新的引潮位完全展开

Doodson进行引潮位展开时的原始数据采自Brown及Newcomb表,其黄赤交角系采用1900年1月1日之值。目前Brown系数已重新计算,黄赤交角每世纪相对变化5×10^{-4;地球轨道偏心率每世纪相对变化25×10-4。由此引起的潮波振幅长趋势变化已可辨别,这就是所谓潮波振幅的时间依赖问题。作者采用EJC表及2000.0年的黄赤交角和地球轨道偏心率数值,重新用计算机演绎了引潮位展开式,解决了时间依赖问题。文中给出了属于J2000.0系统的引潮位完全展开表。}

A NEW COMPLETE DEVELOPMENT OF THE TIDEGENERATING POTENTIAL FOR THE EPOCH J2000.0

The original data used by Daodson as he worked out the development were taken from Brown and Newcomb; the value of the obliquity of the ecliptic is the value on January 1. 1900. i.e. e = 23°27'08". 26. At present, Brown's coefficients have already been recalculated; the obliquity of the ecliptic have relative changes of 5×10^{-4 per century and 25×10-4 per century in the eccentricity of the earth orbit. The secular trends due to those are discernible in the tidal amplitudes. This is the time dependency of tidal amplitudes. In order to solve the problem, we used the table of EJC and the values of the obliquity of the ecliptic and the eccentricity of the earth orbit to rededuce the development of the tide-generating potential with the computer. It will overcome" the problem of the timedependency.}