Region: SPG

                                     st83                  at63             at63/st83         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.02670     0.01126     0.02495     0.00949     0.96841     0.20540
                  Rrs_412     0.01839     0.00227     0.01856     0.00244     1.00884     0.02955
                  Rrs_443     0.01337     0.00128     0.01362     0.00155     1.01718     0.02911
          Rrs_490,Rrs_488     0.00715     0.00035     0.00755     0.00050     1.05593     0.03646
          Rrs_510,Rrs_531     0.00353     0.00015     0.00227     0.00009     0.64461     0.03285
          Rrs_555,Rrs_547     0.00145     0.00011     0.00163     0.00008     1.13159     0.09920
          Rrs_670,Rrs_667     0.00019     0.00004     0.00015     0.00003     0.80024     0.20161
          Rrs_670,Rrs_678     0.00019     0.00004     0.00015     0.00003     0.80323     0.18939
          aot_865,aot_869     0.06073     0.01914     0.07557     0.02039     1.34165     0.44178
                 angstrom     0.72538     0.23400     0.70122     0.22988     1.04091     0.40341