Region: SPG

                                     at40                  at41             at41/at40         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.02293     0.00865     0.02293     0.00866     0.99997     0.00327
                  Rrs_412     0.01802     0.00248     0.01801     0.00249     0.99944     0.00171
                  Rrs_443     0.01334     0.00166     0.01334     0.00166     0.99996     0.00056
                  Rrs_488     0.00748     0.00050     0.00748     0.00050     1.00002     0.00040
                  Rrs_531     0.00220     0.00009     0.00220     0.00009     1.00006     0.00111
                  Rrs_547     0.00155     0.00009     0.00155     0.00009     1.00017     0.00143
                  Rrs_667     0.00011     0.00003     0.00011     0.00003     1.00098     0.00904
                  Rrs_678     0.00012     0.00003     0.00012     0.00003     1.00084     0.00775
         taua_869,aot_869     0.08542     0.02563     0.08535     0.02563     0.99923     0.00721
                 angstrom     0.49224     0.22282     0.49244     0.22250     1.00102     0.00988