Research on density of the level ellipsoid
水准椭球密度问题研究

This paper reviewed the study on density of the level ellipsoid proposed by author and his colleagues during last ten years,presents the conception of Density Level Ellipsoid.These research approaches include uniform ellipsoid,parameter ellipsoid,latitudinal density ellipsoid,quasi-level ellipsoid and density level ellipsoid.The prospect of the research is discussed.