In open ocean, waves take the eorm of sea or swells. 

 The following is a brief summary of the character- 

 istics OF seas and swells taken from a New York 

 Un I vers I ty Report: 



In a sea, the waves are irregular , chaotic, 



short-crested, mountainous and UNPRED I CTA8LE . 



High waves follow low waves in a completely 

 MIXED up way. The crests are only two or 

 three times as long as the distance between 



crests, .. I NO f V I DUAL CRESTS CAN APPEAR TO BE 



traveling in DIFFERENT DIRECTIONS VARYING 



BY AS MUCH AS 20 OR 3O DEGREES FROM THE DOMINANT 



DIRECTION. There are waves on top of waves, and 



CRESTS WITH depressions IN THE TOP,,. THE PAT- 

 TERN OF THE SEA NEVER REPEATS ITSELF AND NEVER 

 DOPLICATCS ITSELF, No TWO AERIAL PHOTOGRAPHS 

 OR WAVE RECORDS OF A SEA WILL EVER BE EXACTLY 

 ALIKE, The PATTERN CHANGES RAPIDLY WITH TIME, 

 The HIGH WAVES DIE DOWN AS THEY TRAVEL ALONG 



and soon disappear, new waves, which were once 

 very low, form and build up to take their places, 

 Individual wave crests can disappear completely 

 in thefr tracks as they travel a distance as 

 short as ^00 feet. 



"In a SWELL, THE WAVES ART MORE REGULA 



CRESTE 

 ( COMPA 

 AND LO 

 ARE H I 

 HE IGHT 

 LOW, T 

 A M INU 

 S ING 1 

 I F THE 

 WAVE W 

 HEIGHT 

 ON THE 

 IS HIG 

 HE IGHT 

 R I GHT 

 SHORT 

 AS MUC 

 THE CR 

 UNPRED 

 OF THE 



D AND 

 RED W I 

 W WAVE 

 GH, F I 



WILL 

 HEY CA 

 TE AND 

 N HE IG 



WAVES 

 ILL PR 



OF TH 



BAS I S 

 H OR L 

 S ARE 

 VERY 

 RANGE 

 H AS S 

 ESTS. 

 I CTABL 



SEA." 



MORE 

 TH TH 

 S FOL 

 VE OR 

 PASS 

 N REM 



A HA 

 HT, T 



ARE 

 06ABL 

 E NEX 



OF W 

 OW AN 

 INCRE 

 FTEN, 

 SENSE 

 I X OR 



The 



E OVE 



PR CO 

 E AV 

 LOW 



S t X 

 I N A 

 A I N 

 LF . 

 HE N 

 DECR 

 Y BE 

 T TW 

 HE TH 

 ON 

 AS SN 



A 



1 CTABL 



erage) 



LOW WA 



WAVES 



ROW . 



LOW FO 



! F TH 



EXT WA 



EAS ING 



LOWER 



OR T 



ER THE 



THE B 



G OR D 



SWELL 



E . 



FOL 

 VES. 



OF 



WHE 

 R MA 

 E WA 

 VE W 



IN 



. A 



HREE 

 WAV 

 AS IS 

 ECRE 

 IS P 



High wa 



LOW HIG 



When 



NEARLY 

 N THE W 

 YBE AS 

 VES ARE 

 ILL BE 

 HE IGHT, 

 GUESS 

 WAVES 

 E WHICH 

 OF WHE 

 AS I NG W 

 REDI CTA 



VES 



H WA 



THE 



THE 



AVES 



MUCH 



INC 

 HIGH 



THE 

 ABOU 

 TO P 



HAS 

 THER 

 I LL 

 BLE 



. T 



SEV 



PATT 



R LO 



HE CRE 

 EN TIM 

 ERN IS 

 NGER T 



STS 

 ES T 

 ST I 

 IME 



ARE MUC 

 HE I ST 

 LL AS B 

 INTERVA 



H LO 

 ANCE 

 AS I C 

 LS A 



ONGER 



VES 



WAVES 



SAME 



ARE 



AS 

 REA- 

 £R. 



NEXT 

 T THE 

 ASS 



PASSED 



THE 

 BE 



IN A 

 NGER -- 



BETWEEN 

 ALLY 

 S THAT 



■6a- 



