Interglacial and future sea level
نویسندگان
چکیده
منابع مشابه
Rapid sea-level fall and deep-ocean temperature change since the last interglacial period
We have dated Huon Peninsula, Papua New Guinea and Barbados corals that formed at times since the Last Interglacial Period, applying both 230Th and 231Pa dating techniques as a test of age accuracy. We show that Marine Isotope Stage (MIS) 5e ended prior to 113.18 0.7 kyr, when sea level was 319 m. During MIS 5b sea level was 357 m at 92.68 0.5 kyr, having dropped about 40 m in approximately 10 ...
متن کاملEstimates of Future Sea Level Rise
Accurate monitoring of atmospheric carbon dioxide began 25 years ago. Since then, sufficient scientific evidence has been developed for two National Academy of Sciences review panels to conclude that sometime in the next century, atmospheric concentrations of C02 will almost certainly double and raise the atmosphere's mean surface temperature by at least 1.5C (2.7 F) and possibly as much as 4.5...
متن کاملGlobal and Local Sea Level During the Last Interglacial: A Probabilistic Assessment
The Last Interglacial (LIG) stage (ca. 130 115 ka), with polar temperatures likely 3 5◦C warmer than today, serves as a partial analogue for low-end future warming scenarios. Multiple indicators suggest that LIG global sea level (GSL) was higher than at present; based upon a small set of local sea level indicators, the Intergovernmental Panel on Climate Change (IPCC)'s Fourth Assessment Report ...
متن کاملInformation to “ Probabilistic assessment of sea level during the Last Interglacial ”
Nature of the indicators and depositional ranges. The sea level indicators take a variety of forms, including: constructional coral terraces that provide both geomorphological and ecological information; coral biofacies in limestones that provide ecological but not geomorphological information; erosional features such as wave-cut terraces, sea caves, bioerosional notches, and raised beaches; an...
متن کاملDetection of a dynamic topography signal in last interglacial sea-level records
Estimating minimum ice volume during the last interglacial based on local sea-level indicators requires that these indicators are corrected for processes that alter local sea level relative to the global average. Although glacial isostatic adjustment is generally accounted for, global scale dynamic changes in topography driven by convective mantle flow are generally not considered. We use numer...
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ژورنال
عنوان ژورنال: Nature
سال: 2009
ISSN: 0028-0836,1476-4687
DOI: 10.1038/462856a