COLUMN 65 CLOJD TYPE 



Enter type (genus) of cloud according to WMO Code O5OO (lO)* as shown 

 in Table 26. 



COLUMN 66 CLOUD AMOUM- 



Enter cloud amount (fraction of the sky covered by clouds) in eighths 

 according to WMO Code 2700 (60)* as shown in Table 2?. 



COLUMN 67 VISIBILITY 



Enter visibility according to WMO Code ^300 (85A)* as shown in Table 28. 



COLUMNS 68 - 72 SPECIAL OBSERVATIONS 



Enter special observations in this space. Specify nature of special 



observations^ units, codes, and columns used in the Remarks space of 



the data form. As mentioned previously, these columns also may be 



used for ship's station numbers that exceed 3 digits (see page 5? 



Columns 31-33, SHIP'S STATION NUMBER). However, when used for this 



purpose, no other information may be placed In this field. 



COLUMNS 73 - 80 PROCESSING NUMBERS 



(to be COMPLETED BY NODC) 



The reference identity number assigned by NODC is entered in Columns 



73-75. 



NODC assigns numbers to each station consecutively in the order in which 



they appear in the source. These "consec numbers" are entered in Columns 



76-79' NODC enters one (l) in Column 80 to identify the station Master 



Card. 



■'(Number in parentheses represents old WMO Code number. 



