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Author Topic: Rising tide ?  (Read 6489 times)

Gary Troxel

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Rising tide ?
« on: February 27, 2017, 09:34:28 PM »

I have been interested for years and finally registered.  In Sterling Hayden's book "The Wanderer" he mentions "no tide in Tahiti.  I've wondered since Gardner is not far off in coordinates, why do you theorize about a rising tide washing plane parts off the reef ?
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Jeff Lange

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Re: Rising tide ?
« Reply #1 on: February 27, 2017, 09:55:55 PM »

Welcome Gary!
I don't know about the reasoning behind Mr. Haydens comment, but if you read anything on the site about the surf at Gardener/Niku you'll easily find out that there is indeed quite a tidal swing.
Jeff Lange

# 0748CR
 
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Martin X. Moleski, SJ

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Re: Rising tide ?
« Reply #2 on: February 28, 2017, 03:26:50 AM »

... if you read anything on the site about the surf at Gardener/Niku you'll easily find out that there is indeed quite a tidal swing.

TIGHAR has done an extensive investigation and published tidal tables for the island. 

By measuring the tides at Niku during an expedition, they correlated what happens there with tidal observations at other reference islands.

By establishing this link, they can use old tide tables from the reference islands to figure out what was happening on Niku from July 2, 1937, until the last possible transmission was made from AE and FN.
LTM,

           Marty
           TIGHAR #2359A
 
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Patrick Dickson

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Re: Rising tide ?
« Reply #3 on: February 28, 2017, 04:07:59 AM »

Maybe Mr. Haydens comment was on the small difference between high tide & low tide....Tide tables here
http://tides.mobilegeographics.com/locations/3639.html show differences between .6 feet-to-1.5 feet.
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Matt Revington

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Re: Rising tide ?
« Reply #4 on: February 28, 2017, 04:10:28 AM »

The apparent lack of tide in Tahiti is due to it being at a tidal node or amphidromic point which occur where by chance currents and wave action combine to cancel out tidal changes.

https://en.wikipedia.org/wiki/Amphidromic_point
« Last Edit: February 28, 2017, 06:48:40 AM by Matt Revington »
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Gary Troxel

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Re: Rising tide ?
« Reply #5 on: February 28, 2017, 08:42:53 AM »

Thank you all. Quite an education.
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