Tisdale asks: Hey, Where’d The El Niño Go?

Guest post by Bob Tisdale

This post will serve as the mid-September 2012 sea surface temperature anomaly update.

Sea surface temperature anomalies for the NINO3.4 region of the eastern equatorial Pacific are a commonly used index for the strength, frequency and duration of El Niño and La Niña events. In recent weeks, they have cooled to well below the threshold of El Niño conditions. For the evolution of an El Niño that starts from La Niña conditions, that dip is unusual during the satellite era (since November 1981). See Figure 1. Actually, it’s unusual for any El Niño event over the past 30 years.

Figure 1

This does not mean the El Niño this year has come to an end. A dip of similar magnitude did occur once before in the satellite era, and that was during the evolution of the 1991/1992 El Niño. See Figure 2. The dip in 1991, however, may have been in response to the June 15, 1991 eruption of Mount Pinatubo. There have been no explosive volcanic eruptions comparable to Mount Pinatubo this year.  The evolution of the 1991 event is highlighted in purple in Figure 2.

 

Figure 2

MID-MONTH UPDATE

Weekly NINO3.4 sea surface temperature anomalies for the week centered on August 15, 2012 are approximately +0.365 deg C, having dropped from almost +1.0 deg C over the past few weeks.

Figure 3 – Weekly NINO3.4

Global sea surface temperature anomalies are continuing their wiggly upward march, rebounding from La Niña conditions and responding to the evolving El Niño. There is a time lag between the variations in the NINO3.4 data and the response of global sea surface temperature anomalies. It will be interesting to see if they reach 2009/10 levels.

Figure 4 – 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? Satellite-era 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 have been publishing blog posts for the past 3 ½ years that illustrate that fact.

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 Every Wanted to Know about El Niño and La Niña… …Well Just about Everything. The Updated Free Previewincludes the Table of Contents; the Introduction; the beginning of Section 1, with the cartoon-like illustrations; the discussion About the Cover; and the Closing.

Please buy a copy. (Paypal or Credit/Debit Card). It’s only US$8.00.

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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Editor
September 25, 2012 4:51 am

Walter Dnes says:
September 24, 2012 at 11:26 pm
Ric Werme says:
September 24, 2012 at 10:45 am

> I update that automatically on Tuesdays from http://www.bom.gov.au/climate/enso/nino_3.4.txt .
> Currently it’s still showing last Tuesday’s data:
I suppose that’s easier, because it’s a text file, and you can set up a script to read it. NOAA has a website at http://nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh where you can manually type in the NINO34 boundaries and other info, and get a plot, then manually download the ASCII data.

Oh, is that how you get the ENSO data from that site? I was looking for the NINO3.4 link and couldn’t find it, then I looked for pages with text data, and couldn’t find that either. Sounds like a royal pain in the butt.
I think I’ll stick with the BOM….

Editor
September 25, 2012 5:08 am

ENSO meter fans:
Random accurate details:
My crontab entry, minus NCEP comments:

# ...  The BoM source according to a single sample, says things are
# updated on Tuesday at 0015.  Let's do it Tuesday at 7, so I can check before
# work:
00 7 * * 2	$HOME/python/wuwt/enso/enso_fetch.sh

That’s 0700 Eastern US time, currently daylight time, UTC-0400. So updates happen at 1100 UTC. If you Europeans squawk a bit, I might make it earlier.
Today’s update from copious diagnostic output:

Opening http://www.bom.gov.au/climate/enso/nino_3.4.txt
Length of data file 6459, last line:
20120917,20120923,0.50
file_last 20120910,20120916,0.57
Last update 20120923
Enso 3.4 0.50
anomaly +05

The meter graphics are appropriated from NOAA and are 71 different images from elninometer-35.gif to elninometer+35.gif in 0.1° steps. The shell and Python scripts copy elninometer+05.gif to my Comcast area as elninometer-current.gif because WordPress doesn’t do FTP, and that’s what you see.

