查询词典 geopotential

This dissertation focuses on the spherical wavelet expansion of the earth gravity field and its application. Based on the concept of the integration approaches and radial basis functions the spherical wavelet is put forward, with that the earth gravity field is described in a new way, and some other researches are conducted, they are: spherical wavelet regularization, multiscale approximation of satellite gravity measurement, down continuation of airborne geavimetry data, the least squares properties of geopotential wavelet approximation, the spherical wavelet solution of two kinds of BVP and spherical selective multiscale reconstruction.

本文围绕地球重力场的球面小波展开及其应用进行研究，在积分逼近与径向基函数概念的基础上引入了球面小波，利用球面小波对重力场展开进行了重新表示，在此基础上进行了球面小波正则化、卫星重力多尺度逼近、航空重力数据向下延拓、重力场球面小波逼近的最小范数性质、两类边值问题的球面小波实用解、球面选择多尺度去噪方法等方面的研究。

In the low-low satellite to satellite gravity mission, the intersatellite range and range-rate data are the observable values, while the intersatellite acceleration can be derived from the range-rate through digital differential. Using acceleration data, people can avoid solving the variation equations of the satellite motion and simplify the observation equations. But on the other side, the digital differential will amplify the observation noises and finally affect the solved geopotential accuracy.

低低卫星跟踪卫星的观测量是两低轨卫星的星间距离或星间速度，星间加速度由星间速度通过数值微分导出，用星间加速度作为观测量可以避免解算卫星运动的变分方程，简化观测方程的建立，但数值微分会使观测噪声放大，从而影响重力位的解算精度。

Fig.5 depicts the Southern Hemisphere midlatitude 300-hPa geopotential height field.

图 5 给出南半球中纬度 300 百帕位势高度场。

This is found to result from the existence of negative orography in this low-resolution model. It is shown that, over the grid-points where orography height is negative, there exists false sensible heat source that leads to warmer temperature and higher geopotential height.

利用位涡的特性，研究并模拟了大气流场在短时间尺度上对非绝热加热的响应，并提出了"过流"的概念：在加热层顶，即使非绝热加热消失，仍存在上升运动，反气旋涡度环流和冷中心。

The negative anomaly of sand dust days in the Northwest chinacompanied with the negative anomaly of geopotential height in the north Pacific, theabnormal strong 500hpa ridge of high pressure, and the abnormal high geopotentialheight field in the extratropical latitude of Asia, and vice versa.

当北太平洋地区位势高度偏低，青藏高原至新疆500hPa高压脊异常偏强，亚洲大陆中高纬高度场较常年偏高时，西北地区沙尘日数偏少，反之亦然。

The Singular Vector Decomposition analysis of monthly data of the NCEP-NCAR reanalysis and OAFlux reanalysis data for wintertime is used to study the relationship between the Kuroshio anomalous heating and the North Pacific geopotential height at 500 hPa.

利用NCEP/NCAR和OAFlux月平均资料，采用SVD方法分析冬季黑潮海域的热通量和北太平洋500hPa位势高度场之间的关系。

Model results show that snow anomaly in spring can cause the thickness anomaly in the troposphere and trigger a wave train of geopotential height anomalies from western Europe extending to East Asia at 500 hPa by changing the distribution of the soil moisture and temperature in succeeding summer.

结果表明，春季积雪异常通过改变其后夏季的土壤湿度和温度分布，造成对流层厚度场的异常，激发一个从欧洲西部到东亚的500 hPa 高度场异常波列。

By using the routine surface data and 500hPa geopotential height of the northern hemisphere the climatological features of ?

利用西藏地区的地面历史资料和500hPa高度场资料，就高原的季风气候特征作了分析。

The tests of WHU-GM-05 series are performed by multi-comparisons, which include the comparisons between the model series and several analogous international geopotential models including EIGEN-GRACE series and GGM02S with respect to the corresponding degree variances and geoidal heights, and comparisons of the model geoidal heights with GPS leveling in the area of U.S.

基于两颗GRACE卫星的观测数据，采用本文导出的严密能量积分方法求解得到120阶的GRACE地球重力场模型，命名为WHU-GM-05；将WHU-GM-05模型与国际上同类重力场模型EIGEN-GRACE系列和GGM02S分别在阶方差和大地水准面高等方面作了比较，并与美国和中国的部分地区GPS水准观测值进行了精度分析。

The latest geopotential model, EGM96, was employed to compute the free air gravity anomaly, geoidal separation, the average density anomalies of the crust and the uppermost mantle, and the distribution pattern of the viscous stress exerted by mantle convection over Xinjiang and its neighboring areas.

利用最新的地球重力场模型，计算了新疆及邻近地区的自由空气重力异常、大地水准面扰动异常、地壳和上地幔平均密度异常以及地幔对流引起的岩石层底界面粘滞应力场分布。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