Category Archives: Climate

Reblogg

Posted on March 14, 2012 by gymnosperm

I’d actually written this as a reply on Dr. Roy Spencer’s Blog but there seemed some sort of enfarction and the beauty of having your own is I can just post it here… “And I still think a photon emitted … 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

Not to change the subject or anything…

Posted on February 17, 2012 by gymnosperm

But I walked into the paint store the other day carrying a can of the paint I had bought there sometime within the last decade to paint my truck and was informed that the no longer carry that kind of paint. They further … Continue reading →

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Picturesque

Posted on February 12, 2012 by gymnosperm

So if the oceanic circulation looks like this: And the resulting 2500m (deep) ocean age looks tile this:  Then what does this mean? Why should a PDO index that basically describes which side of the Pacific Ocean the ancient deep water … Continue reading →

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Of Carbon and Sodium

Posted on January 30, 2012 by gymnosperm

Carbon is really starting to remind me of Sodium. Not that Sodium gets my hands dirty or greasy or anything. Most people have never even seen Sodium, it’s really weird stuff. But just a few years back everyone was getting … Continue reading →

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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

528 years of PDO, the long skinny one.

Posted on January 23, 2012 by gymnosperm

        Quite a bit lost in the upload but here is the complete Shen Index plotted on three graphs and cobbed together (Excel tops out at 255 per series). Most of the time the index has been … Continue reading →

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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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Without data, there is only religion

Posted on January 22, 2012 by gymnosperm

Well here it is, finally, after hours of optical character recognition to extract the data from : Null, Jan, “A Climatology of San Francisco rainfall, 1849-1991”  (1992). Master’s  Theses. Paper  490. http://scholarworks.sjsu.edu/etd_theses/490 data that should be readily available through the publicly … Continue reading →

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Data follies continue

Posted on January 16, 2012 by gymnosperm

During the gold rush in 1849 a couple of doctors and an interesting character, a surveyor/glass blower/instrument maker, began taking rainfall measurements in San Francisco. They sold this data to local newspapers and an almanac. In 1871 the army signal … Continue reading →

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