Author Archives: Bob Tisdale

About Bob Tisdale

Research interest: the long-term aftereffects of El Niño and La Nina events on global sea surface temperature and ocean heat content. Author of the ebook Who Turned on the Heat? and regular contributor at WattsUpWithThat.

Mid-May 2013 Sea Surface Temperature Anomaly Update

The sea surface temperature anomalies of the NINO3.4 region in the equatorial Pacific (5S-5N, 170W-120W) are a commonly used metric for the frequency, strength and duration of El Niño and La Niña events. For the week centered on May 15, 2013, … Continue reading

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Hurricane Main Development Region Sea Surface Temperatures & Anomalies – Plus a Couple of Other Regions

OVERVIEW This post presents the annual cycle in sea surface temperatures for the hurricane main development region in the North Atlantic.  It also presents the sea surface temperature anomalies for three regions: (1) the Main Development Region, (2) the Gulf … Continue reading

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Washington Post Headline: “Worlds fish have been moving to cooler waters for decades, study finds”

This is an addition to the post Fishy Temperature Proxy by Anthony Watts. INTRODUCTION A new paper about fish migration patterns from 1970 to 2006 is getting some attention by the press. My Figure 1 is Figure 2 from Cheung … Continue reading

Posted in CAGW Proponent Arguments, SST Dataset Info | 1 Comment

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

This post was first posted at WattsUpWithThat here a few days ago. HHHHHHHH This post presents a number of problems the 2005 Hartmann and Wendler paper “The Significance of the 1976 Pacific Climate Shift in the Climatology of Alaska.” These … Continue reading

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Multidecadal Variations and Sea Surface Temperature Reconstructions

UPDATE:  I’ve added a link at the end of the post for those interested in a copy of it in .pdf format. ########### OVERVIEW This is a somewhat lengthy blog post. There’s lots of information for newcomers, and there are … Continue reading

Posted in Atlantic Multidecadal Oscillation, CAGW Proponent Arguments, El Nino-La Nina Processes, PDO, SST Dataset Info | 3 Comments

Introduction to the Hadley Centre’s HadCRUH Specific Humidity Dataset

Note: After initially posting this, I rearranged the text and Figure 1 to reduce the space on the front page. ##### UPDATE: I’ve added an animation to the end of the post.  It illustrates the changes in specific humidity anomalies in response to  the 1997/98 … Continue reading

Posted in El Nino-La Nina Processes, Specific Humidity HadCRUH | 3 Comments

Even More about Trenberth’s Missing Heat – An Eye Opening Comment by Roger Pielke Sr.

Roger Pielke Sr. was quoted in David Appell’s recent article Whither global warming?  Has global warming slowed down? over at the Yale Forum on Climate Change & The Media. That portion of the article reads: About 90 percent of this … Continue reading

Posted in Ocean Heat Content Problems | 2 Comments

April 2013 Sea Surface Temperature (SST) Anomaly Update

MONTHLY SST ANOMALY MAP The following is a Global map of Reynolds OI.v2 Sea Surface Temperature (SST) anomalies for April 2013. It was downloaded from the NOMADS website. The contour levels are set at 0.5 deg C, and white is … Continue reading

Posted in SST Update | 8 Comments

SkepticalScience Still Misunderstands or Misrepresents the El Niño-Southern Oscillation (ENSO)

The author of the recent SkepticalScience post Distinguishing Between Short-Term Variability and Long-Term Trends, Dana Nuccitelli, still misunderstands or misrepresents El Niño and La Niña processes.  Either way, he’s missed something. The instrument temperature record indicates that La Niñas and El Niños serve … Continue reading

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Open Letter to the WMO

Dear WMO: Thanks for furnishing the lovely graph of global temperature anomalies in your WMO Statement on Status of the Global Climate in 2012. I’ve reproduced it here. The caption for it reads: Figure 4. January–December global land and ocean … Continue reading

Posted in CAGW Proponent Arguments, WMO | 2 Comments