You could make this a hash of array references, like this:

my %station_data = (
  1 => \@station1,
  2 => \@station2,
  3 => \@station3,
  4 => \@station4,
  5 => \@station5,
  6 => \@station6,
  7 => \@station7,
  8 => \@station8,
  9 => \@station9,
);
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For example, if you need to access the second element inside @station5, through the new %station hash, you would say: