Region: SPG

                                         vt15                    vt22                   vt22/vt15
                     Prod       mean       stdev        mean       stdev        mean       stdev         R^2        mapd
                  chlor_a     0.02458     0.01164     0.02810     0.01398     1.13050     0.11792     0.96782    10.59835
                  Rrs_410     0.01686     0.00353     0.01671     0.00346     0.99172     0.01990     0.99243     1.57575
                  Rrs_443     0.01257     0.00211     0.01235     0.00209     0.98218     0.01314     0.99432     2.09888
                  Rrs_486     0.00739     0.00078     0.00726     0.00077     0.98241     0.01057     0.98944     2.25729
                  Rrs_551     0.00143     0.00011     0.00146     0.00008     1.02440     0.04358     0.73526     2.37685
                  Rrs_671     0.00012     0.00002     0.00013     0.00002     1.04844     0.04353     0.93605     4.01555
                  aot_862     0.07825     0.01750     0.07779     0.01736     0.99434     0.00395     0.99970     0.61587
                 angstrom     0.68057     0.19994     0.68905     0.21151     1.01322     0.06455     0.96111     5.62274
                  epsilon     1.04703     0.02169     1.04739     0.02247     1.00034     0.00485     0.94799     0.33665