The Pacific Decadal Oscillation

Until last week I knew that the PDO was an acronym for the Pacific Decadal Oscillation but little else. I now know a little more thanks to the Wikipedia and this very informative article from the North Carolina Climate Office of all places (fig 1). Two data sets I had got a little confused when looking for monthly data to graph the series with. I now realise that there are in fact two versions of PDO series one maintained by the people who discovered the relationship in 1997 called the Mantua PDO, and the other maintained by NOAA known as the NCEI PDO and based on the Matua PDO: “The […]