Tag Archives: pacific decadal oscillation

On Hartmann and Wendler 2005 “The Significance of the 1976 Pacific Climate Shift in the Climatology of Alaska.”

Posted on May 14, 2013 by

Note: this is a companion article for the story: The Guardian’s Suzanne Goldenberg takes a fossil fueled trip to a remote Alaskan village to tell us recent global warming caused it to sink – but that’s not the cause   … Continue reading →

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Posted in Arctic, PDO, Sea Surface Temperature | Tagged , , , , , , , | 16 Comments

The Shifts Hypothesis – an alternative view of global climate change

Posted on April 26, 2013 by

Guest post by Pavel Belolipetsky The IPCC, Bob Tisdale and others have presented hypotheses to explain 20th century warming. This article presents another. My co-workers and I call it the “Shifts” hypothesis. And we consider it to have advantages over … Continue reading →

Posted in PDO | Tagged , , | 148 Comments

Study: natural variation still rules monsoons

Posted on March 21, 2013 by

From the University of Hawaii ‑ SOEST Natural climate swings contribute more to increased monsoon rainfall than global warming Natural swings in the climate have significantly intensified Northern Hemisphere monsoon rainfall, showing that these swings must be taken into account … Continue reading →

Posted in ENSO, Oceans | Tagged , , , , | 20 Comments

Coralline Algae and the Case for Natural Climate Change

Posted on January 28, 2013 by

Guest post by Jim Steele Director Sierra Nevada Field Campus, emeritus, San Francisco State University There was a very revealing 2012 paper demonstrating the power and interconnections of natural ocean oscillations, “Marine proxy evidence linking decadal North Pacific and Atlantic … Continue reading →

Posted in PDO | Tagged , , , , , , , | 64 Comments

Why El Niño and not the AMO?

Posted on January 17, 2013 by

Guest Post by Willis Eschenbach On another thread, a poster got me thinking about the common practice of using the El Nino 3.4 Index to remove some of the variability from the historical global average surface temperature record. The theory, … Continue reading →

Posted in AMO, ENSO | Tagged , , , , , , , | 154 Comments

Cooling in the near future?

Posted on November 19, 2012 by

Global Cooling – Climate and Weather Forecasting. Guest post by Dr. Norman Page Introduction. Over the last 10 years or so as new data have accumulated the general trend and likely future course of  climate change has become reasonably clear. The earth … Continue reading →

Posted in Forecasting, PDO | Tagged , , , | 177 Comments

Muscheler retracts? Offers a NEW excuse for why solar activity can’t be responsible for post-70′s warming

Posted on October 19, 2012 by

Guest post by Alec Rawls Technically Dr. Muscheler is asking me to retract the title of my post, “Raimund Muscheler says that a steady high level of forcing can’t cause warming“: I am sure that you are aware of the fact … Continue reading →

Posted in PDO, Solar | Tagged , , , , , | 170 Comments

Linking the ENSO and PDO induced rainfall of the Pacific Northwest to proxy data in tree rings and lake sediments

Posted on July 5, 2012 by

From Penn State , another Mann paper with proxy sets, and a divergence problem. At least they are talking about the MWP, or as they call it, the Medieval Climate Anomaly which had been erased in previous papers Mann had … Continue reading →

Posted in Climate data, Paleoclimatology, PDO | Tagged , , , , , , , , | 147 Comments

Tisdale on the Curious Northern Hemisphere Sea Surface Temperature Anomaly Patterns

Posted on July 3, 2012 by

Guest post by Bob Tisdale This post will serve as the Preliminary Sea Surface Temperature Anomaly Update for June 2012, since we’ll be using preliminary June 2012 data in it. Last week ended on June 30th, so the preliminary data … Continue reading →

Posted in ENSO, PDO | Tagged , , , , , , , | 62 Comments

Weekly Climate and Energy News Roundup

Posted on June 24, 2012 by

Brought to You by SEPP (www.SEPP.org) The Science and Environmental Policy Project ################################################### Quote of the Week: This is the way the world ends This is the way the world ends This is the way the world ends Not with … Continue reading →

