2002 Volume 41 Issue 5 Pages 15-19
This paper proposes determination of gravimetric deflections of the vertical derived from the gravimetric geoid“gsigeo2000”.Differences between the gravimetric and astronomic deflections are large in the mountainous areas, but are negligible in the flat and low land areas.The gravimetric deflections areuseful for the public survey of Japan to realize the projection method.