Doubt and Discussion on the Actual Tidal Datum of Pearl River Estuary

Some preliminary research and discussion for the distribution of tidal station and the application of tidal data

验潮站的布设和潮位资料应用中若干问题的初步探讨

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ADI ( Alternating Direction Implicit) method is used to solve tidal wave equation and data assimilation numeric trial experimentation is performed. Compared with the results obtained by ADI method, the assimilated results have better improvement.

用有限差分隐式方向交替（Alternating Direction Implicit，ADI）法求解潮波方程，并进行数据同化的数值试验，与未经同化的ADI法计算值相比有较好的效果。

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The point of this article: On the basis of the gains obtained by the former researches, the oceanic tides loading effects are obtained with the latest precise ocean tidal models and the data of china seas.

本文特点：在前人研究成果的基础之上，利用最新的由卫星测高资料所获得的高精度的海潮模型和中国近海资料研究海潮负荷效应。

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The tidal effect of the data is analyzed, and the interference factors are presented.

分析了该井水位观测资料潮汐效应，同时指出了影响该井水位观测质量的干扰因素，加深了对怀4井水位资料的认识，有助于今后分析预报水平的提高。

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Based on the tidal level observational data in China's coastal area in the past decade, the paper makes statistics of the annual mean processes and correlates them with the relevant meteorological data and literature for comparison and analysis.

根据我国沿海近10多年来潮位观测数据进行年均过程的统计，同时与有关气象资料和文献进行了联系比照分析。

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A method is presented, by which the plane strain state on the earth's surface can be obtained with the combination of tidal line strain data and the tidal shear strain can be simulated numerically.

提出了由潮汐线应变的组合观测资料获取地表平面应变状态和对潮汐剪切应变进行数值模拟的方法。

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The tidal level data from 21 tidal stations in radial sand ridge sea area of Jiangsu Province are analyzed by use of G-Godin's tidal harmonic analysis and prediction programs revised by M Foreman, and the harmonic constants of 11 constituents and corresponding mean sea level are obtained.

Foreman改进的G.Godin潮汐调和分析程序对江苏省辐射沙洲海域21个验潮站潮位资料进行调和分析，得到了11个分潮的调和常数及相应平均海平面。

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The tidal height data of 16 tide surveying sites in Jiangsu radial sand ridge sea area are analysed and predicted respectively using the G · Godin ′ s tidal height analysis and prediction programs revised by Foreman.

利用MForeman改进的G·Godin潮汐调和分析及预报程序对江苏省辐射沙洲海域的16个验潮站潮位资料进行了调和分析和潮汐预报。

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By using 11 global ocean tide models and tidal gauge data obtained in the East China Sea and South China Sea, the influence of the ocean loading on gravity field in China and its neighbor area is calculated in this paper.

利用11个全球海潮模型和中国东海及南海近海潮汐资料，计算了海潮负荷对中国及邻区重力场的影响，进而讨论了用近海潮汐资料修正全球海潮模型对负荷结果的影响。

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In the part of calculation of current field of the system, we used POM calculation mode for tidal current data.

在系统潮流计算部分，利用POM模式计算得到南海潮流数据。

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Some common methods in solid tidal observation data pretreatment and their computer realization

固体潮观测数据预处理中的一些常用方法及其计算机实现

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Besides, data of historical surge disasters in different coast sections are analyzed statistically and examined, historical tidal data are fitted using different models, and the values corresponding to different return periods show that the warning water levels above-mentioned are rational for the three sections.

此外，对历史潮灾及相应的潮高进行了统计分析检验，通过不同拟合方法对历史潮高资料进行了多年一遇检验，各拟定警戒潮位值适合各核定点所在岸段。

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The influences of the short tidal data and the "higher sea level in the south and lower sea level in the north" are expounded. At the end, some ideas and suggestions are put forward for the new level system "85 National Datum Level".

阐述了引用潮汐资料过程与我国海面南高北低的影响，对新高程系“85国家高程基准”提出了意见与建议。

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In this paper, the observed land surface height data and tidal data in the Yellow River delta foreland area are used to describe the variations in depth datum and tidal level in the area.

通过黄河三角洲前沿陆地高程的变化和验潮获得的资料，介绍了黄河三角洲前沿深度基准面的变化和潮位变化情况。

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For the need of the development of the Qinhuangdao Port, based on the observed tidal data of many years at the port, the design water level and the check water level are calculated in this paper.

鉴于秦皇岛港工程开发的需要，本大根据该港多年实测潮汐资料，推算了该港的设计水位和校核水位。推算得出秦皇岛港的设计高、低水位分别为1.63m和0.02m；

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According to tidal data, China's sea level has risen by 19~ 20 cm since the past 10 ka, with the rising rate of 2~ 3 mm/ a.

根据验潮资料，近百年来我国海平面上升19~20cm，上升率为2~3mm/a。

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Statistics of the tidal data from Qibao Hydrological Station over the years show an evident trent of being strengthened for the tide in Qiangtang River.

对钱塘江七堡水文站历年潮汐特征资料统计表明，自1980年以来，钱塘江潮汐呈明显增强的趋势。

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The paper analyzes and calculates the sediment coming from the sea by utilizing the observed hydrological and tidal data of the Yellow River estuary.

利用黄河口实测水文及潮汐资料分析计算了海向来沙情况。

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An introduction to the digital recording, the conventional earth tidal data processing and the software package for earth tides observation automation is given.

讨论了利用计算机进行潮汐观测数字记录及实时地实现常规处理的原理方法，并相应开发出潮汐观潮台站自动化管理软件包。

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In addition, it is found that the characteristic of this model was in agreement with the results calculated by real tidal data. 4.

另外还对模型进行了分析，其特征与验潮站实测数据计算的结果相符。

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