Mid-April 2013 Sea Surface Temperature Anomaly Update

Note: I’ve extended the weekly data back to 2001. I simply wanted to illustrate how “flat” global sea surface temperatures have been since the end of the 1998-01 La Niña. I’m not sure if I’m going to leave those graphs with the 2001 start or go back to my normal start year of 2004. Suggestions?

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 April 17, 2013, they’re at about -0.02 deg C, basically zero. That is, there aren’t El Niño or La Niña conditions.

Weekly NINO3.4

Weekly NINO3.4

Global sea surface temperatures are at +0.25 deg C for the week centered on April 17th. As noted in earlier updates, a global sea surface temperature anomaly of +0.2 deg C appears to have become the “new normal”. Other than the rises and falls in response to El Niño and La Niña events, it doesn’t look as though they’ve wandered very far from that value over the past 11-plus years.

Weekly Global

Weekly Global

INTERESTED IN LEARNING MORE ABOUT THE EL NIÑO AND LA NIÑA AND THEIR LONG-TERM EFFECTS ON GLOBAL SEA SURFACE TEMPERATURES?

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 4 years, and I’ve searched ocean heat content records for more than 3 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.)

I’ve recently 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.

VIDEOS

For those who’d like a more detailed preview of Who Turned on the Heat?, see Parts 1 and 2 of the video series The Natural Warming of the Global Oceans.

SOURCES

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

http://nomad1.ncep.noaa.gov/cgi-bin/pdisp_sst.sh

or:

http://nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh?lite=

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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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20 Responses to Mid-April 2013 Sea Surface Temperature Anomaly Update

  1. Jim says:

    Having them as far back as they are reasonably reliable makes the display more useful with respect to the ideas you present. If you could get to show the 1998 El Nino surge that would also be meaningful…

  2. Bob Tisdale says:

    Jim: I’ve been considering adding the weekly East Pacific and Atlantic-Indian-West Pacific subsets. The upward shift is blatantly obvious in the weekly data:

    Regards

  3. I followed the weekly Reynolds Ol.v2 SST data (from your second link above) for over 2 years, in their graph option, and the data does not look like your second graph above–it shows an obvious, one might say metronomic, seasonal variation (upward through the winter, downward through spring, up through summer and down through autumn), quite unlike your second graph. I wonder if your second graph is limited to latitudes 5S-5N, like your first, El Nino graph (and if it is, why call it global)?

  4. Bob Tisdale says:

    harrydhuffman (@harrydhuffman): I can assure you that I’m presenting global sea surface temperature anomaly data (90S-90N) in the second graph.

    Your description, “…it shows an obvious, one might say metronomic, seasonal variation (upward through the winter, downward through spring, up through summer and down through autumn)…” sounds like sea surface temperatures (not anomalies). Here’s the global sea surface temperature output from the NOAA NOMADS website:

    And here’s their global sea surface temperature anomalies output, which I presented above from 2001 to present:

    Regards

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