geoid

Study of the time variation of geoid

大地水准面时间变化的初步研究

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The actual equipotential surface of the earth that corresponds to sea level is called the geoid.

相当海平面的地球实际等位面称为重力平面.

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Geiod or quasi-geoid is a height datum for acquiring geospatial information.

大地水准面或似大地水准面是获取地理空间信息的高程基准面.

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The volcanic eruptions are correlated with geoid, the positive geoid anomaly can build up high normal stress, which is in favor of huge eruptions.

火山喷发活动还与当地的重力势有关，重力势正异常可能与高的正压力有关，有利于产生特大喷发。

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For cartographical purposes heights are necessarily recorded above the geoid ( sea-level ).

就制图的目的来说,所以需记录的高程是高出大地水准面 ( 海平面 ) 的高程.

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In this paper the geoid anomalies of middle short wavelength of China and its adjacent region are simulated on the basis of internal earth structure and distribution of density, which results from data of tomography, seismic sounding and telluric electromagnetic sounding.

依据地震层析成像、地震测深和大地电磁测深结果给出的地球内部结构和物性分布，模拟了中国及邻区岩石圈中短波长大地水准面起伏。

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Calculation and Inspection of Quasi-geoid Refining with Centimeter Level Accuracy in Harbin City

哈尔滨市厘米级精度似大地水准面精化计算与检核

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A fast Fourier transform method for computing geoid undulation

计算局部大地水准面变形的FFT方法

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Impacts of the formation and ablation of Antarctic ice sheets on the global geoid and sea-level changes

南极冰盖的形成与消融对全球大地水准面与海面的影响

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Tectonic and geodynamic pattern of marginal seas on the West Pacific inferred from Multi-satellite altimetry geoid

由多卫星测高大地水准面推断西太平洋边缘海构造动力格局

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Three-dimensional control surveying by GPS in a high accuracy local geoid

精化区域大地水准面以实现GPS三维控制测量

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Typical Applications of the Local Geoid Model with High Resolution and Centimeter Accuracy

高分辨率厘米级局部大地水准面的典型应用

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A Study of Combined Data Processing with GPS Leveling, Astro gravimetric Leveling and Gravimetric Geoid

GPS水准、天文重力水准与重力大地水准面多种数据联合处理的研究

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Using geoid to model seaward lithospheric flexure of the Ryukyu trench

利用大地水准面起伏模拟琉球海沟洋坡岩石圈的挠曲

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The practical application of formulae to the absolute gravimetry and refineding geoid are discussed.

此外,还讨论了如何将它们用于绝对重力测量和精化大地水准面的实际中.

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Geoid undulations and gravity anomalies from t/ p and ERS-1 altimeter data in the China Sea and vicinity

利用卫星测高数据推求中国近海及邻域大地水准面起伏和重力异常研究

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various gravity reduction methods and their influences on the geoid and the earth's external gravity field

重力归算及其对大地水准面及外部重力场的影响

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The external verifying shows that the accuracy of GPS leveling geoid is about 0.19m.

外部检核表明该大地水准面的精度约为0.19m。

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Research on Lunar Gravity Field and Effect of Perturbation on Lunar Satellite Orbit Comparison of the Regional Geoid Undulations Determinated by Geopotential Models

高阶次月球重力场模型截断下的低轨环月卫星轨道受摄分析地球重力位模型确定局部大地水准面起伏的比较研究

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The quasi-geoid computed by geopotential model is fitted with the quasi-geoid measured by GPS leveling.

将地球位模型计算的阜新似大地水准面拟合于GPS水准实测的似大地水准面.

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An alternative was to take advantage of all the existing relevant data from the region and to reprocess these to generate a new and improved geoid model.

另一个方案是集中区域现有所有相关数据的优势，并将其再加工从而生成一个崭新的、改良的大地水准面模型。

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Difference between geoid and quasi-geoid and its model verification

大地水准面与似大地水准面之差及其模型检核

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Comparison of the Regional Geoid Undulations Determinated by Geopotential Models

地球重力位模型确定局部大地水准面起伏的比较研究

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Isostatic geoid anomalies and lithospheric structure of the Qinghai-Xizang plateau& north Indian Ocean Region

青藏高原&北印度洋地区的均衡大地水准面异常和岩石圈构造

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Based on the Stokes formula and the spatial domain truncation approximation method, the analytic relationship was deduced between free-air gravity anomalies grid on geoid used in the inner area, global geopotential model in the outer area and precision of regional gravimetric geoid.

根据Stokes积分和空域截断逼近模式，推导了内区格网空间重力异常（大地水准面上）、外区全球重力场模型与大地水准面计算精度的解析关系。

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Base on theory of lithosphere elastic flexure isostatic compensation, the spheric harmonic series expressions of topography-isostasy compensation gravity and geoid are established.

依据岩石圈弹性挠曲均衡补偿理论建立地形-均衡补偿重力、大地水准面异常的球谐级数表达式。

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isostatic geoid anomaly has removed effect of shallow substance asymmetry, reflects substance distribution of deep earth.

均衡大地水准面异常已经消除了浅层物质不均匀的影响，反映的是地球深部物质密度不均匀分布。

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The modern definition of the geoid is as follows: the geoid is such an equigeopotential surface that is nearest to the mean sea level.

近代大地水准面被定义为最接近于平均海水面的重力等位面，但关键问题是如何确定这种大地水准面。

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the standard deviations for the latter set of heights are derived from a guess for the accuracy of the geoid interpolations.

后者高度的标准误差发源于对大地水准面插补精确性的一种猜测。

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Effects of Interface Undulations on Simulated Geoid

界面起伏对模拟大地水准面的影响

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