Region: global

                        st31                at22           at22/st31         
          Prod     mean     stdev      mean     stdev      mean     stdev
       nLw_412     1.665     0.060     1.585     0.065     0.952     0.019
       nLw_443     1.477     0.041     1.404     0.053     0.950     0.022
       nLw_490     1.108     0.020     1.093     0.029     0.986     0.018
       nLw_510     0.698     0.011     0.466     0.012     0.668     0.016
       nLw_555     0.358     0.008     0.343     0.009     0.957     0.027
       nLw_670     0.053     0.002     0.030     0.002     0.558     0.026
       chlor_a     0.320     0.044     0.330     0.051     1.030     0.064
        eps_78     1.047     0.009     1.052     0.009     1.005     0.005
       tau_865     0.114     0.004     0.111     0.005     0.970     0.030
  angstrom_510     0.390     0.059     0.353     0.042     0.912     0.063