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Science Forum Index » Geology - Meteorology Forum » Is sea level changing?...
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| Rodney Blackall... |
 Posted: Fri Jul 11, 2008 4:19 pm |
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Guest
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There is currently some dispute about changes in sea level in
sci.geo.meteorology.
By a happy coincidence I have today received my copy of 'La Météorology' Nr
61. On page 32, in the paper on 'Le Gulf Stream et le climat' there is a
graph showing sea-level changes 1993-2007 made up of two elements.
(1) change due to warming of the oceans = 1.9 mm/year
(2) change due to influx = 1.4 mm/year
Total = 3.3 mm/year as measured by Topex/Poseidon and Jason 1
A recent article in 'New Scientist' points out that a sudden addition to the
North Atlantic from Greenland might well take 50 years to affect the Indian
Ocean because of the velocity of the currents near the southern end of
Africa.
Happy arguing
--
Rodney Blackall (retired meteorologist)(BSc, FRMetS, MRI)
Buckingham, ENGLAND
Using Acorn SA-RPC, OS 4.02 with ANT INS and Pluto 3.03j |
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| Weatherlawyer... |
| Posted: Fri Jul 11, 2008 4:19 pm |
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On Jul 11, 10:19 pm, Rodney Blackall <rblack... at (no spam) rodsrisc.demon.co.uk>
wrote:
Quote: There is currently some dispute about changes in sea level in
sci.geo.meteorology.
By a happy coincidence I have today received my copy of 'La Météorology' Nr
61. On page 32, in the paper on 'Le Gulf Stream et le climat' there is a
graph showing sea-level changes 1993-2007 made up of two elements.
(1) change due to warming of the oceans = 1.9 mm/year
(2) change due to influx = 1.4 mm/year
Total = 3.3 mm/year as measured by Topex/Poseidon and Jason 1
A recent article in 'New Scientist' points out that a sudden addition to the
North Atlantic from Greenland might well take 50 years to affect the Indian
Ocean because of the velocity of the currents near the southern end of
Africa.
Happy arguing
About what?
Always assuming the dynamics are correct, how much is measured from
stations subducting under a plate of lunch or something?
We know, from watching BBC programmes 10 years ago, that mountains can
rise quite quickly when it suits them. And from various other TV
programmes, various Roman and Greek columns have had a dip in the sea
when it didn't.
What makes you thing UK.sci.weather is a better forum for the
discussion? |
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| N_Cook... |
| Posted: Fri Jul 11, 2008 4:54 pm |
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Rodney Blackall <rblackall at (no spam) rodsrisc.demon.co.uk> wrote in message
news:4fbd6612a7rblackall at (no spam) rodsrisc.demon.co.uk...
Quote: There is currently some dispute about changes in sea level in
sci.geo.meteorology.
By a happy coincidence I have today received my copy of 'La Météorology'
Nr
61. On page 32, in the paper on 'Le Gulf Stream et le climat' there is a
graph showing sea-level changes 1993-2007 made up of two elements.
(1) change due to warming of the oceans = 1.9 mm/year
(2) change due to influx = 1.4 mm/year
Total = 3.3 mm/year as measured by Topex/Poseidon and Jason 1
A recent article in 'New Scientist' points out that a sudden addition to
the
North Atlantic from Greenland might well take 50 years to affect the
Indian
Ocean because of the velocity of the currents near the southern end of
Africa.
Happy arguing
--
Rodney Blackall (retired meteorologist)(BSc, FRMetS, MRI)
Buckingham, ENGLAND
Using Acorn SA-RPC, OS 4.02 with ANT INS and Pluto 3.03j
From BODC data
http://www.bodc.ac.uk/products/bodc_products/ntslf/
for Lerwick , between 1957 and 1999
mean sea level has only risen 30 mm relative to the rising land there.
But for Portsmouth between 1962 and 2002 then sea level
relative to presumably sinking Portsmouth then 170mm rise.
Some other factors the IOW area is sinking at the
rate of about 0.6mm per year due to recovery from
the last ice age.
--
General electronic repairs, most things repaired, other than TVs and PCs
http://www.divdev.fsnet.co.uk/repairs.htm
Diverse Devices, Southampton, England |
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| jim beam... |
| Posted: Fri Jul 11, 2008 5:52 pm |
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Yes ,in my back garden.
Jim
"Rodney Blackall" <rblackall at (no spam) rodsrisc.demon.co.uk> wrote in message
news:4fbd6612a7rblackall at (no spam) rodsrisc.demon.co.uk...
Quote: There is currently some dispute about changes in sea level in
sci.geo.meteorology.
By a happy coincidence I have today received my copy of 'La Météorology'
Nr
61. On page 32, in the paper on 'Le Gulf Stream et le climat' there is a
graph showing sea-level changes 1993-2007 made up of two elements.
(1) change due to warming of the oceans = 1.9 mm/year
(2) change due to influx = 1.4 mm/year
Total = 3.3 mm/year as measured by Topex/Poseidon and Jason 1
A recent article in 'New Scientist' points out that a sudden addition to
the
North Atlantic from Greenland might well take 50 years to affect the
Indian
Ocean because of the velocity of the currents near the southern end of
Africa.
Happy arguing
--
Rodney Blackall (retired meteorologist)(BSc, FRMetS, MRI)
Buckingham, ENGLAND
Using Acorn SA-RPC, OS 4.02 with ANT INS and Pluto 3.03j
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