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  1. No Access

    Article

    Climatic and volcanic forcing of tropical belt northern boundary over the past 800 years

    The position of the northern boundary of the tropical belt affects the hydroclimate of many arid and semi-arid regions in the Northern Hemisphere. Widening of the tropical belt since the 1970s has largely been...

    R. Alfaro-Sánchez, H. Nguyen, S. Klesse, A. Hudson, S. Belmecheri… in Nature Geoscience (2018)

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    Article

    Multiproxy summer and winter surface air temperature field reconstructions for southern South America covering the past centuries

    We statistically reconstruct austral summer (winter) surface air temperature fields back to ad 900 (1706) using 22 (20) annually resolved predictors from natural and human archives from southern South America (SS...

    R. Neukom, J. Luterbacher, R. Villalba, M. Küttel, D. Frank… in Climate Dynamics (2011)

  3. No Access

    Article

    Tree-ring estimates of Pacific decadal climate variability

     Decadal-scale oscillatory modes of atmosphere-ocean variability have recently been identified in instrumental studies of the Pacific sector. The regime shift around 1976 is one example of such a fluctuation, ...

    R. D'Arrigo, R. Villalba, G. Wiles in Climate Dynamics (2001)

  4. No Access

    Article

    Trans-Tasman Sea climate variability since ad 1740 inferred from middle to high latitude tree-ring data

    The limited length and spatial coverage of instrumental climate data for many areas of the Southern Hemisphere impedes the study of atmosphere-ocean dynamics prior to the past century. Such analyses are impor...

    R. D'Arrigo, E. Cook, R. Villalba, B. Buckley, J. Salinger, J. Palmer… in Climate Dynamics (2000)

  5. No Access

    Article

    Tree-ring records from New Zealand: long-term context for recent warming trend

     Distinct periods of warmth have been identified in instrumental records for New Zealand and the surrounding southwest Pacific over the past 120 years. Whether this warming is due to natural climate variabilit...

    R. D. D’Arrigo, E. R. Cook, M. J. Salinger, J. Palmer, P. J. Krusic… in Climate Dynamics (1998)

  6. No Access

    Article

    Sea-level pressure variability around Antarctica since A.D. 1750 inferred from subantarctic tree-ring records

     A tree-ring chronology network recently developed from the subantarctic forests provides an opportunity to study long-term climatic variability at higher latitudes in the Southern Hemisphere. Fifty long (1911...

    R. Villalba, E. R. Cook, R. D. D’Arrigo, G. C. Jacoby, P. D. Jones… in Climate Dynamics (1997)

  7. No Access

    Article

    Aluminum-Bearing Goethite in Venezuelan Laterites

    The presence of Al-bearing goethites has been unequivocally established in Venezuelan laterite sediments by means of infrared spectroscopy (IR), chemical dissolution, and X-ray powder diffraction (XRD) methods...

    E. Mendelovici, Sh. Yariv, R. Villalba in Clays and Clay Minerals (1979)