Region: SPG

                                     st77                  st81             st81/st77         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.02715     0.01164     0.02934     0.01217     1.08584     0.01950
                  Rrs_412     0.01814     0.00227     0.01824     0.00225     1.00582     0.00591
                  Rrs_443     0.01321     0.00129     0.01330     0.00128     1.00703     0.00439
                  Rrs_490     0.00712     0.00034     0.00720     0.00034     1.01096     0.00120
                  Rrs_510     0.00351     0.00015     0.00358     0.00015     1.01970     0.00183
                  Rrs_555     0.00143     0.00011     0.00148     0.00011     1.03693     0.00300
                  Rrs_670     0.00018     0.00004     0.00020     0.00005     1.10481     0.01731
                  aot_865     0.06619     0.02081     0.06632     0.02081     1.00223     0.00165
                 angstrom     0.66110     0.21099     0.65797     0.21200     0.99432     0.00923
                  epsilon     1.03170     0.02092     1.03141     0.02104     0.99972     0.00054