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   重力测量 在 海洋学 分类中 的翻译结果: 查询用时:0.496秒
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重力测量
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  gravity measurement
Because the leveling route reaches over 120km in length and must go over two mountains in 2 800m height, the first-order precise leveling and precise gravity measurement should be carried out in the construction stage.
      
A gravity network was established by a crew of gravity measurement in July, 1981, with three LCR gravimeters.
      
The high accurate gravity measurement have been carried out many years in the capital region.
      
According to the characteristics of marine gravity measurement, this paper presents a new method of combined adjustment which takes into account both direct and indirect influence of position errors.
      
Development of an atom-interferometer gravity gradiometer for gravity measurement from space
      
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This paper discusses essential techniques for complex analyses of gravity data and maps with different gravity systems and normal gravity formulas.It also gives a table for converting gravity data of different normal gravity formulas within the region of 10°-40°N latitudes with an interval of 10 minutes.

本文论述的问题是在使用不同重力值系统和正常值公式的重力测量资料,图件时所必须解决的技术性处置,并提供10°—40°N范围内不同的正常重力值公式间的换算数据表。

The stress fields of mantle convection current of various models in the South China Sea and its vicinity are computed by using hydrodynamic equations and spheric harmonic coefficients determined from satellite and surface gravi-tional surveys. These models reveal to a different extend characteristics of inter- and inner-plate movement of various scales and orders. The field of complete- and low-degree harmonics reflect patterns of large-scale plate movement and Collided boundary. They suggest that the continental...

The stress fields of mantle convection current of various models in the South China Sea and its vicinity are computed by using hydrodynamic equations and spheric harmonic coefficients determined from satellite and surface gravi-tional surveys. These models reveal to a different extend characteristics of inter- and inner-plate movement of various scales and orders. The field of complete- and low-degree harmonics reflect patterns of large-scale plate movement and Collided boundary. They suggest that the continental margin of East Asia was formed by fracture and separation of the continental margin, and that the mantle convection current crept to the ocean. The stress field of medium- and high-degree indicates that the stress field features of mantle convection current of the continental margin graben system corresponded relatively well with the tectonic features. It provides basic information on the formation of the marginal seas, especially the South China Sea.

本文利用卫星、地面重力测量资料确定的球谐函数系数和地幔流体力学方程计算了南海及其围区不同模式的地幔流应力场。这些不同模式在不同程度上显示了不同规模的板块构造及板内构造特点。低阶及全阶场反映了大规模板块运动规律及碰撞边界,并为东亚边缘海是由于大陆边缘断裂解体、地幔向洋一侧蠕散的陆缘扩张观点提供了依据。高阶及中阶场则说明了陆缘地堑系的地幔流应力场特征与地质构造特点符合较好,并为边缘海尤其是南海的形成规律提供了新的基础资料。

An examination standard of the half-systematic error in marine gravity surveying is discussed in this paper.Then a method of adjusting the error is introduced. Finally a relative computation formulae of precision estimation is put forward.

本文在讨论海洋重力测量半系统差检验标准的同时,简要介绍了半系统差调整的一般方法,並给出相应的精度估算公式。

 
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