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Summary Figures
Monthly (thin lines) and 12-month running mean (thick lines or filled colors in case of Nino 3.4 Index) global land-ocean temperature anomaly, global land and sea surface temperature,
and El Nino index. All have a base period 1951-1980.
Figure also available in PDF.
The monthly mean temperature anomalies over land (data)
and over ocean (data) are available. (Data through March 2012. last updated 2012/04/13, now with GHCN version 3)
For Nino 3.4 SST see El Nino/La Nina page (last modified 2012/04/05) for data source and more information.
Annual and 5-year mean land surface temperature and SST graph is given in PDF. (2012/04/27)
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Monthly Analysis
Comparison of this year's temperature to the two warmest years in record. For other warm years, see the annual or seasonal maps below. Figure also available in PDF. (Updated on 2012/05/10, now with GHCN version 3)
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Global-mean monthly-mean surface temperature anomalies with the base period 1951-1980. V denotes the major volcanic eruptions, and m and M denote the years of the minima and maxima of sunspot number cycles, respectively. See a NOAA/NGDC page. Figure also available in PDF. (Updated on 2012/05/10, now with GHCN version 3)
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Changes in Seasonal Resolution
Seasonal mean surface temperature anomaly for 2005-2008. Figure also available in PDF. (Updated on 2011/12/20, now with GHCN version 3)
Seasonal mean surface temperature anomaly for 2009-2011 and a part of 2012., Figure also available in PDF. (Updated on 2012/05/10, now with GHCN version 3)
The warmest seasonal mean surface temperature on record. Figure also available in PDF. (Updated on 2011/12/21, now with GHCN version 3)
Surface temperature changes for 1900-2011 and 1950-2011 based on linear trends for four seasons separately. Figure also available in PDF. (Updated on 2011/12/21, now with GHCN version 3)
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Annual Analysis
Annual mean surface temperature anomaly since 1996. Of 131 years with observations the top 10 warmest years all fall between 1998 and 2010. Figure also available in PDF. (Updated on 2012/01/20, now with GHCN version 3)
Annual mean surface temperature changes based on linear trends. Figure also available in PDF. (Updated on 2012/01/20, now with GHCN version 3)
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Decadal Anomalies
Decadal surface tmperature changes. Figure also available in PDF. (Updated on 2012/01/21, now with GHCN version 3)
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Regional Changes
Zonal Means
U.S. Summer Temperature
Arctic Oscillation Index
Greenland Station Locations and Annual Mean Temperature Change
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Arctic Summer Temperature Anomalies
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All above data source: NASA Goddard Institute for Space Studies, New York, NY, except several NOAA data sets mentioned above. (See data.giss.nasa.gov/gistemp for details and data.)