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Detection of human influence on twentieth-century precipitation trends

Author

Listed:
  • Xuebin Zhang

    (Environment Canada, Toronto, Ontario M3H 5T4, Canada)

  • Francis W. Zwiers

    (Environment Canada, Toronto, Ontario M3H 5T4, Canada)

  • Gabriele C. Hegerl

    (Nicholas School for the Environment and Earth Sciences, Box 90227, Duke University, Durham, North Carolina 27708, USA)

  • F. Hugo Lambert

    (507 McCone Hall, University of California, Berkeley, California 94720, USA)

  • Nathan P. Gillett

    (Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK)

  • Susan Solomon

    (NOAA Earth System Research Laboratory, 325 Broadway, Boulder, Colorado 80305, USA)

  • Peter A. Stott

    (Met Office Hadley Centre (Reading Unit), Meteorology Building, University of Reading, Reading RG6 6BB, UK)

  • Toru Nozawa

    (National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan)

Abstract

The day the rains came We have left our mark on the climate: surface air temperature, sea level pressure, free atmospheric temperature and ocean temperature have all changed during the past century as a result of human activities. Climate models suggest that human activity may have also caused changes in precipitation on a global scale, but no evidence had been found to support the prediction. Now it has. A comparison of observed changes in precipitation over land during the twentieth century with climate simulations points to a detectable influence on the latitudinal patterns of precipitation. Anthropogenic factors contributed to moistening in Northern Hemisphere mid-latitudes, but elsewhere, for instance in the Northern Hemisphere tropics, the effect was drying.

Suggested Citation

  • Xuebin Zhang & Francis W. Zwiers & Gabriele C. Hegerl & F. Hugo Lambert & Nathan P. Gillett & Susan Solomon & Peter A. Stott & Toru Nozawa, 2007. "Detection of human influence on twentieth-century precipitation trends," Nature, Nature, vol. 448(7152), pages 461-465, July.
    • Handle: RePEc:nat:nature:v:448:y:2007:i:7152:d:10.1038_nature06025
    DOI: 10.1038/nature06025
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