An improved gravimetric geoid model for Japan based on the Stokes–Helmert scheme with a deterministically modified Stokes’ kernel

Koji Matsuo1, Takayuki Miyazaki2, Basara Miyahara1 and Yuki Kuroishi3, (1)Geospatial Information Authority of Japan, Tsukuba, Japan, (2)Geospatial Information Authority of Japan, Ibaraki, Japan, (3)University of Tokyo, Tokyo, Japan