Latitude- Longitude Coordinate System · A. Coordinate System- system of locating a point on a...
Transcript of Latitude- Longitude Coordinate System · A. Coordinate System- system of locating a point on a...
Latitude-
Longitude
Coordinate
System
A. Coordinate System- system of
locating a point on a surface by
means of 2 numbers.
B. Latitude- Longitude Coordinate System-
- used to locate positions on Earth (curved surface)
1) Latitude- Angular distance
North and South of the Equator.
A) North –South lines above and below Equator
B) Parallels- lines of latitude are parallel to the Equator.
C) All parallels are smaller than the Equator
Lines of Latitude
http://plantwatch.sunsite.ualberta.ca/library/images/lat.jpg
These
parallel
lines on the
globe are
lines of
latitude.
Latitude (lines of parallel)
distance in degrees
north or south of the equator.
Lines of latitude are horizontal.
0o - equator
90o N- North pole
90o S- South Pole
LATITUDE
Latitude
Latitude
angles are
measured
from the
center of the
earth (vertex
of the angle)
http://www.csmate.colostate.edu/cltw/cohortpages/viney/latitude.html
Degrees, Minutes, Seconds
360 degrees in a circle
1 degree is 60 minutes
1 minute is 60 seconds
2) Longitude- Angular distance
east or west of the Prime Meridian
a) Prime Meridian- reference line 0°
b) Connects North and South Poles
c) Meridian- longitude lines
d) non-parallel
e) International Date Line (180°)
Prime Meridian
The Prime
Meridian passes
through
Greenwich,
England
http://www.mrsciguy.com/sciimages/longitude1.jpg
Prime Meridian Marker
A marker showing the
actual location of the
Prime Meridian in
Greenwich, England
http://www.cavinguk.co.uk/holidays/London200
6/normal/PrimeMeridian.jpg
Lines of Longitude
http://plantwatch.sunsite.ualberta.ca/library/images/long.jpg
Longitude Angles•Longitude is
measured in
degrees east or
west of the Prime
Meridian
•Angles are
measured from the
center of the earth
(vertex of angle)
east or west of the
Prime Meridian
http://www.csmate.colostate.edu/cltw/cohortpages/viney/latitude.html
Equator Latitude 0o
Latitude: (90oN to 90oS)
Latitude 23½o NorthTropic of Cancer
Latitude 23½o SouthTropic of Capricorn
Longitude 30o East
Longitude 60o East
Longitude 30o West
Longitude 60o West
Positioning on the Earth’s Surface
East is the direction of rotation of the Earth North Pole
South Pole
23½o
23½o
66½o90o
900
21st June
22nd December
22nd Sept
20th March
30oE60oE90oE90oW30oW60oW
Longitude 90oEastLongitude 90o West
Prime Meridian
0o Longitude
Longitude: (180oE to 180oW)
Latitude and Longitude together enable the fixing of position on the Earth’s surface.
Now you’re ready to find
some locations on a map!