Region: SPG

                                         vt25                    vt31                   vt31/vt25
                     Prod       mean       stdev        mean       stdev        mean       stdev         R^2        mapd
                  chlor_a     0.02700     0.01360     0.04390     0.02105     1.64097     0.16991     0.94903    49.54013
                  Rrs_410     0.01754     0.00315     0.01745     0.00317     0.99432     0.01018     0.99711     0.86859
                  Rrs_443     0.01279     0.00195     0.01258     0.00198     0.98231     0.00790     0.99862     1.70347
                  Rrs_486     0.00752     0.00071     0.00734     0.00074     0.97617     0.00920     0.99472     2.40237
                  Rrs_551     0.00150     0.00008     0.00145     0.00007     0.96742     0.01696     0.87335     3.74453
                  Rrs_671     0.00013     0.00002     0.00013     0.00002     0.93827     0.04164     0.87936     5.39516
                  aot_862     0.07736     0.01718     0.08212     0.01960     1.05925     0.04816     0.95775     5.31560
                 angstrom     0.68718     0.18859     0.75659     0.18701     1.11291     0.09609     0.93710     8.99047
                  epsilon     1.04716     0.02139     1.05071     0.02125     1.00340     0.00292     0.98002     0.33836