What Is Sea Level?

Submitted by: uatme 3 years ago Science

foolishness
There are 14 comments:
Male 14,773
"His voice annoys the sh*t out of me."

Me too, but I learned something.
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Male 339
Makes perfect sense to anyone who doesnt have their heads in the sand at, above, or below sea level.
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Male 7,775
I agree, it`s only been made complicated to keep those geo-wotsit guys in a job.
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Male 3,909
His voice annoys the sh*t out of me.
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Male 2,552
Makes sense. I love this guy`s videos.
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Male 2,670
Makes perfect sense to me, yes.
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Male 36,378
@BoredFrank: I`m not opposed to changing it, I said that! It will alter how we look at things though, we have to keep that in mind, eh?

Is the "Dead Sea" no longer "below sea level" anymore? ;-) I know: the sea level there is LOWER than anywhere else... takes some mental gymnastics.

"Sea Level" used to be a uniform measure, now it`s a VARIABLE. That makes sense?
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Male 2,670
GPS data is constantly updated based on significant geological activity, yes.
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Male 5,874
OK, so the sea level is dependant on local gravitational effects, and the WGS84 algorithm fixes it for GPS. I get that bit.
Now, what happens if there is an earthquake like at Banda Aceh or the recent Japan event? The land height is then different, the GPS will have to change will it?
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Male 7,031

Damn it, it`s a 70`s Southern Rock band ...

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Male 2,670
5cats -- the reason sea level is being refined and modernized is explained in the video -- GPS systems use the new sea level figures so you won`t be determined to be below sea level when you`re lying on the beach in Cancun. So there are important practical reasons that all these abstract calculations take place.
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Male 36,378
So sea level is now a different "height" at different places? Ooooo-KAY!

I`ve always thought it was an "abstract" representation anyhow, why change it? Are we going to change all the "above sea level" data in the world now?

I`m not saying no, the notion is well presented: Earth isn`t round, sea isn`t flat (equally spread on the round surface I mean!), that`s what the old "abstract sea level" is based on. Perhaps it`s due for a modernization?
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Male 2,670
Foolishness? Why do you say that? Are you a flat-Earther?
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Male 1,083
Link: What Is Sea Level? [Rate Link] - foolishness
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