Mid-December 2013 Sea Surface Temperature (SST) Anomaly Update

Global sea surface temperature anomalies are at about +0.19 deg C for the week centered on December 18th, compared to the base years of 1971-2000.

Weekly Global SSTa

Weekly Global

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 Wednesday December 20, 2013, they were at about +0.02 deg C, basically zero.  They are in ENSO-neutral conditions, meaning the tropical Pacific is not experiencing El Niño or La Niña conditions.

Weekly NINO3.4 SSTa

Weekly NINO3.4


Why should you be interested?  Sea surface temperature records indicate El Niño and La Niña events are responsible for the warming of global sea surface temperature anomalies over the past 30 years, not manmade greenhouse gases.  I’ve searched sea surface temperature records for more than 5 years now, and I’ve searched ocean heat content records for more than 4 years, and I can find no evidence of an anthropogenic greenhouse gas signal.  That is, the data indicates the warming of the global oceans has been caused by Mother Nature, not anthropogenic greenhouse gases.

For a further discussion, see the essay (pdf) titled The Manmade Global Warming Challenge. (It’s 42MB, but it’s free and worth the download time.)

Last year, I published my e-book (pdf) about the phenomena called El Niño and La Niña.  It’s titled Who Turned on the Heat? with the subtitle The Unsuspected Global Warming Culprit, El Niño Southern Oscillation.  It is intended for persons (with or without technical backgrounds) interested in learning about El Niño and La Niña events and in understanding the natural causes of the warming of our global oceans for the past 30 years.  Because land surface air temperatures simply exaggerate the natural warming of the global oceans over annual and multidecadal time periods, the vast majority of the warming taking place on land is natural as well.  The book is the product of years of research of the satellite-era sea surface temperature data that’s available to the public via the internet.  It presents how the data accounts for its warming—and there are no indications the warming was caused by manmade greenhouse gases.  None at all.

Who Turned on the Heat? was introduced in the blog post Everything You Ever Wanted to Know about El Niño and La Niña… …Well Just about Everything. The Updated Free Preview includes the Table of Contents; the Introduction; the beginning of Section 1, with the cartoon-like illustrations; the discussion About the Cover; and the Closing.  The book was updated recently to correct a few typos.

Please buy a copy. (Credit/Debit Card through PayPal.  You do NOT need to open a PayPal account.) Simply scroll down to the “Don’t Have a PayPal Account” purchase option.  It’s only US$8.00.


The Sea Surface Temperature anomaly data used in this post is available through the NOAA NOMADS website:




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.
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5 Responses to Mid-December 2013 Sea Surface Temperature (SST) Anomaly Update

  1. Dan Pangburn says:

    The net effect of all ocean oscillations, named or not, causes the average global temperature to oscillate above and below the temperature trend calculated from the time integral of sunspot numbers.
    Natural climate change has been hiding in plain sight. Simple equation calculates temperatures since before 1900 with 90% accuracy (95% correlation) and reasonable estimates since 1610. http://agwunveiled.blogspot.com/. CO2 change had no significant influence. The average global temperature trend is down.

  2. nevket240 says:

    I hope you enjoyed Christmas and all the best for 2014.
    This short vid was sent to me as part of a subscription, I hope you learn something, hahaha.

  3. Hi Bob,
    I trust you and family had a Happy Christmas.

    I am off topic and on the ask again.

    Further to my earlier request, could you also include in your post on SST anomalies for the major oceans, the graphs and decadal trends for NET downward longwave radiation over the major oceans, with the same ‘break point’, say 1981 to 2000 & 2001 to 2013, overall or for each ocean.
    If there is no difference in the pre/post 2000 downward LWR trends that is fine.

    I have in mind something like Fig. 9-6 in “Climate Models Fail”, but subtracting the changes in upward LWR from the changes in downward LWR to arrive at a net change in LWR at the surface, if the data is available.

    I am interested to find out whether all the major oceans show a similar decadal trend increase in net downward LWR over the last 3 or 4 decades, which would indicate that the decadal trend increase in net downward LWR is attributable to the increase in atmospheric carbon dioxide.

    I assume there will be no correlation between the decadal trends for SST and net downward LWR for the major oceans.

    Thanking you in anticipation.

    Best Wishes for a prosperous 2014.


  4. Bob Tisdale says:

    Laurie, I don’t want to appear rude with my reply, but the information you’re looking for is well outside of my normal areas of research, so I would not feel comfortable presenting something I was not familiar with. I suspect you’ll discover that it’s available only as a reanalysis, which, of course is not data. Then, I suspect that you’ll find that there aren’t land masks so that the oceans could be isolated. Sorry to say, but I believe I’ll have to pass on that part of your requests.


  5. Hi Bob,
    Thanks for getting back to me.
    I suspected data might be an issue.
    The decadal trend change in net surface LWR was a ‘nice to have’, so I will still be very grateful if you can find the time to extend your research and do a post wrt my original request.

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