Part 2. Measuring Azimuths and Bearings

2a. On your digital quadrangle, locate the following two points using the TerraGo Toolbar, and record their UTM coordinates. Remember to choose the proper datum and zone.

Point A: NW Corner of Ellison Hall, UCSB Campus

UTM: 

Point B: Benchmark 24 (Behind Vons on Fairview)

UTM:

2b. Record the magnetic forward azimuth from Point A to Point B in the table, using whole degrees. From this, calculate the true azimuth. If your declination is west, subtract the declination from the magnetic azimuth to get true azimuth. If the magnetic declination is east, you'll add the declination to magnetic north to get true azimuth. Finally, calculate back azimuths from both true and magnetic forward azimuths. Do the same for Quadrant Bearings and Back Bearings.

– If azimuth is less than 180°, add 180°

– If azimuth is more than 180°, subtract 180°

– Ex: Forward Azimuth = 10°; therefore, Back Azimuth = 10° + 180° = 190°

                                                        Magnetic     True

Forward Azimuth

Back Azimuth

Quadrant Bearing

Back Bearing

2c. On your digital quadrangle, use the TerraGo Toolbar to locate the following two points and record their UTM coordinates below.

Point C: Middle of Goleta Pier (at the bend)

UTM:

Point D: End of Goleta Pier

UTM:

On your paper quadrangle, mark and label C (start) and D (end) in pencil, and use a ruler to draw a line between the two points.

2d. Complete the table for points C to D using your paper quadrangle and compass.

                                Magnetic     True

Forward Azimuth

Back Azimuth

Quadrant Bearing

Back Bearing