Study: U.S. climate closely follows Pacific ocean cycle known as the PDO

Watts Up With That?

The Effects of the Pacific Decadal Oscillation and Atlantic Multidecadal Oscillation on U.S. Regional Weather

A climate researcher at Cornell University, Remy Mermelstein has written an interesting and provocative paper showing the linkage between the Pacific Decal Oscillation (PDO) and the climate swings in the United States on a region by region basis. The results of the study can be summed up in one graph: (click to enlarge)

Abstract

This paper aims to identify and discuss the sensible weather trends in each of the ten climate regions of the U.S. affected by the natural oscillations representing the Pacific Decadal Oscillation (PDO) and the Atlantic Multi-Decadal Oscillation (AMO). By finding the correlations between the natural oscillations and the sensible weather, we can create composites and learn about their tendencies to better aid in forecasting the weather. The importance of the different modes of each oscillation has been found to vary among…

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