Editor
September 25, 2012 5:31 am

Walter Dnes says:
September 24, 2012 at 11:26 pm

I manually tweaked the URL to [broken up so people can see it]

http //nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh?
ctlfile=oiv2.ctl&ptype=ts&var=ssta&level=1&op1=none&op2=none&
day=03&month=jan&year=1990&fday=26&fmonth=dec&fyear=2012&
lat0=-5&lat1=5&lon0=-170&lon1=-120&plotsize=800×600&title=&dir=

(I did say it was big). And I change it every year. That URL generates a plot and an ASCII file near the bottom left of the page is a link
“Download data file for -clm.2+(t-273.15) (Text)”
Click on that, and you get the ASCII file. Only problem is that it’s just the values, no date column.

That would be easy enough to scrape. I set year=2010 just to make the data smaller, and the end of the file starting with August is:
0.755576
0.919253
0.681076
0.688078
1.00956
0.88147
0.620162
0.364851
9.999e+20
9.999e+20
9.999e+20
….
Okay, this is different than the BoM data:
20120806,20120812,0.86
20120813,20120819,0.96
20120820,20120826,0.78
20120827,20120902,0.92
20120903,20120909,0.75
20120910,20120916,0.57
20120917,20120923,0.50
Is the NCEP data for one day of each week? Clearly the BoM data is averaged over the previous week.
Given the WUWT “gotta have the latest data” sensibility, I could look into using the NCEP. Do you know the day and time when it’s updated?

Editor
September 25, 2012 8:40 am

Geoff C: Do you have a link to the BOM webpage that excludes the ENSO events before the 1950s? I suspect they may be using HADSST2 data which isn’t infilled but I’d like to take a look.

Editor
September 25, 2012 8:41 am

Geoff C: PS, thanks for buying the book. I’m glad you’re enjoying it.

phlogiston
September 25, 2012 9:40 am

Bob – you describe el Nino as a pool of West Pacific warm water sloshing east. Well – as Tallbloke observed the other day, and as has been clear looking at the WUWT ENSO and ocean reference pages, the west Pacific warm pool has been weakening and has now finally disappeared. East Pacific warm water has also dissipated, now cool water is present on the east side below the surface. So there’s nothing to slosh east. Bill Illis is right I’m sure, its RIP el Nino.
Only the cool west Pacific could maybe inhibit the return to La Nina, so maybe we’re in for a spell of neutrality?

September 25, 2012 11:12 am

@Geoff Sharp: Interesting link. http://tinyurl.com/2dg9u22/?q=node/270. It’s going to be nice of the predictions come true, with Solar Cylce 24 and 25… This SHOULD be inconvenient to the ideologues on the left, who force crippling policies based on an ever heating earth. Just a typo on the link. “para-dime” should be “paradigm.”

D Böehm
September 25, 2012 11:57 am

Jan Perlwitz says:
“What is the ‘CAGW’ theory? Where can I read about it?”
Perlwitz can read about it right here, 24/7/365. But it is neither a theory, nor a hypothesis. It is an evidence-free conjecture without supporting data or observational proof.
Catastrophic AGW is a baseless conjecture pushed by the mendacious, self-serving James “Coal Trains of Death” Hansen. Perlwitz is Hansen’s sycophant, and they both spread disinformation at public expense.

Reply to  D Böehm
September 25, 2012 12:36 pm

You can learn about the Theory of AGW here: It’s a starting point… and there are always biases. But I contend, there are no versions of the truth. This is the theory, mind you. In my mind, I think it’s a failed hypothesis… but I digress.:
http://www.drroyspencer.com/global-warming-101/

September 25, 2012 12:38 pm

PS – AGW, means something very specific. Anthropogenic Global Warming, refers to the part of the global warming (but never ever the global cooling) that man has directly or indirectly contributed

Mac the Knife
September 25, 2012 2:00 pm

Ian W says:
September 25, 2012 at 12:21 am
I think wiggle watching the ENSO 3.4 numbers will get to be a little puzzling for those people who like nice neat causal chains. The PDO has gone cold and we have a quiet sun – neither of these have occurred previously in the ‘satellite era’. Consequently, all these easy rules of thumb may start to become unglued as the chaotic systems involved demonstrate that they are non-linear. We have had a few tens of years of repeated similar cycles now we are likely to see things change in ways that are not forecastable……… We are all on this same ride; I just hope that the temperatures do not drop only Malthusians want the cold.
Ian,
I was thinking similarly. We are participants in a solar linked global event that we have little understanding of… and absolutely no control over.
As a kid (before the satellite era began), I grew up on a Wisconsin farm, where occasional winters can be truly brutal. Feeding, watering, and caring for livestock, constantly plowing driveways and barn accesses, assisting neighbors with snow removal and water/heating issues, and keeping the old farm house furnace stoked with dry firewood at anything below 0F was very hard work. Even our ice skates did not glide as well, at below zero fahrenheit temps!
Cold…. real cold makes everything harder, slower, more expensive, and more hazardous.
MtK

