申文斌, 晁定波. 实现1°×1°全球cm级大地水准面的一种理论方案[J]. 武汉大学学报 ( 信息科学版), 2008, 33(6): 612-615.
引用本文: 申文斌, 晁定波. 实现1°×1°全球cm级大地水准面的一种理论方案[J]. 武汉大学学报 ( 信息科学版), 2008, 33(6): 612-615.
SHEN Wenbin, CHAO Dingbo. An Approach of Realizing the Global 1°×1° Geoid at Centimeter-Level Accuracy[J]. Geomatics and Information Science of Wuhan University, 2008, 33(6): 612-615.
Citation: SHEN Wenbin, CHAO Dingbo. An Approach of Realizing the Global 1°×1° Geoid at Centimeter-Level Accuracy[J]. Geomatics and Information Science of Wuhan University, 2008, 33(6): 612-615.

实现1°×1°全球cm级大地水准面的一种理论方案

An Approach of Realizing the Global 1°×1° Geoid at Centimeter-Level Accuracy

  • 摘要: 阐述了采用Stokes方法或Molodensky方法难以确定全球cm级大地水准面的理由。提出了一种实现具有分辨率1°×1°的全球cm级大地水准面的理论方案,并给出了实施步骤,其基本前提是给定全球具有分辨率为1°×1°的mGal的引力位模型以及精度较高的地表浅层密度分布。

     

    Abstract: It is declared that the global geoid with one centimeter-level accuracy is difficult to be realized using Stokes or Molodensky approach.Under the assumption that the density distribution of the shallow mass layer bounded by Ω and a closed reference surface Γ that lies under the geoid G as well as the the global 1°×1° gravitational potential field model is given;an approach for determining the global 1°×1° geoid with centimeter-level accuracy is proposed;and its actual realization procedure is provided.

     

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