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Actual Global Horizontal Sensor Arrangement, View from Above

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Presentation on theme: "Actual Global Horizontal Sensor Arrangement, View from Above"— Presentation transcript:

1 Actual Global Horizontal Sensor Arrangement, View from Above
#1 #3 7 m 7 m 1 m α314 = 76.8º α314 = 76.8º α214 = 21.3º d14 = 19.3 m N (0º) N (0º) d12 = 18 m 190º 190º #2 #2 7 m 7 m #4

2 View Four Global Horizontal Sensor Curves.
Shadow Event #1, May 02 08:17 CST. 40-Second Window. Recovery from Shadow. View Four Global Horizontal Sensor Curves. (Visual Basic program)

3 Shadow Event #1, cont. Select the Analysis Window
Shadow Event #1, cont. Select the Analysis Window. Click “SOLVE” to Shift and Scale Waveforms for Maximum Linear Correlation, Which Yields the Relative Time Delays.

4 The Results are Velocity = 7.7 m/s, Heading = 30.7° Azimuth.
Shadow Event #1, cont. Click “CALC_ERR” to Solve for Shadow Speed and Heading. The Results are Velocity = 7.7 m/s, Heading = 30.7° Azimuth. Page 6 of 27

5 The Results are Velocity = 7.7 m/s, Heading = 30.7° Azimuth.
Shadow Event #1, cont. Click “CALC_ERR” to Solve for Shadow Speed and Heading. The Results are Velocity = 7.7 m/s, Heading = 30.7° Azimuth. 18 m 7 m N (0º) 190º #3 (NW) #1 (SW) #4 (NE) #2 (SE) 2.22 sec 0.0 sec 2.67 sec 0.33 sec 1 m 7.7 m/s View from Above

6 Shadow Event #2, May 12 15:22 CST. Onset of Shadow
Shadow Event #2, May 12 15:22 CST. Onset of Shadow. View Four Global Horizontal Sensor Curves.

7 Velocity = 5.8 m/s, Heading = 132.9° Azimuth.
Shadow Event #2, cont. Shift Curves, Scale, and Solve for Shadow Speed and Heading. Velocity = 5.8 m/s, Heading = 132.9° Azimuth.

8 Velocity = 5.8 m/s, Heading = 132.9° Azimuth.
Shadow Event #2, cont. Shift Curves, Scale, and Solve for Shadow Speed and Heading. Velocity = 5.8 m/s, Heading = 132.9° Azimuth. 18 m 7 m N (0º) 190º #1 (NW) #2 (SW) #3 (NE) #4 (SE) 0.0 sec 1.66 sec 0.92 sec 2.78 sec 1 m 5.8 m/s View from Above

9 Shadow Event #3, May 09 12:30 CST. Sun Peaks Through Cloud
Shadow Event #3, May 09 12:30 CST. Sun Peaks Through Cloud. View Four Global Horizontal Sensor Curves.

10 Velocity = 4.0 m/s, Heading = 207.1° Azimuth
Shadow Event #3, cont. Shift Curves, Scale, and Solve for Shadow Speed and Heading. Velocity = 4.0 m/s, Heading = 207.1° Azimuth

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