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Insolation-driven changes in atmospheric circulation over the past 116,000 years in subtropical Brazil

Author

Listed:
  • Francisco W. Cruz

    (University of Massachusetts
    Universidade de São Paulo)

  • Stephen J. Burns

    (University of Massachusetts)

  • Ivo Karmann

    (Universidade de São Paulo)

  • Warren D. Sharp

    (Berkeley Geochronology Center)

  • Mathias Vuille

    (University of Massachusetts)

  • Andrea O. Cardoso

    (Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo)

  • José A. Ferrari

    (Instituto Geológico)

  • Pedro L. Silva Dias

    (Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo)

  • Oduvaldo Viana

    (Universidade de São Paulo)

Abstract

Climate: viewed from the south Our view of Earth's climate during the last glacial period is somewhat ‘Northern-Hemisphere-centric’, with an emphasis on high latitudes. This is understandable given the remarkable harvest of data from the region. These data point to a highly unstable climate, characterized by slow cooling and abrupt warming, and this has become the template for climate during that time. But we know very little about whether low-latitude Southern Hemisphere climate was similarly unstable: new data unearthed by Cruz et al. suggest that it was not. A 116,000-year oxygen isotope record of a well dated stalagmite from southern Brazil reveals that the main driving forces for Southern Hemisphere climate variation are changes in seasonal availability of sunlight due to precession of Earth's orbit. Millennial-scale climate change is less evident than in the Northern Hemisphere.

Suggested Citation

  • Francisco W. Cruz & Stephen J. Burns & Ivo Karmann & Warren D. Sharp & Mathias Vuille & Andrea O. Cardoso & José A. Ferrari & Pedro L. Silva Dias & Oduvaldo Viana, 2005. "Insolation-driven changes in atmospheric circulation over the past 116,000 years in subtropical Brazil," Nature, Nature, vol. 434(7029), pages 63-66, March.
    • Handle: RePEc:nat:nature:v:434:y:2005:i:7029:d:10.1038_nature03365
    DOI: 10.1038/nature03365
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    Cited by:

    1. Fu-Qiang Huang & Jian-Zhou Wei & Xin Song & Yong-Hong Zhang & Qi-Feng Yang & Yakov Kuzyakov & Feng-Min Li, 2021. "δ 2 H and δ 18 O in Precipitation and Water Vapor Disentangle Seasonal Wind Directions on the Loess Plateau," Sustainability, MDPI, vol. 13(12), pages 1-15, June.

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