PRELIMINARY November 2011 SST Anomaly Update

STANDARD OPENING PARAGRAPH

The November 2011 Reynolds OI.v2 Sea Surface Temperature (SST) data through the NOAA NOMADS website won’t be official until Monday, December 5th. Refer to the schedule on the NOAA Optimum Interpolation Sea Surface Temperature Analysis Frequently Asked Questionswebpage. The following are the preliminary Global and NINO3.4 SST anomalies for November 2011 that the NOMADS website prepares based on incomplete data for the month. I’ve also included the weekly data through November 23, 2011, but I’ve shortened the span of the weekly data, starting it in January 2004, so that the variations can be seen.

PRELIMINARY MONTHLY DATA

Based on the preliminary data, Monthly NINO3.4 SST anomalies are at -0.88 deg C, which is still well within the range of a weak La Niña, and we’ve only got a month or two before we reach the normal peak months for ENSO.

Monthly NINO3.4 SST Anomalies

######################

The preliminary global SST anomaly is +0.100 deg C, and that’s a drop of about 0.011 deg C since last month.

Monthly Global SST Anomalies

######################

WEEKLY DATA

The weekly NINO3.4 SST anomalies for the week centered on November 23, 2011 have not changed considerably over the past few weeks.. They are presently at -0.93 deg C, within the range of a moderate La Niña.

Weekly NINO3.4 SST Anomalies

######################

Weekly Global SST Anomalies have dropped again recently, working their way down toward their seasonal low in response to the La Niña. They are presently at +0.050 deg C.

Weekly Global SST Anomalies

######################

SOURCES

SST anomaly data 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=

Advertisements

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.
This entry was posted in SST Update. Bookmark the permalink.

9 Responses to PRELIMINARY November 2011 SST Anomaly Update

  1. Hello Bob,

    31/10/2011
    Niño 3.4 -1.1º (-0,4ºC)

    07/11/2011
    Niño 3.4 -0.9ºC (+0,2ºC)

    14/11/2011
    Niño 3.4 -0.8ºC (+0,1ºC)

    21/11/2011
    Niño 3.4 -0.9ºC (-0,1ºC)

    em 28/11/2011
    Niño 3.4 -0.9ºC (0,0ºC)

    But, to a situation “stationary” for Niño 3.4. I see significant changes to the PDO; Note that the change in amonalias is derived from the situation in ENSO.

    Perhaps a unique position to observe changes in PDO, with Niño3.4 “constant”

    [image]http://i44.tinypic.com/23tksn7.gif[/image]

  2. Bill Illis says:

    Thanks Bob,

    Ocean Heat Content from the NODC has been updated. Large rise in the newest numbers.

  3. Bob Tisdale says:

    Bill Illis: I should be posting about the OHC update later this week or early next week. As you’re well aware, we normally expect a La Nina to increase OHC, but, curiously, this La Nina has not caused an upswing in the tropical Pacific OHC.

  4. Pingback: Sea surface temperatures still in decline… | pindanpost

  5. Philip Bradley says:

    curiously, this La Nina has not caused an upswing in the tropical Pacific OHC.

    What is cause and what is effect is often unclear with the climate.

    A La Nina should cause increasing (tropical Pacific) OHC, except to the extent a La Nina is caused by decreasing OHC.

  6. Pingback: Scary cooling in the south… | pindanpost

  7. Bob Tisdale says:

    Philip Bradley says: “What is cause and what is effect is often unclear with the climate.” And you continued, “A La Nina should cause increasing (tropical Pacific) OHC, except to the extent a La Nina is caused by decreasing OHC.”

    During a La Nina event, the increase in tropical Pacific OHC results from the decrease in cloud cover, and corresponding increase in downward shortwave radiation, which both result from the increased trade wind strength attributable to the La Nina.

  8. earthdog says:

    Mr. Tisdale,

    Off topic, but I can’t see any way to message you otherwise. What program are you using to make your graphs? Gnuplot or similar?

  9. Bob Tisdale says:

    earthdog: I use EXCEL.

    Happy Holidays!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s