Dataset {
    Float32 S[S = 2];
    Float32 L[L = 1];
    Grid {
     ARRAY:
        Float64 R0FCST_DJF20182019[L = 1][S = 2];
     MAPS:
        Float32 L[L = 1];
        Float32 S[S = 2];
    } R0FCST_DJF20182019;
} R0FCST_DJF20182019;