6. Dissoived 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. See footnote 1 on page 6. 



TABLE I . COMPASS DIRECTION CONVERSION TABLE FOR 



WIND, SEA, AND SWELL DIRECTIONS 



Code Direction Code Direction 



00 _— _.— Calm 19 185" to 194" 



01 — 5" to 14" 20 195" to 204" SSW 



02 15" to 24" NNE 21 — — — — 205" to 214" 



03 -— — — 25'' to 34" 22 —»———— 215" to 224" 



04 ——«.—— 35" to 44" 23- 225" to 234" SW 



05 — — 45" to 54° NE 24 — — 235" to 244" 



06 — — — 55" to 64" 25 — 245" to 254" WSW 



07 — ^ — — 65" to 74" ENE 26 — — — 255" to 264" 



08 — -' 75" to 84** 27 — — — — - 265* to 274" W 



09 85" to 94" E 28 275" to 284" 



10 — 95" to 104" 29 — — - 285" to 294" WNW 



n — .-._—.. 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 



14 » 135° to 144" SE 33 -»— — 325" fo 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 



18 175° to 184" S 99 — ■ Variable or unknown 



49 



