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Wednesday, March 18, 2009

March 2009 Mid-Month ENSO Update

I’ve moved to WordPress.  This post can now be found at March 2009 Mid-Month ENSO Update
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During the week centered on Wednesday March 11, 2009, NINO3.4 SST anomalies have risen above the threshold for a La Nina to -0.41 deg C.
http://s5.tinypic.com/24gkhg8.jpg
NINO3.4 SST Anomalies

On the other hand, NINO3 SST anomalies have dropped to -0.84 deg C.
http://s5.tinypic.com/511wkz.jpg
NINO3 SST Anomalies

The cool water appears to be working its way westward toward the NINO3.4 region. Refer to the following map…
http://s5.tinypic.com/2pritmx.jpg
Central Pacific SST Anomalies (Week Centered on March 11, 2009)

And refer to the animation in the following link:
http://www.cdc.noaa.gov/map/clim/sst_olr/sst_anim.shtml

To add another perspective, the Southern Oscillation Index (SOI) for February 2009 shows no sign of weakening. Note that the SOI data has been inverted so that it corresponds to the variations in NINO SST anomalies.
http://s5.tinypic.com/iw0l7t.jpg
Inverted Southern Oscillation Index

SOURCES

The map and the SST anomaly data used to create the graphs are available through the NOAA NOMADS system:
http://nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh?lite=

Southern Oscillation Index data available from the Australian Bureau of Meteorology webpage:
http://www.bom.gov.au/climate/current/soi2.shtml
Specifically:
http://www.bom.gov.au/climate/current/soihtm1.shtml

2 comments:

John said...

Nothing has done more to "GREEN" the planet over the last several decades than elevated levels of CO2 together with moderate sun driven warming. Studies show doubling CO2 levels increases plant growth rates 33 percent. It is no accident commercial greenhouse operators invest heavily in CO2 generators to increase the productivity of their operations. Farmers, ranchers and foresters, and in fact all living things, have benefited from this rare, but temporary, gift of nature. Why is our government spending so many resources to convince us otherwise?

Bob Tisdale said...

John: What does your comment have to do with the subject of this post, ENSO? Please remain on topic. Future off-topic comments will be deleted.

Regards.

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Comment Policy, SST Posts, and Notes

Comments that are political in nature or that have nothing to do with the post will be deleted.
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The Smith and Reynolds SST Posts DOES NOT LIST ALL SST POSTS. I stopped using ERSST.v2 data for SST when NOAA deleted it from NOMADS early in 2009.

Please use the search feature in the upper left-hand corner of the page for posts on specific subjects.
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