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Sat Oct 6, 2018, 07:40 PM

Any oceanographers here? Is the Pacific ocean rising?

I have been going to the same beach on the Central Coast of CA for years. I know many of the fixed rocks in the surf.

Today low tide was 2ft. Many of the rocks were exposed that were exposed last year when low tide was -1ft.

That is a three ft difference. Does sea level change?

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Reply Any oceanographers here? Is the Pacific ocean rising? (Original post)
wasupaloopa Oct 6 OP
defacto7 Oct 6 #1
4139 Oct 6 #2
wasupaloopa Oct 6 #3
jberryhill Oct 6 #5
roamer65 Oct 6 #4

Response to wasupaloopa (Original post)

Sat Oct 6, 2018, 08:03 PM

1. I'm no oceanographer

but I do know the ocean doesn't rise equally at all points. It depends on the density/gravity of the earth at any given point and also the sub-ocean terrain. The ocean isn't uniform in height at the surface. Some places would flood when others don't. After enough water accumulates there would be a general increase. It also depends on the moon's distance, that changes.

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Response to wasupaloopa (Original post)

Sat Oct 6, 2018, 08:29 PM

2. Tides vary, they are not the same week after week, month after month


This article talks about “King” or peak extreme high tides, there are also extreme low tides
https://www.google.com/amp/amp.sanluisobispo.com/news/weather/weather-watch/article187741728.html

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Response to 4139 (Reply #2)

Sat Oct 6, 2018, 08:48 PM

3. Thanks

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Response to wasupaloopa (Reply #3)

Sat Oct 6, 2018, 09:38 PM

5. This is an island only a couple of times a year


On tide charts for places where it matters, you’ll often see an additional number giving an index figure for how high or low a tide will be.



Most of the time, it’s a mudflat of varying proration. Occasionally people get caught out there.

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Response to wasupaloopa (Original post)

Sat Oct 6, 2018, 08:49 PM

4. Also depends on the orbital position of the Moon.

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