Specifies that an object is an array, and defines the shape of the
  array.

  The DIMENSION attribute can be specified in a type declaration
  statement or a DIMENSION statement, and takes one of the following
  forms:

  Type Declaration Statement:

   type, [att-ls,] DIMENSION (spec) [,att-ls] :: a[(spec)] [,a[(spec)]]...

  Statement:

   DIMENSION [::] a(spec) [,a(spec)]...

     type        Is a data type specifier.

     att-ls      Is an optional list of attribute specifiers.

     spec        Is an array specification.  In a type declaration,
                 any array specification following an array overrides
                 any array specification following DIMENSION.

     a           Is the symbolic name of the array.  If the array
                 is not defined in a type declaration statement, the
                 array takes an implicit data type.

  An array can also be declared in the following statements:
  ALLOCATABLE, POINTER, TARGET, and COMMON.

  The DIMENSION attribute is compatible with the ALLOCATABLE,
  AUTOMATIC, INTENT, OPTIONAL, POINTER, PRIVATE, PUBLIC, SAVE,
  STATIC, TARGET, and VOLATILE attributes.

  See also DATA ARRAYS in this Help file.