Geoff C
September 25, 2012 2:15 pm

Here’s the BOM link, Bob.
http://www.bom.gov.au/climate/enso/enlist/index.shtml
They say “This page describes a case by case analysis of El Niño events since 1900. Click on the tabs to read about particular years.”
They describe a lot of ‘weak’ events, but there seems to be no El Nino between 1926 and 1940.

DirkH
September 25, 2012 3:13 pm

Jan P Perlwitz says:
September 24, 2012 at 11:27 pm

“D Böehm wrote:
Disregard the climate alarmist Perlwitz, who has his snout planted firmly in the public trough. The sooner that grant-sucking GISS charlatans like Perlwitz are cut off from public funds, the better.
Insults and fantasies about punishment. Obviously, Boehm dreams of a state where only those scientists are funded with money from the public, who say and produce something that is to his politically or ideologically motivated liking.”

James Hansen’s work at GISS enables NASA to siphon off 1.2 billion USD a year from the treasury.
http://notrickszone.com/2012/04/12/nasa-abdalatis-response-to-50-esteemed-professionals-is-managerial-negligence-an-embarrassment/#comment-92515
http://www.whitehouse.gov/sites/default/files/microsites/ostp/FY12-climate-fs.pdf
Mr. Perlwitz, why is it that your work is so expensive? The climate models still have no predictive power. 1.2 bn a year for a failure?

JJ
September 25, 2012 8:58 pm

Jan P Perlwitz says:
OK, I see. The misunderstanding was here on my side.

And there it remains.
Your statement about the model simulations did not refer to climate model simulations on which James Hansen relies (not exclusively, though) for his statements on future global warming, but on the weather prediction simulations of El Nino/La Nina over a time-scale of a year. I apologize.
What are you apologizing for, exactly?
But what is the link between those prediction and what James Hansen allegedly “wants” supposed to be, then?
That is a very good question. Do tell, exaclty what was your buddy Hansen relying on to make this prediction:
“Sometimes it is interesting to make a bet that looks like it is high risk, but really isn’t. Such a bet can be offered at this point. The NOAA web pages giving weekly ENSO updates predict a return to ENSO–neutral conditions by mid–summer with some models suggesting a modest El Nino to follow. We have been checking these forecasts weekly for the past several years, and have noted that the models almost invariably are biased toward weak changes. Based on subsurface ocean temperatures, the way these have progressed the past several months, and comparisons with development of prior El Niños, we believe that the system is moving toward a strong El Niño starting this summer. It’s not a sure bet, but it is probable.”
He explicitly ruled out those … what was it you called them … ” weather prediction simulations of El Nino/La Nina over a time-scale of a year.” He shouldn’t have done that. Though they were spectacularly wrong, they were much closer to correct than he was. They predicted neutral ENSO. He rejected that advice, and went with strong El Nino. Hansen predicts strong warming, who’d a thunk it, huh?
That was 2011. A double dip into a strong La Nina was what we actually got. So, what was Hansen relying on to pull that epic FAIL?
Was it the … what was it you called them …”climate model simulations on which James Hansen relies”? Or was he perhaps being a bit of a loose cannon, making predictions colored by his … you know … personal desires?
What is the “CAGW” theory?
The alleged justification for declaring that us skeptics are guilty of “crimes against humanity” – as per your buddy Hansen. Seems like you guys ought to have some clue as what that is, given that you are prepared to go all Nuremburg on us over it.
“Where can I read about it?”
Right after “Dear Diary,”
The statements about anthropogenically caused global warming …
Dude, don’t forget the Catastrophic part! Your livelihood depends on it! There has got to be a “Death trains” = money trains sampler cross stitched over Hansen’s desk, and for good reason. You can screw up the science all you want, but people won’t keep shoveling billions of dollars down the GISS incinerator chute if you forget to tell the scary stories.
Claim that global warming “has stalled”, “stopped” or similar talking points don’t have any scientific basis.
Interestingly, they have the same scientific basis as Hansen had when he started telling the scary stories. Actually, the scientific basis is a bit stronger for our “talking point” vs Hansen’s 1988 “cook the room” presentation. He only had 8 years of alleged anthropogenic warming (per IPCC donchaknow) when he testilied before Congress. We have more than double that period of dead flat temps now. Funny how your standards are all doubled up like that.
Do you believe there wouldn’t be any record breaking in the years ahead anymore, if El Nino ceased to occur every few years?
Heavens no. When sitting on a temp plateau – as we have been for nearly two decades now – one would expect new “record temps” every so often, just from natural variation. What we dont believe is that when such variability driven “record temps” occur, that you guys will describe them as such. No, we are forced to believe that you will instead try to use those variability driven events to further your pretense that warming is still occurring.
If Hansen wanted such a thing he wouldn’t need El Nino for such record breaking.
True dat! All Hansen needs to get the result he wants is an “adjustment”.
The global temperature anomaly would break positive records in the years and decades ahead again and again anyhow, since global warming continues and is going to continue with further increasing greenhouse gases in the atmosphere that is exactly the behaviour that would be expected (statistically speaking) from variability acting on a trend of zero.
There. Fixed that for ya.
It is the fact that you guys constantly spin even such small things in that manner that causes us to not trust you. We are tired of hearing about “consistent with” the enormous error bands around the model based (“not exclusively though”) predictions projections prognostications that you guys use to fill your pockets with other people’s hard earned money. Get a real job.

