However, they measure North and South Lines of Longitude Lines of Longitude – Starting point: Prime Meridian 0 degrees – There are 360 lines (360 degrees in a sphere) – Run from up and down – However, they measure East to West – The starting point is the Prime Meridian, @ 0 degrees Finding Places Using Longitude and Latitude TLW locate places using Longitude and Latitude Recall: Grid Finding Places 109°W 108°W 107°W 106°W 105°W 104°W 103°W 102°W Find 40 ° N Latitude What city is located at this latitude? 41°N Boulder 40°N What line of Longitude is closest to this city? Denver Grand Junction Mt. Elbert 39°N Delta Pikes Peak Colorado Springs Pueblo 38°N Durango Latitude is always written first: 37°N How would you write the coordinates correctly for the city of Boulder? N Practicing Map Skills 1. 2. 3. 4. Which line of Latitude runs near Pikes Peak? Which line of Longitude runs near Pikes Peak? Write the correct location for Pikes Peak using Longitude and Latitude What city is near 39°N Latitude, 108°W Longitude? 109°W 108°W 107°W 106°W 105°W 104°W 103°W 102°W 41°N Boulder 40°N Grand Junction Mt. Elbert Denver 39°N Delta Pikes Peak Colorado Springs Pueblo 38°N Durango 37°N Answers 1. 2. 3. 4. 39°N 105°W 39° N Latitude, 41°N 105° W 40°N Longitude Delta 39°N 109°W 108°W 107°W 106°W 105°W 104°W 103°W 102°W Boulder Grand Junction Mt. Elbert Delta What is the coordinates of the City of Durango? 108° W Longitude Colorado Springs Pueblo 38°N Durango 37½° N Latitude, Pikes Peak Denver 37°N