unnderstanding longitude & latitude

Download Unnderstanding Longitude & Latitude

If you can't read please download the document

Upload: starbuck

Post on 07-Jan-2016

21 views

Category:

Documents


0 download

DESCRIPTION

Unnderstanding Longitude & Latitude. Typical Graph. This is an example of a typical graph we are all familiar with. The graph is made up of different “points” with lines that connect the points. Typical Graph. Y axis. Each point has two values: - PowerPoint PPT Presentation

TRANSCRIPT

PowerPoint Presentation

UnnderstandingLongitude & LatitudeTypical Graph

This is an example of a typical graph we are all familiar with.The graph is made up of different points with lines that connect the points.Typical Graph

Each point has two values:The X value that runs along the horizontal X axisThe Y value that runs along the vertical Y axisY axisX axisTypical Graph

X value is always stated firstFollowed by the Y valueThe origin is the point where the 2 axes intersect with a value of (0,0)(0,0)(3,8)YX(9,5)Typical GraphA point can also have negative (-) valuesNegative X values are to the left of the origin (0,0)Negative Y values are below the originXY(-X,+Y)(+X,-Y)(+X,+Y)(-X,-Y)(0,0)East West, North South on The Earth

Let the X axis be the Equator.Let the Y axis be the Prime Meridian that runs through Greenwich outside of London.Lat/Long are the 2 grid points by which you can locate any point on earth.YXEast West, North South on the Earth

Let each of the four quarters then be designated by North or South and East or West.NSEWEast West, North South on the Earth

The N tells us were north of the Equator. The S tells us were south of the Equator.The E tells us that were east of the Prime Meridian. The W tells us that were west of the Prime Meridian.(N, W)(N, E)(S, W)(S, E)East West, North South on the Earth

That means all points in North America will have a North latitude and a West longitude because it is North of the Equator and West of the Prime Meridian.(N, W)Prime MeridianEast West, North South on the Earth

What would be the latitude and longitude directions in Australia?Prime Meridian?If you said South and East , youre right! What is Latitude?

Latitude is the distance from the equator along the Y axis.All points along the equator have a value of 0 degrees latitude.North pole = 90NSouth pole = 90SValues are expressed in terms of degrees.YX90S90NWhat is Latitude?

Each degree of latitude is divided into 60 minutes.Each minute is divided into 60 seconds.

YX90S90NThis is also true of longitude.What is Latitude?

For Example:36 9 33NThis is close to the latitude where you live.

YX90S90NWhat is Longitude?

Longitude is the distance from the prime meridian along the X axis.All points along the prime meridian have a value of 0 degrees longitude.The earth is divided into two parts, or hemispheres, of east and west longitude.

YX180W180EWhat is Longitude?

The earth is divided into 360 equal slices (meridians)180 west and 180 east of the prime meridian

YX180W180EWhat is Latitude?

Our latitude and longitude might be:36, 9,33N80, 10, 4W

YX90S90N

So Where is (0,0)?

The origin point (0,0) is where the equator intersects the prime meridian.(0,0) is off the western coast of Africa in the Atlantic Ocean.See If You Can Tell In Which Quarter These Lon/Lats Are Located

1. 41N, 21E2. 37N, 76W3. 72S, 141W4. 7S, 23W5. 15N, 29E6. 34S, 151EABCDSee If You Can Tell In Which Quarter These Lon/Lats Are Located

1. 41N, 21E2. 37N, 76W3. 72S, 141W4. 7S, 23W5. 15N, 29E6. 34S, 151EABCD1. B 2. A3. C4. C5. B6. D

See if you can find those same latitude/longitude locations on a map!In Summary!EquatorLatitude 0oLatitude: (90oN to 90oS) Latitude 23o NorthTropic of CancerLatitude 23o SouthTropic of CapricornLongitude 30o EastLongitude 60o EastLongitude 30o WestLongitude 60o WestPositioning on the Earths SurfaceEast is the direction of rotation of the EarthNorth Pole

South Pole23o 23o 66o 90o90021st June22nd December22nd Sept20th March30oE60oE90oE90oW30oW60oWLongitude 90oEastLongitude 90o WestPrime Meridian0o Longitude

Longitude: (180oE to 180oW)

Latitude and Longitude together enable the fixing of position on the Earths surface. Now youre ready to find some locations on a map!