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Showing 1–5 of 5 results
Advanced filters: Author: Spruce W. Schoenemann Clear advanced filters

  • Whether changes in atmospheric circulation over West Antarctica during the past few decades are part of a longer-term trend is unclear. Ice cores reveal a significant increase in the oxygen isotopes from precipitation over the past 50 years, but the anomaly cannot be distinguished from natural climate variability.

    • Eric J. Steig
    • Qinghua Ding
    • Elena Korotkikh
    Research
    Nature Geoscience
    Volume: 6, P: 372-375

  • Traditional precipitation isotope archives (e.g., ice cores) are fundamental to our knowledge of past climate but limited to glaciated locales. Here the authors show that pore ice in relict permafrost holds equal promise as a proxy and use it to provide insights on the Holocene summer climate history of northwestern Canada.

    • Trevor J. Porter
    • Spruce W. Schoenemann
    • Duane G. Froese
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-10

  • Abrupt glacial climate changes were slowly communicated between hemispheres by oceanic heat transport. Ice core data point to more rapid atmospheric teleconnections linking the North Atlantic, tropics, and southern storm track.

    • Bradley R. Markle
    • Eric J. Steig
    • Todd Sowers
    Research
    Nature Geoscience
    Volume: 10, P: 36-40

  • A new ice core from West Antarctica shows that, during the last ice age, abrupt Northern Hemisphere climate variations were followed two centuries later by a response in Antarctica, suggesting an oceanic propagation of the climate signal to the Southern Hemisphere high latitudes.

    • Christo Buizert
    • Betty Adrian
    • Thomas E. Woodruff
    Research
    Nature
    Volume: 520, P: 661-665

  • An annually resolved ice-core record from West Antarctica indicates that warming driven by local insolation resulting from sea-ice decline began in that region about 2,000 years before warming in East Antarctica, reconciling two alternative explanations for deglacial warming in the Southern Hemisphere.

    • T. J. Fudge
    • Eric J. Steig
    • Gifford J. Wong
    Research
    Nature
    Volume: 500, P: 440-444