Western North America
The forcing of the Pacific decadal oscillation
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2005. The forcing of the Pacific decadal oscillation. Journal of Climate. 18:4355-4373.
Cool-season precipitation in the southwestern USA since AD 1000: Comparison of linear and nonlinear techniques for reconstruction
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2002. Cool-season precipitation in the southwestern USA since AD 1000: Comparison of linear and nonlinear techniques for reconstruction. International Journal of Climatology. 22:1645-1662.