Determination of geoid and elevation of the Mt. Qomolangma and discussion on the role of vertical gravity gradient

IT is known that the Mt. Qomolangma is the highest peak in the world. It was recorded in the"Map of Complete Territory of the Qin Dynasty" (published in 1717). As the highest peak,the Mt. Qomolangma not only provokes the interest of climbers but also arouses much atten-tion of geodesists. A significant cause is that the Mt. Qomolangma is located in the collisionbelt between the Indian Plate and the Eurasian Plate. According to the relative displacernent