Coordinate Reference Systems
Remarks
NTv2 grid derived by ESRI from that supplied by GSI in application tky2jgd. After Tohoku earthquake of 2011 accuracy in northern Honshu reduced to 1-5m and in this area replaced by Tokyo to JGD2011 (tfm code 6714).
Frequently Asked Questions
What is the accuracy of the Tokyo to JGD2000 transformation?
This transformation (EPSG:6712) has an accuracy of 0.2m using the NTv2 method. Area of use: Japan - onshore.