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高阶高精度地球重力场模型具有广泛的用途。High order, high precision geopotential models have broad application.

图5给出南半球中纬度300百帕位势高度场。Fig. 5 depicts the Southern Hemisphere midlatitude 300-hPa geopotential height field.

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

重力场计算中，经常需要计算以有限阶球谐级数表示的重力场元。There are many gravity quantities expressed by finite spherical harmonic series expansions in the computing for geopotential.

本文分析了在新指数不同位相下，QBO对平流层纬向平均纬向风、经向风、温度以及位势高度场的影响。The influence of QBO on the zonal mean stratospheric zonal and meridional wind, temperature and geopotential height is analyzed.

为了获得这一垂直偏差，很有必要确定当地平均海面和全球大地水准面上的重力位值。In order to evaluate the vertical offset, it is essential to know the geopotential of the mean sea level and of the geoid as well.

实例计算表明，用这种方法解出的流函数反解出高度场无系统性降低和副热带高压减弱消失等现象。In order to test its accuracy, the balance equation is solved inversely to get inverted geopotential field from stream functions obtained.

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日常业务中计算500毫巴层位势倾向，在判断未来低值系统的移动和暴雨落区中，有一定指示意义。The calculation of the geopotential tendency gives good indications in the forecasting of heavy rain area and the movement of low systems.

该方法不受先验地球重力场模型的影响，具有在求解位系数的同时对加速度计数据的尺度和偏差进行标校的优点。This method can com-pute the geopotential coefficients and the scale and bias parameters for calibrating accelerometer data at the same time.

与其他模型比较表明，这种由超定剪裁法解得到的局部模型能够较好地改善重力场模型中波长部分的精度。From the comparisons with other kinds of models it can be seen that this new geopotential model can provide more high accuracy in medium wavelength.

这种下传现象与对流层上传波动以及平流层阿留申高压活动密不可分。In the winter half year, the dominant variability of the stratospheric polar vortex has the form of downward propagation of geopotential height anomaly.

这种方法与当前使用的计算方法间的主要不同点是它不需要完整的探空资料，只需要各层的位势高度。The main difference between this method and the method currently used is that it does not require entire sounding data except geopotential height of each level.

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当地球内部在重力势能和放射能的作用下继续熔融时，地球表面固化为原始岩石圈。With effect of geopotential and radiation energy, when the interior of the earth continued to melt, the surface of the earth solidified to form the original lithosphere.

对比检验表明，改进后的九层模式对高度场、温度场及降水场的模拟均要优于原五层模式。It is found that the improved nine level model has a better simulations of the geopotential field, the temperature field and the precipitation field in winter and summer.

而影响香港降水的因子复杂多样，主要受高度场、海温场和环流指数的影响。It also reveals that Hong Kong rainfall is affected by various complex factor fields namely geopotential height field, sea surface temperature field and circulation index.

本文利用地球重力位模型计算重力和重力梯度在应用中很有实用阶值，同时也是计算重力场其它量的关键。Computing gravity and gravity gradient using geopotential models has very practical value in application, and is al- so a key to computing other quantities of gravity field.

在齿轮本体温度场研究的基础之上，对齿轮有源温度场这一典型的位势问题从理论上进行了探讨。On the basis of the research into the bulk temperature field in gears makes research theoretically on the source temperature field in gears, which is a typical geopotential problem.

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研究了大气中的大尺度凝结降水和积云对流凝结降水对于环境气压场与位势高度场的直接影响。The direct effects of large-scale condensation precipitation and cumulus convection condensation precipitation on the ambient pressure field and the geopotential height field are studied.

以频域解析方法，研究由地面重力数据、全球位模型确定区域重力大地水准面的相对精度估计。Relative accuracy of regional gravimetric geoid determination is estimated by an frequency domain analysis, which is determined by regional terrestrial gravity measurements and geopotential model.