Region: SPG

                                     ot07                  ot11             ot11/ot07         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.02493     0.00910     0.03349     0.01474     1.31701     0.15887
                  Rrs_412     0.01969     0.00291     0.02080     0.00291     1.05787     0.01269
                  Rrs_443     0.01475     0.00174     0.01611     0.00168     1.09406     0.01921
                  Rrs_490     0.00736     0.00057     0.00856     0.00047     1.16639     0.03648
                  Rrs_516     0.00307     0.00017     0.00336     0.00016     1.09916     0.04650
                  Rrs_565     0.00133     0.00007     0.00160     0.00010     1.20415     0.08265
                  Rrs_667     0.00010     0.00003     0.00024     0.00005     2.42315     0.48683
                  aot_862     0.07458     0.02090     0.06641     0.01637     0.90243     0.06993
                 angstrom     0.02073     0.01981     0.71057     0.21971    69.89941    54.97188