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  • IOP Science  (1)
  • University of Arizona Libraries  (1)
  • 1
    Publication Date: 2022-05-25
    Description: © The Author(s), 2015. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Environmental Research Letters 10 (2015): 074010, doi:10.1088/1748-9326/10/7/074010.
    Description: Spatially extensive and persistent drought episodes have repeatedly influenced human history, including the 'Strange Parallels' drought event in monsoon Asia during the mid-18th century. Here we explore the dynamics of sustained monsoon failure using observed and tree-ring reconstructed drought patterns and a 1300-year pre-industrial community earth system model control run. Both modern observational and climate model drought patterns during years with extremely weakened South Asian monsoon resemble those reconstructed for the Strange Parallels drought. Model analysis reveals that this pattern arises during boreal spring over Southeast Asia, with decreased precipitation and moisture flux, while related summertime climate anomalies are confined to the Indian subcontinent. Years with simulated South Asian drying exhibit canonical El Niño conditions over the Pacific and associated shifts in the Walker circulation. In contrast, multi-year drought periods, resembling those sustained during the Strange Parallels drought, feature anomalous Pacific warming around the dateline, typical of El Niño Modoki events.
    Description: This work was performed with support and funding from the Significant Opportunities in Atmospheric Research and Sciences Program (NSF AGS-1120459), WHOI Academic Programs Office Funds, and NSF AGS-1338734, AGS-1203704, and AGS-1304245.
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 2
    Publication Date: 2022-05-26
    Description: © Arizona Board of Regents, 2014. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Radiocarbon 56, no. 4 (2014): S61-S68, doi:10.2458/azu_rc.56.18321.
    Description: Also published in Tree-Ring Research, 70. no. 3 (2014): S61-S68, doi:10.3959/1536-1098-70.3.61
    Description: Dendroclimatology in the Eastern Mediterranean (EM) region has made important contributions to the understanding of climate variability on timescales of decades to centuries. These contributions, beginning in the mid-20th century, have value for resource management, archaeology, and climatology. A gradually expanding tree-ring network developed by the first author over the past 15 years has been the framework for some of the most important recent advances in EM dendroclimatology. The network, now consisting of 79 sites, has been widely applied in large-scale climatic reconstruction and in helping to identify drivers of climatic variation on regional to global spatial scales. This article reviews EM dendroclimatology and highlights contributions on the national and international scale.
    Description: Funding was provided by the US National Science Foundation (NSF) under grants from the Earth System History (ESH) and Paleo Perspectives on Climate Change (P2C2) programs, AGS- 0075956, AGS-0758486, and AGS-1103314.
    Keywords: Dendroclimatology ; Eastern Mediterranean ; Tree-ring growth ; Reconstruction ; Drought
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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