NODC CODES USED IN THE OCEAN CLIMATE LABORATORY DATA SYSTEM.
 CODES ARE THE SAME AS THOSE USED BY NODC EXCEPT WHERE A VALUE IS
 FOLLOWED BY A VALUE IN PARENTHESES.  THE VALUE IN PARENTHESES IS
 THE VALUE NODC USES.  NA MEANS NOT AVAILABLE (AS AN OPTION).
 [*] MEANS DEFAULT VALUE.  THE DEFAULT VALUE IS ASSUMED IF THE
 CODE IS NOT INCLUDED IN AN OCL PROFILE.

 FIRST NUMBER: OCL CODE
 SECOND NUMBER: NODC CODE
 THIRD NUMBER: CODE DESCRIPTION

     27   0053   CLOUD TYPE (WMO500)
     --   ----   --------------------
      0        -- CIRRUS (CI)
      1        -- CIRROCUMULUS (CC)
      2        -- CIRROSTRATUS (CS)
      3        -- ALTOCUMULUS (AC)
      4        -- ALTOSTRATUS (AS)
      5        -- NIMBOSTRATUS (NS)
      6        -- STRATOCUMULUS (SC)
      7        -- STRATUS (ST)
      8        -- CUMULUS (CU)
      9        -- CUMULONIMBUS (CB)
      10   (X) -- CLOUD NOT VISIBLE OWING TO DARKNESS, FOG, DUSTSTORM,
                  SANDSTORM, OR OTHER ANALOGOUS PHENOMENA
      *    ( ) -- NOT RECORDED