Abstract:Recent severe droughts, extreme floods, and increasing differences between seasonal high and low flows on the Amazon River may represent a 21st century increase in the amplitude of the hydrologic cycle over the Amazon Basin. These precipitation and streamflow changes may have arisen from natural ocean-atmospheric variability, deforestation within the drainage basin of the Amazon River, or from anthropogenic climate change. Tree-ring reconstructions of wet season precipitation extremes, substantiated with histo… Show more
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