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Traverse Computations

Traverse Computations. Learning Objectives. Determine adjusted geographic coordinates from a geodetic field traverse. Lecture Outline. Introduction - traverse Calculate and adjust angle misclose Accounting for meridian convergence Traverse adjustment by Adjusting positions

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Traverse Computations

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  1. Traverse Computations

  2. Learning Objectives • Determine adjusted geographic coordinates from a geodetic field traverse

  3. Lecture Outline • Introduction - traverse • Calculate and adjust angle misclose • Accounting for meridian convergence • Traverse adjustment by • Adjusting positions • Adjusting observations • Conclusion

  4. Traverse Computations - Traverse Adjustment

  5. Traverse Computations - Traverse Adjustment

  6. Traverse Computations - Traverse Adjustment

  7. Traverse Computations - Traverse Adjustment Note allowance for Meridian Convergence

  8. Traverse Computations - Traverse Adjustment

  9. Calculate Coordinates • Use adjusted angles to calculate azimuths and distances through traverse • Use these to calculate coordinates throughout traverse • Note coordinate misclose at C

  10. Traverse Computations - Position Adjustment

  11. Traverse Computations - Position Adjustment

  12. Traverse Computations - Position Adjustment

  13. Traverse Computations - Position Adjustment

  14. Traverse Computations - Position Adjustment

  15. Traverse Computations - Position Adjustment

  16. Traverse Computations - Position Adjustment

  17. Traverse Computations - Check • Because the misclose is small in relation to legs of traverse, we can use plane trigonometry to adjust observations as a check

  18. Traverse Computations - Observation Adjustment

  19. Traverse Computations - Summary • Either adjust the coordinates, or • Adjust the azimuths and distances • You should get the same result both ways (allowing for small rounding differences).

  20. Conclusion You can now: • Determine adjusted geographic coordinates from a geodetic field traverse

  21. Self Study • Read relevant module and follow example

  22. Review Questions

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