Tag Archives: pacific decadal oscillation

A New Feature of the Pacific Decadal Oscillation?

Posted on January 24, 2014 by gymnosperm

We learn about things in mundane ways. Our conception of the Pacific Decadal Oscillation (PDO) began with fish. Salmon are absolutely delicious. Tough handed people venture into dangerous conditions to catch them for us. It became apparent to the tough … Continue reading →

Posted in California Drought, Climate, Geography, San Francisco Rainfall | Tagged | 3 Comments

Loose Fire Hose and the Aborted Nino

Posted on January 26, 2013 by gymnosperm

The Antarctic vortex is a whirling dervish that extends from the stratosphere to the deep ocean. Inside the steep gradients that drive this circulation everything is reflected inward and contained. Outside the dervish everything that contacts it receives angular momentum. … Continue reading →

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Deeper Doo Doo for Dendrochronology

Posted on February 20, 2012 by gymnosperm

Indices of the Pacific Decadal Oscillation are in close agreement for the period of the last seventy years. The NASA Multivariate Index and the Mantua Index only go back a hundred or so and they correlate very closely. These shorter … Continue reading →

Posted in Climate, Climate Change, Geography, Oceanography, Paleoclimate, Paleogeography | Tagged , , , , , , | 3 Comments

Viejo indeed! When the big dog stirrs…

Posted on January 29, 2012 by gymnosperm

El Viejo, (the old one) is an alternative name developing for the La Niña phase of the El Nino Southern Oscillation, ENSO. Much has been written on the impact of ENSO on global temperature, and many are coming to understand the importance of … Continue reading →

Posted in Climate, Climate Change, Geography, Global Warming, Oceanography | Tagged , , , , , , , | 1 Comment

And so goes PDO…

Posted on January 22, 2012 by gymnosperm

The first thing one notices is that this historical index shows the Pacific Oscillation to be far more medicentennial than decadal. This bears some further work for this wonderful index:  Shen, C., et al. 2006. Pacific   Decadal Oscillation Reconstruction. IGBP … Continue reading →

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