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tidalcore water-level time-series analysis - documentation & datasets release 0.9.3 · MIT

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S2

A clean twelve-hour period makes S2 the easiest term to recognise by eye, and its beat against M2 over 14.8 days is the spring-neap cycle itself.

Angular speed
30 °/h
Period
12.0 h
Species
semidiurnal
Origin
principal solar
Rayleigh partner
M2, separated after 14.8 days
Resolvable
≥ 15 days
station-7 fit
amplitude 0.463 m, phase 238.2°, snr 104.1

Back to the table. Sum these into a curve. Data: /api/constituents.json