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        Summary 
        
         
          
           | Description | 
           
             English: Plot of monthly mean values of the area of the arctic sea ice, based on data of NSIDC. Area = sum of area elements weighted with concentration in this element. 
            Deutsch: Verlauf der monatlichen Mittelwerte der arktischen Meereisoberfläche. Oberfläche = Summe aller mit der jeweiligen Eiskonzentration gewichteten Flächenelemente. 
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           | Date | 
           6 October 2012 | 
          
          
           | Source | 
           Own work | 
          
          
           | Author | 
            Dominiklenne | 
          
         
         
        Data source: Fetterer, F., K. Knowles, W. Meier, and M. Savoie. 2002, updated until 2010. Sea Ice Index. Boulder, Colorado USA: National Snow and Ice Data Centre. Digital media.  ftp://sidads.colorado.edu/DATASETS/NOAA/G02135/. Corresponding website:  http://nsidc.org/data/seaice_index/archives/index.html
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