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Summer Temperature Anomalies for the Northern Hemisphere, 1955-2011

This visualization shows a flat map of the Earth with summertime temperature anomalies for the Northern Hemisphere. This analysis compares observed seasonal mean temperatures (June-July-August) to the seasonal mean temperatures during a base period from 1951 to 1980.

The colors correspond to statistical standard deviations from the seasonal mean of the base period. The hot anomalies are defined as "hot" (orange); "very hot" (red); and "extremely hot" (bown). The cold anomalies are defined as "cold" (light blue); "very cold" (dark blue); and "extremely cold" (purple). Regions in white fall within the normal category.

The visualization shows the increasing occurrence, in particular, of "extremely hot" temperatures since 2000. While these temperatures were experienced by less than 1 percent of land areas during the base period, about 10 percent of land areas have experienced these summer temperatures since 2000. These extreme heat events include the heat waves in Europe in 2003, Russia in 2010, and Texas and Oklahoma in 2011.

No data is shown below the equator because this only uses Northern Hemisphere June-July-August temperature data. The visualization shows the data for 1955, 1965, 1975 and then 1985-2011.

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Dice temperature variations on a flat map    Dice temperature variations on a flat map
Duration: 41.0 seconds
Available formats:
  1920x1080 MPEG-4   1 MB
  640x360     MPEG-4   805 KB
  1920x1080 Frames
  320x180     PNG           32 KB
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Color bar for summer temperature anomalies:
   Color bar for summer temperature anomalies:

"hot" (orange); "very hot" (red); extremely hot" (brown); "cold" (light blue); "very cold" (dark blue); "extremely cold" (purple)

Available formats:
  948 x 176         PNG       47 KB
  320 x 70           PNG       21 KB

Short URL to This Page:http://svs.gsfc.nasa.gov/goto?3970
Animation Number:3970
Completed:2012-08-02
Animators:Greg Shirah (NASA/GSFC) (Lead)
 Lori Perkins (NASA/GSFC)
Producer:Kayvon Sharghi (USRA)
Scientists:James Hansen Ph.D. (NASA/GSFC GISS)
 Makiko Sato Ph.D. (NASA/GSFC GISS)
Writer:Patrick Lynch (Wyle Information Systems)
Platform/Sensor/Data Set:GISS Climate Dice Analysis
Please give credit for this item to:
NASA/Goddard Space Flight Center GISS and Scientific Visualization Studio
 
Keywords:
SVS >> Climate
GCMD >> Earth Science >> Climate Indicators
SVS >> Climate Change
SVS >> Weather >> Climate Change
 
 


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Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0

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