Weird Coincidence – PDO Goes Negative And Arctic Temperatures Return To Where They Were The Last Time The PDO Was Negative

11 Responses to Weird Coincidence – PDO Goes Negative And Arctic Temperatures Return To Where They Were The Last Time The PDO Was Negative

1. MikeTheDenier says:

   December 12, 2010 at 4:35 am

   Damn Gorebal warming..

   UPDATE: MINNEAPOLIS (AP) — The Vikings-Giants game has been postponed until Monday night because of snowstorm

   http://www.theblaze.com/stories/midwest-blizzard-strands-giants-in-kansas-city-prior-to-vikings-game/

   Reply
   • Amino Acids in Meteorites says:

     December 12, 2010 at 4:57 am

     Nice to know. Favre has one more day for his arm to heal.

     Reply
2. MikeTheDenier says:

   December 12, 2010 at 4:39 am

   Is that a kitty or a snow fox north of Norway?

   http://home.comcast.net/~ewerme/wuwt/cryo_latest.jpg

   Reply
   • Mike Davis says:

     December 12, 2010 at 5:14 am

     Might be a Doberman! 😉

     Reply
     • Mike Davis says:

       December 12, 2010 at 5:17 am

       I found it:
       http://download-free-pictures.com/fantasy/gremlin-1.html

       Reply
3. Mike Davis says:

   December 12, 2010 at 5:15 am

   Is the AO also in its negative mode? It is about that time again!

   Reply
4. Ted Gibson says:

   December 13, 2010 at 9:22 pm

   Hi Steve.
   Great site and information.
   And probably what sounds like a dumb question?
   I am a layman who has become a septic of AGW. But I still have a lot to learn.
   So what is the time frame of the Pacific Decadal Oscillation (PDO) graph shown above, The graph looks like a one year = 0 to 365 days on the bottom and Kelvin (K) temperature on the left?
   But I read that the PDO is a pattern of Pacific climate variability that shifts phases on at least inter-decadal time scale, usually about 20 to 30 years.
   So where or how can it have a 1 yr cycle as per the graph. What am I missing or not understanding?
   Also why is it in Kelvin as oppose to Celsius?
   Can you give more information so I can relate the two?
   Thanks
   Ted Gibson

   Reply
   • stevengoddard says:

     December 13, 2010 at 9:57 pm

     Maybe 40 years? The PDO is an empirical observation. I don’t think there is a lot of theory behind it.

     Reply
   • Mike Davis says:

     December 13, 2010 at 10:57 pm

     Ted:
     This is about the best explanation I have found for the PDO:
     http://www.appinsys.com/GlobalWarming/PDO.htm
     Excerpt:
     The Pacific Decadal Oscillation (PDO) was defined by fisheries scientist Steven Hare in the mid-1990’s, based on observations of Pacific fisheries cycles. The PDO index is calculated from sea surface temperatures and sea level pressures. An overview of the PDO is given by Nathan Mantua (Joint Institute for the Study of the Atmosphere and Oceans, University of Washington) [http://www.atmos.washington.edu/~mantua/REPORTS/PDO/PDO_egec.htm].

     The PDO goes through warm and cool phases of the cycle with phases typically lasting about 30 years. The causes of the oscillation are currently unknown. A good source of information on the PDO is http://jisao.washington.edu/pdo/.
     This is the main site for lots of climate information:
     http://www.appinsys.com/GlobalWarming/

     Reply

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6. Alec, aka Daffy Duck says:

   December 20, 2010 at 9:18 pm

   PDO goes negative and the U.S. has ‘Winter like the old days’

   Dec 21st % Snow Coverage Ave. Depth

   2010 48.0% 4.5″[ December 20th]
   2009 51.7% 3.8″
   2008 53.4% 4.4”
   2007 42.3% 4.2”
   [hmm….Pacific Decadal Oscilation switched from warm phase to cool phase]

   2006 26.3% 2.4″
   2005 44.8% 3.2″
   2004 18.6% 1.2”
   2003 24.7% 1.7”
   http://www.nohrsc.noaa.gov/nsa/index.html?region=National&year=2010&month=12&day=21&units=e

   Reply