How to
Map
Satellite Telemetry Data
Instructions
The Satellite Data Mapping Charts in this lesson will help students pinpoint
the eagles' locations on a map. Using the satellite data provided
in each
migration update, they can accurately locate birds by following the instructions
on the charts provided. Using a transparency, students
can
draw on
top
of your
map as they work to find the exact location. Step by step examples
are also provided below.
Materials Needed
- Map, Transparency, Markers (erasable), Ruler
- Copy of Student Instructions
- Copy of Chart for Mapping LATITUDE
- Copy of Chart for Mapping LONGITUDE
Example #1: Find the Eagle's Latitude
| DATE | Latitude | ||||
|---|---|---|---|---|---|
| (A) Eagle's Latitude |
(B) | (C) | (D) | (E)= (C)x(D) |
|
| 2/02/05 |
44.34 N |
44 N |
.34 |
115 mm |
39.33 mm |
Column A: Record latitude here.
Column B: Find the nearest latitude line south of the eagle, and record that number here. Put a transparency on top of your map. Draw a line along this latitude line.
Column C: The eagle is a fraction of a degree north of the line you just drew for B. Record the fraction as a decimal in this column.
Column D: Measure the scale of your map for latitude. Record the scale here in mm per degree latitude.
Column E: Find out how far north (in mm) the eagle is located from the latitude line you drew for (B). To do this, multiply the decimal in column C by the scale of your map D and record the product here. Now draw a line this distrance north of the line you drew for (B). The eagle is located on this latitude line.
Example #2: Find the Eagle's Longitude
| DATE | Longitude | ||||
|---|---|---|---|---|---|
| (F) Eagle's Longitude |
(G) | (H) | (I) | (J)= (H)x(I) |
|
| 2/02/05 |
75.95 W |
75 W |
.95 |
164 mm |
155 mm |
Column F: Record longitude here
Column G: Find the nearest longitude line east of the eagle, and record that number here. Put the transparency back on your map. Draw a line along this longitude line.
Column H: The eagle is a fraction of a degree west of the line you just drew for G. Record the fraction as a decimal in this column.
Column I: Measure the scale of your map for longitude. Record the scale here in mm per degree longitude.
Column J: Find out how far west (in mm) the eagle is located from the longitude line you drew for (G). To do this, multiply the decimal in column (H) by the scale of your map (I) and record the product here. Now draw a line this distrance west of the line you drew for (G). The eagle is located on this longitude line, exactly where it intersects the latitude line.
Note
to Teachers
You may need to alter these instructions, depending on the scale of the
map you use. These instructions assume your map shows increments of 1
degree. If your map is different than this, follow the basic idea but
adjust your numbers accordingly.
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