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The Days Are Getting Longer

Started bySam Wormley <swormley1@gmail.com>
First post2015-12-15 20:37 -0600
Last post2015-12-16 12:15 -0600
Articles 5 — 4 participants

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  The Days Are Getting Longer Sam Wormley <swormley1@gmail.com> - 2015-12-15 20:37 -0600
    Re: The Days Are Getting Longer jimp@specsol.spam.sux.com - 2015-12-16 03:47 +0000
    Re: The Days Are Getting Longer Wally W. <ww84wa@aim.com> - 2015-12-16 07:47 -0500
    Re: The Days Are Getting Longer "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-12-16 10:14 -0800
      Re: The Days Are Getting Longer Sam Wormley <swormley1@gmail.com> - 2015-12-16 12:15 -0600

#539507 — The Days Are Getting Longer

FromSam Wormley <swormley1@gmail.com>
Date2015-12-15 20:37 -0600
SubjectThe Days Are Getting Longer
Message-ID<wIednR6iCOj9U-3LnZ2dnUU7-X-dnZ2d@giganews.com>
The Days Are Getting Longer
> http://www.reportingclimatescience.com/news-stories/article/the-days-are-getting-longer.html


> Abstract
>
> In 2002, Munk defined an important enigma of 20th century global mean
> sea-level (GMSL) rise that has yet to be resolved. First, he listed
> three canonical observations related to Earth’s rotation [(i) the
> slowing of Earth’s rotation rate over the last three millennia
> inferred from ancient eclipse observations, and changes in the (ii)
> amplitude and (iii) orientation of Earth’s rotation vector over the
> last century estimated from geodetic and astronomic measurements] and
> argued that they could all be fit by a model of ongoing glacial
> isostatic adjustment (GIA) associated with the last ice age. Second,
> he demonstrated that prevailing estimates of the 20th century GMSL
> rise (~1.5 to 2.0 mm/year), after correction for the maximum signal
> from ocean thermal expansion, implied mass flux from ice sheets and
> glaciers at a level that would grossly misfit the residual
> GIA-corrected observations of Earth’s rotation. We demonstrate that
> the combination of lower estimates of the 20th century GMSL rise (up
> to 1990) improved modeling of the GIA process and that the correction
> of the eclipse record for a signal due to angular momentum exchange
> between the fluid outer core and the mantle reconciles all three
> Earth rotation observations. This resolution adds confidence to
> recent estimates of individual contributions to 20th century
> sea-level change and to projections of GMSL rise to the end of the
> 21st century based on them.
>
> Citation
>
> Reconciling past changes in Earth’s rotation with 20th century global
> sea-level rise: Resolving Munk’s enigma by Jerry X. Mitrovica,
> Carling C. Hay, Eric Morrow, Robert E. Kopp, Mathieu Dumberry4,5 and
> Sabine Stanley published in Science Advances, DOI:
> 10.1126/sciadv.1500679



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sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

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#539526

Fromjimp@specsol.spam.sux.com
Date2015-12-16 03:47 +0000
Message-ID<df37kc-drp.ln1@mail.specsol.com>
In reply to#539507
Sam Wormley <swormley1@gmail.com> wrote:
> The Days Are Getting Longer
>> http://www.reportingclimatescience.com/news-stories/article/the-days-are-getting-longer.html
> 
> 
>> Abstract
>>
>> In 2002, Munk defined an important enigma of 20th century global mean
>> sea-level (GMSL) rise that has yet to be resolved. First, he listed
>> three canonical observations related to Earth?s rotation [(i) the
>> slowing of Earth?s rotation rate over the last three millennia
>> inferred from ancient eclipse observations, and changes in the (ii)
>> amplitude and (iii) orientation of Earth?s rotation vector over the
>> last century estimated from geodetic and astronomic measurements] and
>> argued that they could all be fit by a model of ongoing glacial
>> isostatic adjustment (GIA) associated with the last ice age. Second,
>> he demonstrated that prevailing estimates of the 20th century GMSL
>> rise (~1.5 to 2.0 mm/year), after correction for the maximum signal
>> from ocean thermal expansion, implied mass flux from ice sheets and
>> glaciers at a level that would grossly misfit the residual
>> GIA-corrected observations of Earth?s rotation. We demonstrate that
>> the combination of lower estimates of the 20th century GMSL rise (up
>> to 1990) improved modeling of the GIA process and that the correction
>> of the eclipse record for a signal due to angular momentum exchange
>> between the fluid outer core and the mantle reconciles all three
>> Earth rotation observations. This resolution adds confidence to
>> recent estimates of individual contributions to 20th century
>> sea-level change and to projections of GMSL rise to the end of the
>> 21st century based on them.
>>
>> Citation
>>
>> Reconciling past changes in Earth?s rotation with 20th century global
>> sea-level rise: Resolving Munk?s enigma by Jerry X. Mitrovica,
>> Carling C. Hay, Eric Morrow, Robert E. Kopp, Mathieu Dumberry4,5 and
>> Sabine Stanley published in Science Advances, DOI:
>> 10.1126/sciadv.1500679
 

