that a New or Full Moon occured from Lunar perigee while the
X-axis shows the number of days that the lunar event occurred
after April 1st [There is no April Fool joke here].
The graphs show all of the most extreme Perigean Spring-Tide
events that occurred between 1800 and 1987. The lower a
tidal event appears in these two graphs and the closer a tidal
event is to Perihelion on January 3 rd [i..e. day 278 on the
X-axis] the greater its tidal strength. This means that the
relative strength of the extreme Perigean Spring Tides
becomes strong as you move from the upper-left of these
two graphs to the lower right.
The top figure shows all of the extreme Perigean
Spring-Tidal events that occur either one year prior to,
or in the starting year of, a recognized El Nino event.
The bottom figure shows all of the extreme Perigean
Spring-Tidal events that DO NOT occur either one
year prior to, or in the starting year of, a recognized
El Nino event.
A close comparison of these two figures clearly shows
that the strongest extreme Perigean Spring-Tidal events
are preferentially found either one year prior to, or in the
starting year of, a recognized El-Nino event.
Hence, this data supports the contention that strong
tides produced by extreme Perigean Spring-Tides play
an important role in instigating these influential climate
events.
You might want to read the following related post as
well:
http://astroclimateconnection.blogspot.com.au/2013/02/do-you-think-that-moon-might-have.html
