Posted by Daniel H on December 29, 2015, 8:31 pm
189.164.99.71
It's nice that the low tide is in the afternoon for this week (the yellow part at the bottom)
Normally there are two low and two high tides per day, like this chart from December 10
There are three different kinds of tides.
"When the two highs and the two lows are about the same height, the pattern
is called a semi-daily or semidiurnal tide. If the high and low tides differ
in height, the pattern is called a mixed semidiurnal tide. Some areas,
such as the Gulf of Mexico, have only one high and one low tide each day.
This is called a diurnal tide".
So here in La Manzanilla we have a mixed semidiurnal tide.
Low and high tides are mostly caused by the gravity of the moon and
the sun, when the moon and sun are aligned as they were on December 10
we get very high
And very low tides
But starting Wednesday to the end of the week there is really only one low
and one high tide per day. What would normally be a low tide has changed into
a little bump.
From what I gather that is due to the position of the sun and the moon (which are
far from aligned) as shown below.
Here is a video of the solar system from December 10 2015 to January 10 2016
30 days, one revolution of the moon around the earth
You can go here and increase the resolution to HD and go full screen if you
want to really see our planet going through the solar system for one month.
https://www.youtube.com/watch?v=L9bpmN-VIh4
Sorry I didn't get Saturn in the picture (it's off to the right)
I am just learning how to do screen videos.
Here are a couple of links.
http://www.solarsystemscope.com/
https://www.google.com.mx/search?hl=en-MX&source=hp&biw=&bih=&q=only+one+high+tide+per+day&btnG=Google+Search&gbv=1
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