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调和常数
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  harmonic constant
     the difference of amplitudes and phase-lags of O1 constituent are 1.6cm and 5.5 .In addition, we choose 105 current stations, and compare between the calculated and observed harmonic constant, U cos , U sin , V cos , V sin of M2 and K1 component currents at surface layer, and the results also indicate that the computational results agree with observed ones well.
     O_1分潮振幅差1.6cm,相角差5.5。 另外,选取了105个实测潮流点,比较了表层M_2和K_1分潮流调和常数分量U cosζ、U sinζ、V cosη、V sinη的实测值与计算值的偏差,结果也表明计算与实测的符合程度较好。
短句来源
     These indicate that the computational results agree with the observed ones very well. In addition, 105 current stations are chosen, and the difference between the calculated and the observed harmonic constant, Ucosξ,Usinξ,Vcosη,Vsinη of M2 and K1 component currents at surface layer is compared, and the results also show a good agreement.
     另外,选取了105个实测潮流点,比较了表层M2和K1分潮流调和常数分量Ucosξ,Usinξ,Vcosη,Vsinη的实测值与计算值的偏差,结果表明计算与实测的符合程度较好.
短句来源
     In this paper, a numerical tidal model is used in a high-resolution self-adaptive curvilinear grid to simulate the movement of M2 tidal constituent in the sea region near Zhanjiang adopting the method of controlling the simulation accuracy with tidal harmonic constant.
     利用潮汐模型,在高分辨率的自适应曲线网格下,采用潮汐调和常数作为控制模拟精度的方法,模拟了湛江附近海域M2分潮的运动特征。
短句来源
     A new method of orthogonal analysis to extract the harmonic constants of tidal components is given in this study. The harmonic constant of M 2 is extracted from the TOPEX/POSEIDON altimetry data from1992through1997by using both the new method and least square method,respectively.
     给出了提取潮汐调和常数的一种新方法———正交方法 ,并应用 1992~ 1997年的TOPEX/POSEIDON卫星高度计遥感资料 ,提取中国海M2 分潮调和常数
短句来源
     The error of tidal harmonic constant in simulation is slight as compared with the observed value.
     模拟所得的潮汐调和常数同实测值相比,误差较小。
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  harmonic constants
     The Delft3D numerical model is also used for calculation of the harmonic constants of 8 constituents in this area.
     利用Delft3D数值模型计算研究该海域8个分潮的调和常数.
短句来源
     Compared with the current data from 16 observation stations, the mean absolute errors are 8.23 cm,23.74°and 7.36 cm,27.78° for the harmonic constants of the northward and eastward current component of M_2,respectively,and 8.39 cm,36.48°and 9.40 cm,38.04° for K_1 respectively.
     对于M2分潮潮流场,东分量和北分量的潮流调和常数与16个测站观测资料的平均绝对误差分别为8.23 cm/s,23.74°(); 7.36 cm/s,27.78(°)。
短句来源
     Using one months (1996.6.28~7.29) current data observed in middle of Bohai Sea(38°19′39.426″N,119°37 ′01.546 ″E), this paper carried out the harmonic analysis. The harmonic constants in North and East of 74 tidal components are calculated. Tidal current elliptic factors are then computed too.
     利用1996年6月28日至7月29日在位于渤海中部一点 (38°19′39.426″N ,119°37′01.546″E)获得的潮流调查资料 ,进行了一个月的实测潮流资料调和分析 ,计算了该站北、东分量各74个分潮的调和常数 ,进而计算各分量的潮流椭圆要素 ,给出了10个主要分潮的潮流调和常数及其椭圆要素。
短句来源
     It is discovered that large bias exists in harmonic constants of tides derived from monthly tidal observations,and that the biases show correlation between adjacent tidal gauge stations.
     发现了由一个月逐时潮位观测资料调和分析求得的调和常数与年资料观测序列分析结果存在的明显偏差,而且这种偏差在同步观测的邻近验潮站之间具有一定的相关性。
短句来源
     Based on 1 month of tidal data observed at the Tuandao and Xuejiadao, we obtained the harmonic constants of the M 2,S 2,O 1 and K 1 components by using a harmonic analysis method and developed a model for predicting the tidal currents in the Jiaozhou Bay.
     对胶州湾湾口两侧——团岛和薛家岛 1个月的潮位观测资料进行调和分析 ,得出湾口两侧 M2 ,S2 ,O1,K1分潮的调和常数 ,进而建立了胶州湾内的预报潮流场。
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  “调和常数”译为未确定词的双语例句
     With the data sampled near the crossover, harmonic analysis is performed to derive constants of 12 constituents( S a,S sa ,M m,M f,Q 1,O 1,P 1,K 1,N 2,M 2,S 2,K 2 ).
     用TOPEX/PO-SEIDON海面重复轨迹交叉点测高数据计算南中国海12个分潮(Sa,Ssa,Mm,Mf,Q1,O1,P1,K1,N2,M2,S2,K2)的调和常数
短句来源
     For m 1 tide, the average absolute difference of the amplitude is 1.4cm, and the average absolute difference of the phase-lag is 5.0°.
     计算所得调和常数与实测值之差的绝对平均值 :m1 潮波振幅差为 1 4cm ,迟角差为5 0°;
短句来源
     Firstly the method of harmonic analysis is used to withdraw tidal wave from T/P satellite altimeter data in the South China Sea.
     本文利用T/P卫星高度计资料对南海内潮进行三维数值同化研究:首先对T/P卫星高度计资料进行分析,利用调和分析方法从南海T/P卫星高度计资料中提取主要分潮调和常数;
短句来源
     T/P geophysical data records of cycles 10~186 are processed and the tidal waves are analyzed by the response method. The solutions along ground track are obtained for eight major constituents (M 2,S 2,N 2,K 2,K 1,O 1,P 1 and Q 1).
     文中对T/P第 1 0~1 86重复周期的资料进行处理 ,用响应法对提取的潮汐高度时间序列进行分析 ,得出沿 6条地面轨道 8个主要分潮的调和常数 ,与 6个实测站位数据比较 ,M2 ,S2 ,K1,O1的矢量差均方根分别是 8 8,4 7,3 2 ,1 6cm .
短句来源
     Firsly,the east and north components of the current vectors of 15 days at each computing grid are determined for the grids.
     首先按潮流数值模拟计算出连续15个周日各网格结点处整点时刻潮流的东、北分量,进而求出各结点的潮流调和常数
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  harmonic constant
The cochlear mechanics of bats with long constant-frequency components in their echolocation calls are sharply tuned to the dominant second harmonic constant frequency.
      
