Fortran运行时错误：浮点读取期间的值不正确

Question

我正在尝试使用Ubuntu-13中的“gfortran”读取制表符分隔的文本文件。我得到以下错误 “Fortran运行时错误：浮点读取期间的值不正确”

计划如下;

    CHARACTER*8 STID
       OPEN (8,FILE='station.txt', STATUS='OLD',FORM='FORMATTED')
       OPEN (10,FILE='stn.dat',FORM='UNFORMATTED')
       IFLAG = 0
C  Read and Write
10     READ (8,9000,END=90) IYEAR,IMONTH,STID,RLAT,RLON,RVAL
9000   FORMAT (I4,T1,I2,T1,A8,3F5.1)
       IF (IFLAG.EQ.0) THEN
          IFLAG = 1
          IYROLD = IYEAR
          IMNOLD = IMONTH
       ENDIF
C  If new time group, write time group terminator.
C  Assuming no empty time groups.
       IF (IYROLD.NE.IYEAR.OR.IMNOLD.NE.IMONTH) THEN
          NLEV = 0
          WRITE (10) STID,RLAT,RLON,TIM,NLEV,NFLAG
          ENDIF
          IYROLD = IYEAR
          IMNOLD = IMONTH
C  Write this report
       TIM = 0.0
       NLEV = 1
       NFLAG = 1
       WRITE (10) STID,RLAT,RLON,TIM,NLEV,NFLAG
       WRITE (10) RVAL
       GO TO 10
C  On end of file write last time group terminator.
90     CONTINUE
       NLEV = 0
       WRITE (10) STID,RLAT,RLON,TIM,NLEV,NFLAG
       PRINT *, STID,RLAT,RLON,TIM,NLEV,NFLAG
       STOP
       END

输入文本文件类似于

1985    11      AAAA    18.2    42.7    9.2
1985    11      BBBB    25.3    49.5    0.0
1985    11      cccc    21.5    41.6    22.6
1985    11      ddddd   29.8    40.1    3.6
....    ..      .....   ....    ....    ...