Posted in Climate News Roundup | Tagged , , , , , , , | 7 Comments

Bastardi’s reply to Tom Yulsman’s article on cherry picking

Posted on March 25, 2012 by

[Note: I don't agree with everything Joe has said here 100%, but I provide his comment in full edited for punctuation and format and turning image links into images to further the discussion. - Anthony] Guest post by Joe Bastardi … Continue reading →

Posted in heat wave, Opinion | Tagged , , , , , , , | 140 Comments

German skeptics Lüning and Vahrenholt respond to criticism

Posted on February 13, 2012 by

Foreword: Dr Sebastian Lüning and Prof. Fritz Vahrenholt, authors of a new controversial skeptic book now hitting German bookstores, have asked me to post their response to comments made by climate scientist Georg Feulner of the Potsdam Institute for Climate … Continue reading →

Posted in Cosmic rays, Opinion | Tagged , , , , , , , , , , | 201 Comments

Sense and Sensitivity II – the sequel

Posted on January 15, 2012 by

By Christopher Monckton of Brenchley Joel Shore, who has been questioning my climate-sensitivity calculations, just as a good skeptic should, has kindly provided at my request a reference to a paper by Dr. Andrew Lacis and others at the Goddard … Continue reading →

Posted in Climate sensitivity, Modeling | Tagged , , , , , , , | 206 Comments

The November AMO index goes negative, first time since 1996

Posted on December 9, 2011 by

Joe D’Aleo reports via email that the Atlantic Multidecadal Oscillation (AMO) Index has gone negative for this past month, see the graph below: Source:http://www.esrl.noaa.gov/psd/data/correlation/amon.us.data This is the first time the November value has been negative since about 1996. It appears … Continue reading →

Posted in AMO | Tagged , , , , , , , | 157 Comments

Why is 20 years statistically significant when 10 years is not?

Posted on November 5, 2011 by

Guest post by James Padgett Many of you are aware that the concept of continental drift, proposed by Alfred Wegener, was widely ridiculed by his contemporaries. This reaction was in spite of the very clear visual evidence that the continents … Continue reading →

Posted in Climate data | Tagged , , | 200 Comments

Yet Even More Discussions About The Pacific Decadal Oscillation (PDO)

Posted on June 30, 2011 by

Guest post by Bob Tisdale INTRODUCTION I’ve written numerous posts that describe the Pacific Decadal Oscillation (PDO), what the PDO represents, and, just as important, what it does not represent. For those new to the PDO and for those needing … Continue reading →

Posted in PDO | Tagged , | 100 Comments

On The AMO+PDO Dataset

Posted on June 8, 2011 by

Bob Tisdale suggests that the way some folks have combined the PDO and AMO datasets t produce a new curve is wrong, and here is his supporting analysis. – Anthony Guest post by Bob Tisdale Including A Discussion Of Its … Continue reading →

Posted in Climate data, Sea Surface Temperature | Tagged , | 58 Comments

According to the best-sited stations, the diurnal temperature range in the lower 48 states has no century-scale trend.

Posted on May 19, 2011 by

It seems that a number of folks have missed one of the more important conclusions from our first paper on the surfacestations project. Co-author Dr. John Nielsen-Gammon has some things to say about it the finding that is the title. … Continue reading →

Posted in Climate data, Weather_stations | Tagged , | 67 Comments

Nenana 2011 Ice Classic result

Posted on May 7, 2011 by

In case you missed it, the official result for 2011 is in: The Tanana River officially broke up on May 4, 2011 at 4:24 PM and here’s the clock Here’s the context of the date in comparison with all of … Continue reading →

Posted in Oceans, PDO | Tagged , , , | 28 Comments

Stockwell asks: Is the Atmosphere Still Warming?

Posted on April 13, 2011 by

Guest post by Dr. David Stockwell I suspect that the only really convincing evidence against global warming is a sustained period of no global warming or cooling — climate sensitivity and feedbacks are too esoteric. I have followed the recent … Continue reading →

Posted in ENSO, PDO | Tagged , , | 98 Comments