Compared to long-constant-frequency bats, the threshold maximum at the second harmonic constant frequency is less pronounced and the optimum cochlear frequency separation is larger.
      
Next, the harmonic constant k was increased in successive steps to facilitate the shift of the C terminus toward the attachment point.
      
  harmonic constants
The obtained harmonic constants of the major constituents are very close to those obtained from the analysis of hourly data, and this shows that high and low water data can be used to extract tidal constants with high accuracy.
      
Seasonal variability of the harmonic constants of the quarter-diurnal and sixth-diurnal constituents in the Barents Sea and Whit
      
New compound waves are proposed for approximation of the seasonal variability of the harmonic constants of shallow-water waves and for a more complete description of the tide.
      
With the application of electronic computers, the extraction of harmonic constants from high and low waters becomes an extremely simple process as compared with Doods'n's technique.
      
Results of both methods are evaluated from the differences with the most recent Grenoble hydrodynamic model (FES95.2) and from the fit with the harmonic constants of a globally distributed set of tide gauges.
      
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  harmonic coefficient
The anomalousR-I characteristics, third-harmonic coefficient and critical behavior are observed in the film system.
      
In particular, for excitation functions with a vanishing harmonic coefficient of degree zero, the (diagonal) incremental moments of inertia also can be represented by the excitation coefficients.
      
