COMPUTED MASTER CARD (CODE 1 IK COIUMN 8o) 



Columns 1-4 

 Colinnn 8 

 Column 1^1 

 Column 15 



Columns 28-33 

 Column 37 

 Columns ^0 - kl 



Column hj 



Column k8 



Column ^9 



Column 52 



Column 59 

 Column 62 

 Column 63 



Column 65 



Alphatetic code (possible) 



X = South (no X - North) 



X = East (no x = West) 



X - "extensive" drift while 

 on station 



Alphabetic code (possible) 



Corrected sounding 



Reserve x and y code overpunch 

 for Additional Observations Code 



X = State of the sea (or sea, 

 amount) given rather than 

 wave height and period 



Alphabetic code (x) to indicate 

 height of waves not determined 



Alphabetic code (x) to indicate 

 calm^ or period not determined 



X = Wind force given rather than 

 speed 



X = Negative air temperature (DRY) 



X = Negative air temperature (WET) 



Alphabetic code (x) to indicate 

 use of WMO 4501 {9OA)* 



Alphabetic code (x) to indicate 

 clouds not visible owing to 

 darkness^ fog, etc. 



"^Number in parentheses represents old WMO Code number. 



19 



