Sea Level Rises?

Author
Discussion

mildmannered

1,231 posts

155 months

Wednesday 12th October 2011
quotequote all
Before, it was science against various oppressive religious regimes.

Now we have Politics muddying the water for every one concerned.

Somewhere amongst all of this is the truth (as we understand it today)

As laymen, we have make a best guess based on the evidence we are filtered.

Oh, not a bad idea to use a bit of common sense too!

Composite Guru

2,254 posts

205 months

Wednesday 12th October 2011
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Eric Mc said:
So, between 25,000 and 10,000 years ago it rose dramatically but in more recent times,(the last few thousands of years) it has continued to rise but at a much lower rate.

Thats because everyone was driving around in V8's back then polluting the environment.

Melvin Udall

73,668 posts

257 months

Wednesday 12th October 2011
quotequote all
Composite Guru said:
Eric Mc said:
So, between 25,000 and 10,000 years ago it rose dramatically but in more recent times,(the last few thousands of years) it has continued to rise but at a much lower rate.

Thats because everyone was driving around in V8's back then polluting the environment.
As well as primitive man driving V8's, it may also be because all the ice in the temperate zones melted, and the stuff further north took longer, or was too cold to melt?

anonymous-user

56 months

Wednesday 12th October 2011
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Eric Mc said:
How do they distingusih between coastlines which are sinking, due to crustal movement, and actual waters rising.

Eric Mc

Original Poster:

122,301 posts

267 months

Wednesday 12th October 2011
quotequote all
Must be a very smart measuring tape then.

Melvin Udall

73,668 posts

257 months

Wednesday 12th October 2011
quotequote all
Eric Mc said:
Must be a very smart measuring tape then.
It's yellow, it must be.

Presumably they take references from several things. The rest of the continental plates, sea level all over the worl, etc, and they can determine what is rising, what is falling, and what the sea is doing.

Eric Mc

Original Poster:

122,301 posts

267 months

Wednesday 12th October 2011
quotequote all
I wonder can they pinpoint all the individual factors affecting all the individual coastlines all over the world?

Stevenj214

4,941 posts

230 months

Wednesday 12th October 2011
quotequote all
Melvin Udall said:
Been raising since the mid 1800's. Sorry about the sideways graph.



Edited by Melvin Udall on Wednesday 12th October 08:35
This graph says it's been dropping until the 1940's.

Nuclearsquash

1,329 posts

264 months

Wednesday 12th October 2011
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It's a bit like a hockey stick wink

blueg33

36,444 posts

226 months

Wednesday 12th October 2011
quotequote all
Melvin Udall said:
It's yellow, it must be.

Presumably they take references from several things. The rest of the continental plates, sea level all over the worl, etc, and they can determine what is rising, what is falling, and what the sea is doing.
Its done by satellite these days, you can measure the inclination of tectonic plates and landmasses in much the same way as your GPS can measure your height above sea level.

Sea levels change mainly through changes in the global ice mass. The rise has continued since the last iceage, but prior to that sea levels were very much higher, for example the raise beach at Portland is over 100 ft above current sea level.

Melvin Udall

73,668 posts

257 months

Wednesday 12th October 2011
quotequote all
Stevenj214 said:
This graph says it's been dropping until the 1940's.
That's on a short scale. On the much larger scales, those small rises, and falls mean diddly.

andy-xr

13,204 posts

206 months

Wednesday 12th October 2011
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Happens daily, locals call it tidescominin, nothing to worry about

Melvin Udall

73,668 posts

257 months

Wednesday 12th October 2011
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andy-xr said:
Happens daily, locals call it tidescominin, nothing to worry about
Despite working at sea for many, many years, I still can't get my head around how different poets can have different tidal ranges when they aren't that far apart. (unless I have that all mistakenlywrongun or something)

Oakey

27,619 posts

218 months

Wednesday 12th October 2011
quotequote all
Melvin Udall said:
Despite working at sea for many, many years, I still can't get my head around how different poets can have different tidal ranges when they aren't that far apart. (unless I have that all mistakenlywrongun or something)
I wandered lonely as a wave....?


hehe

hidetheelephants

25,262 posts

195 months

Wednesday 12th October 2011
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Melvin Udall said:
Despite working at sea for many, many years, I still can't get my head around how different poets can have different tidal ranges when they aren't that far apart. (unless I have that all mistakenlywrongun or something)
Lumps under the water getting in the way mostly.

Melvin Udall

73,668 posts

257 months

Wednesday 12th October 2011
quotequote all
Oakey said:
I wandered lonely as a wave....?


hehe
Damnit. I blame everything except my own shoddy proofreading skills.

thinfourth2

32,414 posts

206 months

Wednesday 12th October 2011
quotequote all
As some one who lives 120meters above sea level exactly when should i start panicing about the sea rushing in as an unrelenting mass towards my house at 5mm year.

I think halfway would be a good time to panic

So i shall panic sell my house in 12000years time, you'd better act fast if you want a bargain.


Diderot

7,425 posts

194 months

Wednesday 12th October 2011
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Sea level is lowest for a decade.

Digga

40,478 posts

285 months

Wednesday 12th October 2011
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Diderot said:
Sea level is lowest for a decade.
Are you taking your measurements at low tide? biggrin

BoRED S2upid

19,793 posts

242 months

Wednesday 12th October 2011
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thinfourth2 said:
As some one who lives 120meters above sea level exactly when should i start panicing about the sea rushing in as an unrelenting mass towards my house at 5mm year.

I think halfway would be a good time to panic

So i shall panic sell my house in 12000years time, you'd better act fast if you want a bargain.
Same here im a couple hundred ft above sea level.

So all these fancy pants graphs tell us that anyone living above a couple of meters above sea level will have thousands of years until they are under water if its increasing at mm's per year. We wont be around to worry about it so who cares?