Category Archives: PDO

AMO+PDO= temperature variation – one graph says it all

Posted on September 30, 2010 by

Joe D’Aleo and Don Easterbrook have produced a new paper for SPPI. This graph of US Mean temperature versus the AMO and PDO ocean cycles is prominently featured: I particularly liked the regression forecast fit: About these ads

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Posted in AMO, Climate data, Oceans, PDO | 143 Comments

Ocean cooling contributed to mid-20th century global warming hiatus (and so did the PDO)

Posted on September 22, 2010 by

NOTE: As is typical these days, and in keeping with co-author Phil Jones tradition of not giving up anything, the publicly funded scientific paper is not included with the news, and is hidden behind a paywall. All we can get … Continue reading →

Posted in Oceans, PDO | 192 Comments

The North Pacific & Solar Cycle Change

Posted on September 4, 2010 by

Guest post by Paul Vaughan, M.Sc. Awhile back I drew attention to temporal patterns shared by the <i>rate of change</i> of solar cycle length (SCL’) and the Atlantic Multidecadal Oscillation (AMO). (See here.) Correspondence I received later alerted me to … Continue reading →

Posted in PDO, Sea Surface Temperature | 100 Comments

Connecting ENSO, PDV, and the North and South Pacific

Posted on October 16, 2009 by

A new paper in Geophysical Research Letters was brought to my attention by Dr. Leif  Svalgaard. Tropical origins of North and South Pacific decadal variability by Jeremy D. Shakun and Jeffrey Shaman makes some very interesting findings suggesting that both … Continue reading →

Posted in ENSO, Oceans, PDO | 67 Comments

California Wildfires caused by cooler Pacific, La Niña

Posted on September 3, 2009 by

California’s Fires Result of a Cooling Pacific, Two Years of La Niña and Environmental Mismanagement Guest Post By Joseph D’Aleo, CCM, ICECAP While environmentalists and clueless politicans like CA Representative Linda Sanchez and not surprisingly Climate Progress’ Joe Romm sought … Continue reading →

Posted in ENSO, Oceans, PDO | 85 Comments

Study: Ocean net heat flow is connected with climate shifts – CO2 not correlated – no “warming in the pipeline”

Posted on August 17, 2009 by

Related to this story: The Pacific Decadal Oscillation Time Series from the University of Washington, seen below. Emphasis points mine. h/t to WUWT reader Richard Heg. – Anthony Monthly Values for the PDO Index, January 1900 to September 2008. Positive … Continue reading →

Posted in Oceans, PDO | 112 Comments

Ocean heat content and Earth’s radiation imbalance

Posted on August 11, 2009 by

This paper is to be published on-line on Friday in Physics Letters A Dr. Douglas graciously sent me an advance copy, of which I’m printing some excerpts. Douglas and Knox show some correlations between Top-of-atmosphere radiation imbalance and the Pacific … Continue reading →

Posted in Climate_change, Earth, PDO, Science | 436 Comments

La Niña fading, El Niño may soon return

Posted on May 13, 2009 by

Source: http://www.osdpd.noaa.gov/PSB/EPS/SST/data/anomnight.5.11.2009.gif Bill Illis writes in comments: The newest Ocean SST map shows the La Nina conditions have gone away and we are in slightly positive ENSO conditions. Also interesting is that the negative PDO seems to be moving back … Continue reading →

Posted in ENSO, Oceans, PDO | 113 Comments

PDO — ENSO, Aleutian Low, or some of each?

Posted on May 12, 2009 by

PDO — ENSO, Aleutian Low, or some of each? Guest Post by Basil Copeland Introduction In a recent post here at WUWT, as well as on his own blog, Bob Tisdale challenged the popular view that the Pacific Decadal Oscillation … Continue reading →

Posted in ENSO, Oceans, PDO | 61 Comments

Misunderstandings about the Pacific Decadal Oscillation

Posted on April 28, 2009 by

Misunderstandings about the Pacific Decadal Oscillation Guest post by Bob Tisdale INITIAL NOTE The first version of this post (The Common Misunderstanding About The PDO dated June 26, 2008) incorrectly described the method for calculating the Atlantic Multidecadal Oscillation. I … Continue reading →

Posted in ENSO, Oceans, PDO | 115 Comments

The 1998 Super El Niño: possibly a “rogue wave”?

Posted on April 5, 2009 by

In comments on WUWT, people often think freely and throw out all sorts of ideas. Like in any collection of people, some are bad, some are average, a few are good, and even fewer are noteworthy. However, one that was … Continue reading →

Posted in Earth, ENSO, Oceans, PDO, Science | 148 Comments

Fear and Loathing For California

Posted on February 5, 2009 by

Guest post by Steven Goddard On the same day when President Obama and Prime Minister Brown separately warned of imminent economic catastrophe, the new US Energy Secretary Dr. Steven Chu issued a different catastrophe warning.   The LA Times quoted him saying ““I … Continue reading →

Posted in ENSO, PDO, Weather | 304 Comments

Looking more like La Nina every day

Posted on January 1, 2009 by

Click for larger image Source:  http://www.osdpd.noaa.gov/PSB/EPS/SST/climo.html h/t Arthur Glass About a month ago I posted: La Nina is back…and was criticized by a few folks. Well compare the above to the image from that post below:

Posted in PDO | 136 Comments

Don Easterbrook’s AGU paper on potential global cooling

Posted on December 29, 2008 by

Don sent me his AGU paper for publication and discussion here on WUWT, and I’m happy to oblige – Anthony Abstracts of American Geophysical Union annual meeting, San Francisco  Dec., 2008 Solar Influence on Recurring Global, Decadal, Climate Cycles Recorded … Continue reading →

Posted in Climate_change, PDO, Science | 140 Comments

JPL says: FORGET LA NINA: OSCILLATION RULES AS THE PACIFIC COOLS

Posted on December 10, 2008 by

While I said a couple of days a go that “La Nina is back” it appears I mistook a strong PDO cool signature for the La Nina signature. As JPL’s Patzert says in the article below “This multi-year Pacific Decadal … Continue reading →

Posted in Climate_change, PDO, Science, Sea level | 94 Comments