Latitude and Longitude
Latitude and Longitude ► The earth is divided into lots of lines called latitude and longitude .
Together they form a grid pattern on a map or globe
Lines of longitude only Other lines of lat Latitude added (Equator ) & long added
Lines of Latitude These parallel lines on the globe are lines of latitude. http://plantwatch.sunsite.ualberta.ca/library/images/lat.jpg
Latitude North Pole 90 80 Lines of 70 60 [ latitude are 50 numbered 40 30 from 0 ° at Lines of 20 10 the equator latitude ] 10 to 90 ° N.L. are 20 numbered at the 30 40 from 0 ° at North Pole. 50 the 60 equator to 70 80 90 ° S.L. at 90 South Pole the South Pole.
Latitude The North Pole is at 90 ° N 40 ° N is the The 40 ° line of equator is latitude north at 0 ° of the equator. latitude. It is neither north nor south. It is 40 ° S is the 40 ° at the line of latitude center The South Pole south of the is at 90 ° S between equator. north and south.
Lines of Latitude ► Lines of latitude run east and west. ► Latitude measures distance from the Equator towards the North or South pole ► Lines of latitude never meet (circles around the globe) ► The lines measure distances in degrees from the center of the earth.
The Equator Latitude is measured above and below the Equator in degrees. http://nationalatlas.gov/articles/mapping/a_latlong.html#thre e
Where is 0 degree latitude ? ► The equator is 0 degree latitude. ► It is an imaginary belt that runs halfway point between the North Pole and the South Pole. Equator
90 degrees.. ? ► There are 90 degrees of latitude in the Northern Hemisphere & ► 90 degrees of latitude in the south pole. ► In total there are 180 degrees of latitude. ► WHY IS THE NORTH AND SOUTH POLE AT 90 degrees anyway?? Why that number?
Longitude Lines of longitude begin at the Prime Meridian. 60 ° E is 60 ° W is the the 60 ° 60 ° line of line of longitude west longitude of the Prime east of the W E Meridian. Prime Meridian. The Prime Meridian is located at 0 ° . It is neither east or west
Prime Meridian The Prime Meridian (0 ° ) and the 180 ° line split the earth into the Western Hemisphere and Eastern Hemisphere. Prime Meridian Western Eastern Hemispher Hemisphere e Places located east of the Prime Meridian have an east longitude (E) address. Places located west of the Prime Meridian have a west longitude (W) address.
INTERNATIONAL DATE LINE 180 ° ► SEPARAT RATES ES 2 CALENDAR ENDAR DAYS. S. Ameri rica ca to Asia ia – gain n a day Asia ia to Ameri rica ca – lose se a day
A location’s coordinates (____ ° N or S, ____ ° E or W)
By combining latitude and longitude, any location can be pinpointed
Lines of Longitude… ► Lines of longitude run north and south. ► Longitude meet at the North and South poles. ► Longitude measures distance East and West of the Prime Meridian ► The lines measure distances in degrees from the center of the earth.
Lines of Longitude http://plantwatch.sunsite.ualberta.ca/library/images/long.jpg
Where is 0 degree longitude ? ► The prime meridian is 0 degrees longitude. ► It is located in Greenwhich England. ► From this point, Longitude runs 180 degrees East or West ► There are 360 meridians of Longitude in total
Longitude Angles • Longitude is measured in degrees east or west of the Prime Meridian • Angles are measured from the centre of the earth (vertex of angle) east or west of the Prime Meridian http://www.csmate.colostate.edu/cltw/cohortpages/viney/latitude.html
Orange cut through lines of longitude Orange cut through lines of latitude
Latitude and Longitude combined Latitude and longitude measurements are based on angle measurements as shown in this diagram and previous two diagrams http://cache.eb.com/eb/image?id=64904&rendTypeId=4
What is the Lat and Long of this point? http://www.digitalgeography.co.uk/wp-content/uploads/2007/07/grid.jpg
Hemispheres ► By using the equator and prime meridian, we can divide the world into four hemispheres , north, south, east, west ► Hemi= half ► Sphere = circle
Latitude lines run east/west but they measure north or south of the equator (0 ° ) splitting the earth into the Northern Hemisphere and Southern Hemisphere.
Time Zones ► The Earth is divided into 24 time zones, corresponding to 24 hours in a day. ► As the earth rotates, the sun shines in different areas, moving from east to west during the course of a day. ► Places that have the same longitude will be in the same time zone.
LONGITUDE AND TIME ► The world rotates (spins) 360 ° in 24 hours. 360 ° / 24 hours = 15 ° per hour ► The world has 24 time zones, each l5 ° apart. THERE IS A 1 HOUR TIME DIFFERENCE FOR EVERY 15 ° OF LONGITUDE
Time Zones: Daylight Savings
Earth rotates west to east Solar time is based on the position of the sun NIGHT IS FALLING ON EARTH Look at the East Coast of the United States. The lights are already lit. California the sun is still visible.
This pictures shows AMERICAN CITIES at night.
Saguenay Sept-Iles Thunder Bay Toronto St.John Ottawa It’s still daylight in California Québec Montréal Those light are Boston, New Detroit York, Philadelphia and Washington. Dallas Puerto Rico Houston Miami Mexico City Havana Port-au-Prince
NIGHT IS FALLING ON EARTH. Look at Paris and Barcelona, the lights are already lit, meanwhile in London, Lisbon and Madrid the sun is still visible. Looking south, we can see the islands in the middle of the ocean. We have a perfect view of the British Islands, Iceland and Canada.
Iceland England Atlantic France Ocean Spain Italy AFRICA
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