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|a Antarctic temperature and global sea level closely coupled over the past five glacial cycles |h [electronic resource]. |
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|a [S.l.] : |b Macmillan Publishers Limited, |c 2009-06-21. |
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|a Nature Geoscience Volume 2 |b Letters. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Ice cores from Antarctica record temperature and atmospheric
carbon dioxide variations over the past six glacial cycles1,2.
Yet concomitant records of sea-level fluctuations—needed to
reveal rates and magnitudes of ice-volume change that provide
context to projections for the future3–9—remain elusive.
Reconstructions indicate fast rates of sea-level rise up to
5 cm yr -1 during glacial terminations10, and 1–2 cm yr -1 during
interglacials11,12 and within the past glacial cycle13. However,
little is known about the total long-term sea-level rise in
equilibration to warming. Here we present a sea-level record
for the past 520,000 years based on stable oxygen isotope
analyses of planktonic foraminifera and bulk sediments from
the Red Sea. Our record reveals a strong correlation on multimillennial
timescales between global sea level and Antarctic
temperature1, which is related to global temperature6,7. On
the basis of this correlation, we estimate sea level for the
Middle Pliocene epoch (3.0–3.5 Myr ago)—a period with nearmodern
CO2 levels—at 25 [plus or minus] 5m above present, which is
validated by independent sea-level data6,14–16. Our results imply
that even stabilization at today’s CO2 levels may cause sealevel
rise over several millennia that by far exceeds existing
long-term projections. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|t Antarctic temperature and global sea level closely coupled over the past five glacial cycles |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15061800/00001 |y Click here for full text |
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|3 Host material |u http://www.nature.com/ngeo/journal/v2/n7/pdf/ngeo557.pdf |y Antarctic temperature and global sea level closely coupled over the past five glacial cycles |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/18/00/00001/FI15061800_thm.jpg |
