Paper 17 



discharge into Long Island Sound was also two months early. 



These two conditions^ early warming and Lowering of surface 



salinities from early occurrence of high discharge/ would 



establish stratification of the weter column some one to two 

 months early. 



OXYGEN CYCLE A^D STRATIFICATION 



The annual cycle of dissolved oxygen in the subpycnoc li ne waters 

 is shown in Figure 17.4/ which is a compilation of historic 

 observations from the NODC archives for a 1-deg square off New 

 Jersey (39N-4QN/ 73W-74W). Also included in the compilation were 

 values collected in July 1957." For this analysis oxygen 

 measurements at the greatest sanpling depth for each station with 

 bottom depths >2.Q m and <60 m were plotted by month/ regardless 

 of year of observation/ and a mean annual trend was derived from 

 the plotted values. Data were available in all 12 months. They 

 were obtained from 77 stations (28 cruises/ 12 years). 



Du r i ng 

 Waters 

 bottom 

 concen 

 i nc rea 

 March 

 sa I i n i 

 es t ab I 

 and it 

 rep len 

 shelf/ 

 a c t i vi 

 t h roug 

 the S 

 pr ovi d 

 rep len 

 I imi t e 

 spring 

 s t agna 

 than 

 de crea 

 until 

 s t rat i 



fall and 



causes o 



and r ai s 

 trations. 

 se in bot 



(Fig. 17 

 ties de c 

 is h i ng s t 

 s pers ist 

 i shmen t 



where di 

 ty. The 

 h s pr i ng 

 helf Wat 

 e e V i den 

 is hment 

 d vertica 

 and su 

 nt water 



rep leni s 

 se (Fin. 



su rf a ce 

 f i c a t i on 



w i nt e 

 vertur 

 es bot 

 Sur 

 torn ox 

 .4)/ 

 r ease 

 r a t i f i 

 ence t 

 of ox 

 s so Ive 

 per si s 

 and su 

 er/Slo 

 ce of 

 by ad 

 I and 

 mmer 

 mass i 

 hment . 

 17.4) 



coo I i 

 in Sep 



r / CO 



nino/ 

 torn 

 face 

 ygen 

 when 



as 

 cat i o 

 hroug 

 ygen 

 d oxy 

 t ence 

 mme r / 

 pe W 

 li 

 vec t i 

 hor iz 

 the 

 n whi 

 S 

 f rom 

 ng a 

 t embe 



o I i n 



whi 

 xyge 

 cool 

 cone 



sur 

 sp ri 

 n. 

 h sp 



int 

 gen 



of 



and 

 at er 

 mite 

 on 



ont a 

 bott 

 ch u 

 ubpy 

 the 

 nd 

 r . 



g at t 

 ch mixes 

 n concen 

 i n g / o V e 

 ent ra t io 

 face war 

 ng ri V 

 The St re 

 ring an 



the 

 is norma 

 the cold 



the St r 

 f ront 

 d late 

 from of 



1 ex cha 

 om water 

 ti lizati 

 cnoc I ine 

 on«:et of 

 overturn 



he SU 

 the w 

 t r at i 

 r tu rn i 

 ns typ 

 mi ng b 

 e r d 

 ngt hen 

 d sum 

 subpy c 

 I ly de 



core 

 ong t e 

 over t 

 ral 



f s hore 



nge i 



on t h 



on of 



oxy 



St ra 



i nq b 



r f ac 

 ater 

 ns t 

 ng / 

 ica I 

 egi n 

 i sch 

 ing 

 mer 

 noc I 

 plet 

 over 

 mpe r 

 he c 

 mi x i 



mpl i 

 e sh 

 ox 

 qen 

 tif i 

 egi n 



e o 

 s fr 

 o e 

 and 

 ly c 

 s . 



arge 

 of s 



I im 

 ine 

 ed b 



the 

 at ur 

 ont i 

 ng 

 The 

 es 

 elf 

 ygen 



va I 



ca t i 



br 



f t 



om s 



qua I 



the 



ont i 



'^ Iso 



i 



t rat 



its 



wate 



y b 



mi d 



e gr 



nent 



and 



con 



that 



i s a 



i s 



ues 



on 



eak i 



he 



urf a 

 su 

 resu 

 nue 

 / su 

 nc re 

 i f i c 



ver 

 rs o 

 iolo 

 die 

 adi e 

 a L s 

 o 

 dit i 

 th 



som 



gr 



st e 

 i n 



ng u 



Shelf 

 ce to 

 r f a ce 

 It i ng 

 into 

 rf a ce 

 ases/ 

 at i on 

 t i ca I 

 n the 

 gi ca I 

 shelf 

 nt of 

 lope/ 

 xygen 

 on of 

 rough 

 ew hat 

 eater 

 ad i ly 

 March 

 p the 



Woods Hole Oceanograph i c Institution. 1961. Biological/ 

 chemical/ and radiochemical studies of marine plankton. Reduced 

 data report/ Appendix C to Ref. No. 61-6. 



291 



