I. On an apparatus for facilitating the reduction of tidal observations
I. On an apparatus for facilitating the reduction of tidal observations
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DOI：
10.1098/rspl.1892.0082
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通讯作者：
George Howard Darwin
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作者：
George Howard Darwin
海洋的潮汐振荡可以表示为若干简谐波的总和，这些简谐波在一个平太阳日内经历大约一次、两次、三次、四次的周期。但是，如果所指的一天的长度适合于所考虑的特定波，那么这些简谐波可以被认为是严格的周日波、半日波、三日波等等。
The tidal oscillation of the ocean may be represented as the sum of a number of simple harmonic waves which go through their periods approximately once, twice, thrice, four times in a mean solar day. But these simple harmonic waves may be regarded as being rigorously diurnal, semi-diurnal, ter-diurnal, and so forth, if the length of the day referred to be adapted to suit the particular wave under consideration.