Region: SIO

                                   sr2007                  st83           st83/sr2007         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.07770     0.02573     0.07388     0.02785     0.93820     0.06124
                  Rrs_412     0.01353     0.00233     0.01307     0.00221     0.96710     0.01367
                  Rrs_443     0.01050     0.00147     0.01042     0.00143     0.99277     0.01252
                  Rrs_490     0.00671     0.00051     0.00660     0.00049     0.98391     0.01267
                  Rrs_510     0.00371     0.00019     0.00366     0.00019     0.98551     0.01958
                  Rrs_555     0.00165     0.00013     0.00163     0.00013     0.98964     0.03466
                  Rrs_670     0.00028     0.00004     0.00023     0.00005     0.80216     0.08773
          tau_865,aot_865     0.09172     0.02617     0.05921     0.01841     0.64170     0.04300
           eps_78,epsilon     1.03984     0.02339     1.04167     0.02382     1.00179     0.00885
    angstrom_510,angstrom     0.34757     0.14403     0.78698     0.25008     2.41311     0.58221