6. Dissolved Oxygen . These values when given are in milliliters per liter 

 to two decimal places. Values of 10.00 or above rarely occur and are coded as 

 9.99. 



7. Sound Velocity . Sound velocity is given in feet per second to one 

 decimal place, corrected for pressure at each depth . 



TABLE 1 . COMPASS DIRECTION CONVERSION TABLE FOR 

 WIND, SEA, AND SWELL DIRECTIONS 



Code Direction Code Direction 



Calm 19 185° to 194° 



5 o to 14 o 20 195° to 204° SSW 



15° to 24° NNE 21 205° to 214° 



25° to 34° 22 215° to 224° 



350 to 440 23 225° to 234° SW 



45° to 54° NE 24 235° to 244° 



55 o to 640 25 245° to 254° WSW 



65° to 74° ENE 26 255° to 264° 



75° to 84° 27 265° to 274° W 



85° to 94° E 28 275° to 284° 



00 



01 



02 



03 



04 



05 



06 



07 



08 



09 



10 95° to 104° 29 285° to 294° WNW 



H 105° to 114° ESE 30 295° to 304° 



12 115° to 124° 31 305° to 314° 



13 125° to 134° 32 315° to 324° NW 



H 135° to 144° SE 33 325° to 334° 



15 145° to 154° 34 335° to 344° NNW 



16 - — 155° to 164° SSE 35 345° to 354° 



17 165° to 174° 36 355° to 4° N 



,g I750 to ^340 5 99 Variable or unknown 



