EPSG:CODE

ETRS89-GBR [OSNet v2009] to EWR2-IRF (1)

EPSG:11009 → EPSG:9763

Coordinate Reference Systems

Source CRS
EPSG:11009
ETRS89-GBR [OSNet v2009]
Geographic 2D
Target CRS
EPSG:9763
EWR2-IRF
Geographic 2D

Remarks

In conjunction with the EWR2-TM map projection (code 9765) applied to EWR2-IRF (code 9763), emulates the EWR2 Snake projection. Applied to ETRS89 (as realized through the OSNet v2009 CORS) defines EWR2-IRF hence is errorless. In 2024 the EWR2 Grid (ETRS89 / EWR2 SnakeGrid) was extended eastwards as the EWR3 Grid (ETRS89 / EWR3 SnakeGrid). To the west of Bedford the EWR2 Grid is an exact subset of the EWR3 Grid; over this extent the EWR3 Grid replaces the EWR2 Grid. The EWR2 emulation file TN15-ETRS89-to-EWR2-IRF.gsb is a subset of the EWR3 emulation file TN15-ETRS89-to-EWR3-IRF.gsb (see CT code 10850).

Frequently Asked Questions

What is the accuracy of the ETRS89-GBR [OSNet v2009] to EWR2-IRF transformation?

This is an exact transformation (EPSG:9764) with no loss of precision (0m accuracy) using the NTv2 method. Area of use: UK - Oxford to Bedford.