Editor
September 25, 2012 9:25 pm

Ric Werme says:
September 25, 2012 at 5:31 am
> Is the NCEP data for one day of each week? Clearly the BoM data is averaged over the previous week.
The site at http://nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh says it’s for the week, centred on Wednesday.
> Given the WUWT “gotta have the latest data” sensibility, I could look into using the NCEP.
> Do you know the day and time when it’s updated?
It seems to show up Monday by around 11:00 Eastern, maybe a bit earlier.

Steve Keohane
September 27, 2012 7:58 am

JJ says:September 25, 2012 at 8:58 pm
predictions projections prognostications

perhaps more at ‘prestidigitation’?

Editor
September 27, 2012 4:33 pm

Geoff C: Sorry for the delay getting back to you. From the webpage you linked there’s no indication what sea surface temperature dataset they’re using as reference. Since it stops abruptly at 1950, I would assume it’s NOAA’s ONI. NOAA just didn’t bother to extend it back in time. I did using their format and HADISST data. See:
http://bobtisdale.wordpress.com/2010/11/30/long-term-oni-like-table-of-el-nino-and-la-nina-events/
There are a number of sea surface temperature reconstructions. But as you got back in time there are fewer observations and more infilled data. The following graph shows the NINO3.4 sea surface temperature anomalies from 3 different datasets:
http://i46.tinypic.com/10g9nx2.jpg
And here’s the average of the 3:
http://i47.tinypic.com/29defww.jpg
There are papers that say the strength of the early El Niño events have been underestimated.

Editor
October 6, 2012 5:07 pm

Ric Werme says:
September 25, 2012 at 5:31 am

Walter Dnes says:
September 24, 2012 at 11:26 pm
I manually tweaked the URL to [broken up so people can see it]
http //nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh?
ctlfile=oiv2.ctl&ptype=ts&var=ssta&level=1&op1=none&op2=none&
day=03&month=jan&year=1990&fday=26&fmonth=dec&fyear=2012&
lat0=-5&lat1=5&lon0=-170&lon1=-120&plotsize=800×600&title=&dir=
(I did say it was big). And I change it every year. That URL generates a plot and an ASCII file near the bottom left of the page is a link
“Download data file for -clm.2+(t-273.15) (Text)”
Click on that, and you get the ASCII file. Only problem is that it’s just the values, no date column.
That would be easy enough to scrape.

Just in case someone actually reads this – I changed my scripts and crontab entry so I’m now getting data from nomad3. That’s why the enso meter dropped to +0.3, or will once caches expire.

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