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RSS AMSU: 2011 was 12th warmest year out of 33

Lamentations and panic overtook Al Gore's terrorist training camp as the most recent year dropped out of top ten

The final RSS AMSU satellite rankings for the year 2011 are exactly as I predicted them a month ago but let me repeat the figures nevertheless.

The RSS AMSU satellite temperatures have been updated repeatedly. Let me just add the new data and refresh the rankings.




The overall ranking after all 12 months is unchanged:

  1. {1998, 0.55},
  2. {2010, 0.476},
  3. {2005, 0.334},
  4. {2003, 0.324},
  5. {2002, 0.316},
  6. {2007, 0.261},
  7. {2001, 0.245},
  8. {2006, 0.232},
  9. {2009, 0.226},
  10. {2004, 0.208},
  11. {1995, 0.159},
  12. {2011, 0.147}, ◄◄◄
  13. {1999, 0.103},
  14. {1997, 0.102},
  15. {1987, 0.099},
  16. {2000, 0.091},
  17. {1991, 0.081},
  18. {1990, 0.074},
  19. {1988, 0.066},
  20. {1983, 0.066},
  21. {2008, 0.051},
  22. {1996, 0.047},
  23. {1994, 0.028},
  24. {1981, 0.022},
  25. {1980, 0.015},
  26. {1979, -0.094},
  27. {1993, -0.118},
  28. {1989, -0.12},
  29. {1986, -0.139},
  30. {1982, -0.172},
  31. {1992, -0.179},
  32. {1984, -0.224},
  33. {1985, -0.261}
As expected, 2011 remained the 12th warmest year according to the RSS AMSU dataset, cooler than all the other 21st century years except for 2008 and cooler than 1998 as well as 1995 (which was 16 years ago).

The December 2011 temperature anomaly +0.114 °C was safely between -0.42 °C and +0.25 °C needed to preserve the "12th" ranking of the year. You see that the detailed rankings differ from UAH AMSU so one shouldn't assign too much importance to these fine details.

I predict the year 2012 to end up with almost the same average temperature as 2011, mainly due to another La Niña episode. (Well, it hasn't become an episode yet and due to some recent weakening, there could even be doubts whether the conditions will survive to define an episode, but it's more likely than not that they will.)

The La Niña conditions should continue at least through May or June which should be enough, because of a 6-month delay, to keep 2012 cool. I would actually guess that 2012 should be a bit cooler than 2011.

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