CPP50121 Diploma of Surveying · Plot 6 of 10 · CPPSSI5054
Ellipsoid Reduction & Scale Factor Correction
1000 m
0.9999
Total correction (Dhoriz − Dgrid) in mm as ellipsoidal height h varies 0–800 m. Green = ellipsoid reduction. Blue dashed = scale factor (constant with h). Total = CSF correction. CSF = R/(R+h) × k.
Source: CPPSSI5054 Study Guide · R = 6 372 000 m (Perth, φ ≈ 32°S)