tie( 
  %NCAR::COMMON::HAFTO3, 
  'NCAR::COMMON',
  -id      => 12,
  -name    => 'HAFTO3',
  -vars    => {'NCRTF' => ['32','i',1,[]],'MXLEV' => ['24','i',1,[]],'ALPH' => ['20','f',1,[]],'IL' => ['36','i',1,['135']],'NCRTG' => ['28','i',1,[]],'EXT' => ['12','f',1,[]],'YBT' => ['4','f',1,[]],'XLT' => [0,'f',1,[]],'SIDE' => ['8','f',1,[]],'IOFFM' => ['16','i',1,[]]},
);