12
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Rapid coupling between ice volume and polar temperature over the past 150,000 years.

      Nature

      Animals, Antarctic Regions, Anthozoa, Climate, Climate Change, history, statistics & numerical data, Feedback, Foraminifera, isolation & purification, Geologic Sediments, analysis, Greenland, History, Ancient, Ice Cover, chemistry, Indian Ocean, Mediterranean Sea, Plankton, Seawater, Temperature, Time Factors

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Current global warming necessitates a detailed understanding of the relationships between climate and global ice volume. Highly resolved and continuous sea-level records are essential for quantifying ice-volume changes. However, an unbiased study of the timing of past ice-volume changes, relative to polar climate change, has so far been impossible because available sea-level records either were dated by using orbital tuning or ice-core timescales, or were discontinuous in time. Here we present an independent dating of a continuous, high-resolution sea-level record in millennial-scale detail throughout the past 150,000 years. We find that the timing of ice-volume fluctuations agrees well with that of variations in Antarctic climate and especially Greenland climate. Amplitudes of ice-volume fluctuations more closely match Antarctic (rather than Greenland) climate changes. Polar climate and ice-volume changes, and their rates of change, are found to covary within centennial response times. Finally, rates of sea-level rise reached at least 1.2 m per century during all major episodes of ice-volume reduction.

          Related collections

          Author and article information

          Journal
          23151478
          10.1038/nature11593

          Comments

          Comment on this article