This results in spherical harmonic coefficient estimates that are of similar quality to those obtained without outliers in the input data.
      
The second harmonic coefficient of films poled by coronaonset at elevated temperature and the linear electro-optic coefficient of films poled by contact electrodes were measured.
      
The stabilized value of the second harmonic coefficient, d33, at 1064nm fundamental wavelength was found to be 13 pm/V.
      
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An application of finite difference scheme for the solution of two-dimensional hydrodynamical and diffusion equations is presented in this paper.Methods of harmonic constants are used in these equations,and the fields of velocity and distributional curve of salinity for Hangzhou Bay are given.

本文探讨采用主要分潮(11个分潮)的调和常数来计算边界数据。然后对流体力学方程组采用特征偏心差分格式对盐度扩散方程采用对时间的向前差分和对空间的向前、向后及中心差分格式,计算了冬夏两季潮汐和盐度分布,并进行分析对比。为盐度予报提供了一种可行的计算方法。

Based on the two-dimensional nonlinear hydrodynamic equations the tides and tidal currents in the Hangzhou Bay are numerically sover using finite difference method. The tidal flats, which appear and are submerged when the water level falls and rises, are also simulated. The diural [(K_1+O_1)/2], semidiurnal (M_2) and shallow-water (M_4, M_6,……) constituents of tide and current are obtained. The results, agree with the observed data satisfactorily. The distributions of tide and tidal current in the Bay are illustrated....

Based on the two-dimensional nonlinear hydrodynamic equations the tides and tidal currents in the Hangzhou Bay are numerically sover using finite difference method. The tidal flats, which appear and are submerged when the water level falls and rises, are also simulated. The diural [(K_1+O_1)/2], semidiurnal (M_2) and shallow-water (M_4, M_6,……) constituents of tide and current are obtained. The results, agree with the observed data satisfactorily. The distributions of tide and tidal current in the Bay are illustrated.

本文应用有限差分方法,对杭州湾的潮汐、潮流进行了数值计算,得到了全日((O_1+K_1)/2)、半日(M_2)和浅水(M_4,M_6)分潮的调和常数。计算结果与实测符合良好。文章根据计算结果描述了杭州湾的潮汐、潮流的分布及其特性。

With the application of electronic computers, the extraction of harmonic constants from high and low waters becomes an extremely simple process compared with Doodson's technique. The phenomenon of aliasing is examined by supposing the samples are taken at intervals of exactly 6 lunar hours. The constituents with frequencies satisfying the relation(σ_1±σ_2)=2σ_(M_2) are inseparable and the coefficient determinant of the normal equations will be singular if the heights only are used. When the values of the first...

With the application of electronic computers, the extraction of harmonic constants from high and low waters becomes an extremely simple process compared with Doodson's technique. The phenomenon of aliasing is examined by supposing the samples are taken at intervals of exactly 6 lunar hours. The constituents with frequencies satisfying the relation(σ_1±σ_2)=2σ_(M_2) are inseparable and the coefficient determinant of the normal equations will be singular if the heights only are used. When the values of the first derivatives and the irregularity of the sampling are taken into consideration the condition of the determinant is improved. Large diurnal tides can cause irregularity of sampling and so we are in favour of the separation of the aliased constituents. For tidal current data, if the slack times are available, the results of analysis can be much improved. The results far major constituents derived from the observed high and low waters agree satisfactorily with those from hourly data.

本文给出了由高、低潮数据计算潮汐调和常数和由最大流速及转流数据计算潮流调和常数的方法。文章还讨论了不同频率分潮间的混淆效应,指出本方法用于混合型和全日型潮汐可获得比半日型潮汐好的效果。对两个港口实测高、低潮数据分析表明,所得调和常数与由逐时潮高分析所得的数值一般较接近,但对长周期分潮较差。本方法所得调和常数用于预报高、低潮或最大流速和转流时可得到很好的结果。

 
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