[%] polar      ARQM    ARQM_B       DLR     DLR_B      GISS    GISS_B  GISS_PRE       KYU     KYU_B   KYU_PRE       LOA     LOA_B   LOA_PRE      LSCE    LSCE_B  LSCE_PRE     MATCH   MATCH_B     MOZGN   MOZGN_B
     UIO_CTM UIO_CTM_BUIO_CTM_PR   UIO_GCM UIO_GCM_BUIO_GCM_PR      ULAQ    ULAQ_B  ULAQ_PRE       UMI     UMI_B   UMI_PRE   average

        DUST                                                                                                                                                                                                        
                                                                                                                                2.33
         SO4                                                                                                                                                                                                        
                                                                                                                                2.33
          BC                                                                                                                                                  4.31                                                  
                                                                                                            5.22                4.76
         POM                                                                                                                                                  1.47                                                  
                                                                                                                                1.47
          SS                                                                                                                                                                                                        
                                                                                                                                1.47
         AER                                                        4.79                                                        3.04                          2.64                                                  
                                                                                                            2.81                3.32

*********************************************************

range of mass fractions in polar regions

    Model         Min         Max       Range

   GISS_B     4.79490     4.79490     0.00000
    LOA_B     3.03528     3.03528     0.00000
   LSCE_B     1.47226     4.30766     2.83540
    UMI_B     2.80971     5.22068     2.41097