The lunar nodal tide effect can be considerably larger though, for a
period much shorter than 18.6 years, e.g. the 11-year (1993–2004)
period. However, this signature is witnessed in both the altimetry
AND the tide gauges. As a result these data are affected in the same
manner. When subtracting tidal solutions of sea level from the
altimetry solutions over the same time span, regardless of how long
the records are, this lunar node effect will cancel out.