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| Titel |
Sea level ~400 000 years ago (MIS 11): analogue for present and future sea-level? |
| VerfasserIn |
D. Q. Bowen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 6, no. 1 ; Nr. 6, no. 1 (2010-01-19), S.19-29 |
| Datensatznummer |
250003322
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| Publikation (Nr.) |
 copernicus.org/cp-6-19-2010.pdf |
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| Zusammenfassung |
| Comparison of the sea-level today with that of 400 000 years ago
(MIS 11), when the Earth's orbital characteristics were similar may
provide, under conditions of natural variability, indications of
future sea-level during the present interglacial. Then, as now,
orbital eccentricity was low and precession dampened. Evidence for
MIS 11 sea-level occurs on uplifting coastlines where shorelines
with geochronological ages have been preserved. The sea-level term
and the uplift term may be separated with an "uplift correction"
formula. This discovers the original sea-level at which the now
uplifted shoreline was fashioned. Estimates are based on average
uplift rates of the "last interglacial" sea-level (MIS 5.5) using
a range of estimates for sea-level and age at that time at different
locations. These, with varying secular tectonic regimes in different
ocean basins, provide a band of estimates for the MIS 11 sea-level.
They do not support the hypothesis of an MIS 11 sea-level at
~20 m, and instead show that it was closer to its present
level. |
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