No shit? 

-- 
Jim Pennino

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#539572

FromWally W. <ww84wa@aim.com>
Date2015-12-16 07:47 -0500
Message-ID<uan27bddvh4o9je4d6dkjp0dv6mgtie8an@4ax.com>
In reply to#539507
On Tue, 15 Dec 2015 20:37:20 -0600, Sam Wormley wrote:

>The Days Are Getting Longer

... and "It's worse than we thought."

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#539619

From"reber g=emc^2" <herbertglazier0@gmail.com>
Date2015-12-16 10:14 -0800
Message-ID<8c3f9bee-4179-4c88-9a02-8882c001d516@googlegroups.com>
In reply to#539507
On Tuesday, December 15, 2015 at 6:37:25 PM UTC-8, Sam Wormley wrote:
> The Days Are Getting Longer
> > http://www.reportingclimatescience.com/news-stories/article/the-days-are-getting-longer.html
> 
> 
> > Abstract
> >
> > In 2002, Munk defined an important enigma of 20th century global mean
> > sea-level (GMSL) rise that has yet to be resolved. First, he listed
> > three canonical observations related to Earth's rotation [(i) the
> > slowing of Earth's rotation rate over the last three millennia
> > inferred from ancient eclipse observations, and changes in the (ii)
> > amplitude and (iii) orientation of Earth's rotation vector over the
> > last century estimated from geodetic and astronomic measurements] and
> > argued that they could all be fit by a model of ongoing glacial
> > isostatic adjustment (GIA) associated with the last ice age. Second,
> > he demonstrated that prevailing estimates of the 20th century GMSL
> > rise (~1.5 to 2.0 mm/year), after correction for the maximum signal
> > from ocean thermal expansion, implied mass flux from ice sheets and
> > glaciers at a level that would grossly misfit the residual
> > GIA-corrected observations of Earth's rotation. We demonstrate that
> > the combination of lower estimates of the 20th century GMSL rise (up
> > to 1990) improved modeling of the GIA process and that the correction
> > of the eclipse record for a signal due to angular momentum exchange
> > between the fluid outer core and the mantle reconciles all three
> > Earth rotation observations. This resolution adds confidence to
> > recent estimates of individual contributions to 20th century
> > sea-level change and to projections of GMSL rise to the end of the
> > 21st century based on them.
> >
> > Citation
> >
> > Reconciling past changes in Earth's rotation with 20th century global
> > sea-level rise: Resolving Munk's enigma by Jerry X. Mitrovica,
> > Carling C. Hay, Eric Morrow, Robert E. Kopp, Mathieu Dumberry4,5 and
> > Sabine Stanley published in Science Advances, DOI:
> > 10.1126/sciadv.1500679
> 
> 
> 
> -- 
> 
> sci.physics is an unmoderated newsgroup dedicated
> to the discussion of physics, news from the physics
> community, and physics-related social issues.

Slower rotation means more heat Think Venus  TreBert

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#539621

FromSam Wormley <swormley1@gmail.com>
Date2015-12-16 12:15 -0600
Message-ID<etqdnYtwM-zbN-zLnZ2dnUU7-K2dnZ2d@giganews.com>
In reply to#539619
On 12/16/15 12:14 PM, reber g=emc^2 wrote:
> Slower rotation means more heat Think Venus  TreBert


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-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

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