NATIONAL GEOPHYSICAL DATA CENTER HOURLY VALUES (NGDCHR)

COLUMNS         FMT             DESCRIPTION
  1-  3         A3              3 LETTER STATION CODE
  4-  5         I2              YEARS SINCE 1900
  6-  7         I2              MONTH
  8-  8         A1              COMPONENT
  9- 16         I2,6X           DAY
 17- 20         I4              BASE VALUE
 21-116         (24)I4          HOURLY ADDITIVE VALUES
                                         (D I)= REAL(BASE)+REAL(HOUR(K))/600.0
                                         (H X Y Z F)= REAL(BASE*100+HOUR(K))
117-120         I4              DAILY MEAN