1. Mapping Latitude & Longitude
©Mark Place,

2. Let’s Look at This Question:
How is latitude measured?

3. To get to the next line of latitude, you must move in which of two directions?10 20 30 40 50 60 70 80 90 15 45 75
105
120
135
150
165
180 E F G H
Latitude
Equator

4. 10 20 30 40 50 60 70 80 90 15 45 75
105
120
135
150
165
180 E F G H
North
South

5. Latitude is measured
North
South
and
from the
Equator

6. Let’s Look at This Question:
How is longitude measured?

7. Longitude 10 20 30 40 50 60 70 80 90 15 45 75
105
120
135
150
165
180 E F G H
To get to the next line of longitude, you must move in which of two directions?
Prime Meridian

8. 10 20 30 40 50 60 70 80 90 15 45 75
105
120
135
150
165
180 E F G H
West
East

9. Longitude is measured
East
West
and
from the
Prime Meridian

10. Let’s do some plotting.

11. Give the coordinates of the points below. Use Lat°,Long° format.10 20 30 40 50 60 70 80 90 15 45 75
105
120
135
150
165
180 E F G H D A B C

12. State the coordinates for each of the letters in the figure above:10 20 30 40 50 60 70 80 90 15 45 75
105
120
135
150
165
180 E F G H
20°N, 75°E
65°N, 50°W
70°S, 15°E
10°S, 135°W

13. If you “zoom in” on a map, you can get more specific coordinates
If you “zoom in” on a map, you can get more specific coordinates. These are listed as
Minutes
and
Seconds
There are 60 minutes in 1 degree and 60 seconds in 1 minute, but usually we will list the degrees in decimals.
For example, the location of Monument, CO is 39°4’52” N, 104°51’45” W
OR 39.5°N, 104.5°W

14. Give the coordinates of the points below. Use Lat°,Long° format.1 2 3 4 5 6 7 8 9 10 11 12
Include degrees and minutes! D A B C

15. Give the coordinates of the points below. Use Lat°,Long° format.1 2 3 4 5 6 7 8 9 10 11 12
Include degrees and minutes!
1.3°N, 6.5°W
2.3°N, 7.1°E
1.3°S, 6.7E
4.0°S, 4.3°W

16. LONGITUDE
EACH HOUR,
EARTH ROTATES
15°
(360°/24hrs)

17. HOW MANY TIME ZONES?

18. HOW MANY TIME ZONES?
24 TIME ZONES, 15° APART

19. People on the same line of longitude have the same
Local Time

20. Example: Two students record a difference in local time of two
hours. How many degrees of
longitude apart are they?
15° x 2 hours = 30°

21. Cartographer – A map maker Hemispheres – Halves of the Earth:
North & South are split at the equator
East & West are split at the Prime Meridian
United States is in the North & West hemispheres

22. Imaginary Lines of Earth
Latitude – Parallel lines, N & S
Highest Latitude degree: 90oN, 90oS
Reference line = Equator, 0o
“Walking up a ladder to see an elf at the North Pole.”
Or “Latitude, Flatitude”
Longitude – Meets at Poles, W & E
Highest Longitude degree: 180o
Reference lines: Prime Meridian, 0o and International Date Line, 180o

23. Greenwich Mean Time (GMT):
Greenwich, England is located at 0°0’0”
Because of its location on the Prime Meridian, the world recognizes the clock time here at the Royal Observatory.
Time zones are measured approximately every 15° from the Prime Meridian or GMT.

24. Compares Map Size to Actual Surface
Map scale
Compares Map Size to Actual Surface
Shown as a Ratio
Example 1:200 (for every 1cm = 200 cm)
1:1,000,000
1:250,000
1:50,000 24

25. Tilt of Earth = 23.5o

26. Shape of Earth – Oblate Spheroid
flattened at the Poles,
bulged at the Equator