EPSG:CODE

GDA94 to AHD height (49)

EPSG:4939 → EPSG:5711

Coordinate Reference Systems

Source CRS
EPSG:4939
GDA94
Geographic 3D
Target CRS
EPSG:5711
AHD height
Vertical

Remarks

File name previously called AUSGeoid09_GDA94_V1.01_DOV_windows.gsb. Replaces AUSGeoid98 model. Uses AUSGeoid09 model which uses bi-cubic interpolation; bi-linear interpolation of the grid file will give results agreeing to within 1cm 99.97% of the time.

Frequently Asked Questions

What is the accuracy of the GDA94 to AHD height transformation?

This transformation (EPSG:5656) has an accuracy of 0.15m using the Geographic3D to GravityRelatedHeight (AUSGeoid v2) method. Area of use: Australia - mainland.