Notes on Submitting data
Sample filled out data form:
Entering Latitude and Longitude
Latitude is usually described in degrees, minutes, and
North (N) or South (S) of the equator.
Longitude is usually described in degrees, minutes, and
West (W) or East (E) of the prime
meridian line which passes through Greenwich, England.
This is based on a sexagesimal scale:
For calculation purposes, it is often necessary to convert this
angular measurement into decimal degrees. For example, to convert
A circle has 360 degrees, 60 minutes per degree, and 60 seconds per
There are 3,600 seconds per degree.
Examples of how to enter data:
Latitude 45:33:22 N (45 degrees, 33 minutes, 22 seconds, north of
Longitude 123:05:10 E (123 degrees, 5 minutes, 10 seconds, east of the
Preferred form for this data base: Decimal degree with appropriate
Example of latitude: 45.55 N
multiply 33 minutes by 60, which equals 1,980 seconds.
Next add 22 seconds to 1,980: 2,002 total seconds.
Now compute the ratio: 2,002/3,600 = 0.55.
Adding this to 45 degrees, the answer is 45.55°.
For other measurements make sure you include the units. For
the sun angle might be 37.3 degrees.
Submitting Circumference Data
After receiving shadow measurement information from your
partnering school and completing your circumference calculations, go to
the Project Data page and enter your
Back to Project Data page