Region: SPG

                                     st73                  at41             at41/st73         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.02834     0.01305     0.02249     0.00848     0.84192     0.19977
                  chl_oc3     0.02756     0.01270     0.02249     0.00848     0.86466     0.20239
                  Rrs_412     0.01814     0.00234     0.01806     0.00233     0.99585     0.02987
                  Rrs_443     0.01324     0.00131     0.01335     0.00156     1.00664     0.03444
          Rrs_490,Rrs_488     0.00714     0.00033     0.00747     0.00049     1.04598     0.04054
          Rrs_510,Rrs_531     0.00354     0.00017     0.00219     0.00011     0.61966     0.03776
          Rrs_555,Rrs_547     0.00146     0.00013     0.00155     0.00009     1.06997     0.11628
          Rrs_670,Rrs_667     0.00020     0.00005     0.00011     0.00003     0.56381     0.20518
          Rrs_670,Rrs_678     0.00020     0.00005     0.00012     0.00004     0.61733     0.20008
          aot_865,aot_869     0.06341     0.01817     0.08006     0.02263     1.34860     0.46020
                 angstrom     0.53369     0.19575     0.48889     0.23081     0.95885     0.42322