Determination of quasigeoid heights.

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  • 擬ジオイド高度の決定
  • ギ ジオイド コウド ノ ケッテイ

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The main objective of the present work is to present methods to obtain detailed surveys of the shape of the quasigeoid from the point of view of three-dimensional constructing and rigorous computing of the astrogeodetic network. In the most general case we can construct a high-precision astrogravimetric leveling network such as first-order geometrical leveling network. Inside each circuit of the astrogravimetric leveling network we can interpolate quasigeoid heights by using Stokes formula. From such a point of view the accuracies of detailed surveys of the quasigeoid height have been evaluated and practical methods to obtain the surveys in Japan whose accuracies are necessary and sufficient for our purpose have been discussed. Finally the construction of astrogravimetric continuous network and its simultaneous adjustment with the astrogeodetic continuous network of Japan is proposed.

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