Your Global Address
Calculating Your Own Latitude and Longitude
Background
When you send a report to Journey North, please include the latitude and longitude
of your sighting. If you donÕt already know how, here's an activity for your
class.
Activity
Locate the place the sighting occured on a map. The map must include latitude
and longitude lines and should be as large as possible. Have students follow the
steps on the Global Address Student Worksheet below (Note: This worksheet applies
only to locations west of the prime meridian and north of the equator. This can be
used to find the global address of any location in that region.)
Global Address Student Worksheet
Global Latitude
- A. Find the place your sighting occured on a map. Between which two latitudes
is it located? (A) _____and_____
- B. How many degrees are between the two latitude lines you wrote down on line
A? (B) _____
- C. Measure the distance in centimeters between the two latitude lines on line
A, and write down that distance in centimeters. (C) _____cm
- D. Calculate the number of centimeters per degree latitude on this map. To do
this, divide centimeters____ [line C] by degrees_____ [line B ].Place the answer
here: (D) _____cm
- E. Measure the distance of the location from the southern latitude line in centimeters,
and put the answer here: (E) _____cm
- F. Divide the cm measurement on line E by the cm per degree figure calculated
on line D, and put the answer here: (F) _____
- G. Add line F to the southern latitude line from line A (G) _____(line F) and
write the answer here: + _____(line A) This is the global latitude for your sighting:
(put your answer in decimal form!)
Global Longitude
- H. Find the place your sighting occured on a map. Between which two longitude
lines is it located ? (H) _____and _____
- I. How many degrees are between the two longitude lines you wrote down on line
H? (I) _____
- J. Measure the distance in centimeters between the two longitude lines on line
H, and write down that distance in centimeters. (J) _____cm
- K. Calculate the number of centimeters per degree longitude on this map. To do
this, divide centimeters_____ [line J] by degrees_____ [line I]. Place the answer
here: (K) _____cm
- L.. Measure the distance of the location from the eastern longitude line in centimeters,
and put the answer here: (L) _____cm
- M. Divide the cm measurement on line L by the cm per degree figure calculated
on line K, and put the answer here: (M) _____
- N. Add line M to the eastern longitude line from line H (N) _____(line M) and
write the answer here: + _____(line H)
- This is the global longitude address for your sighting (put your answer in decimal
form!)
The full global address for your city is: ______ N latitude, _______W longitude.
Remember you must use decimal form. For example, the global adress of Buffalo,
NY is written: 78.85N, 42.91W. To enter this in the Journey North database we assume
"N" and "W",for latitude and longitude, so 78.85 and 42.91 would
be entered.
Copyright 2000 Journey North. All Rights Reserved. Please send
all questions, comments, and suggestions to our feedback form
|