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L. Reduction Example: UTM
1. Preliminary Calculations
a. Survey Data
This chapter covers measurements reduction for a UTM cylindric zone.,
The survey data and UTM grid information for point Jerry are summarized in Figure L-1 and Table L-1.
 |
| Figure L-1 Survey Data |
| Table L-1 Orthometric Heights |
|
| Point |
H, ft |
| Jerry | 1177 |
| A1 |
1805 |
| B7 |
1340 |
b. Lengths, Coordinates and Orthometric Heights
Convert lengths and orthometric heights to meters; compute approximate UTM coordinates of A1 and B7.
Point A1
Point B7
Point Jerry
From its datasheet: orthometric height is 358.6 m.