Paper 1 7 



(Fig. 17.1). Therefore/^ any physical phenomena related to the 

 anoxic condition in the bottom waters must have occurred earlier. 



To define environmental conditions that might have led to anoxic 

 conditions/^ various sets of historical and c I imat o log i ca I data 

 were examined. The data used and their sources were: 



Monthly mean river discharge for the Delaware River and 

 Hudson Riverr and cumulative discharge into Long Island 

 Sound/ provided by the U.S. (Geological Survey. 



f^onthly mean sea surface temperature* compiled from ship 

 reports and published in 2yiistream (National Weather 

 Service/ January 1975-August 1976) and in The Gulf St££a2! 

 (j2D£.hl^ iumrnar^ (U.S. Naval Ocea nographi c Officer January 

 1966-Dece(nber 1974). 



I^onthly mean shore station temperatures at tide stations 

 (Sandy Hook/ Atlantic City/ and Cape May/ NJ)/ acquired from 

 the National Ocean Survey/ NOAA. 



Historical oceanographic station data/ including dissolved 

 oxyoen ooservations/ provided by the National Oceanographic 

 Data Center/ Environmental Data Service/ NOAA. 



In addition/ data from oceanographic stations occupied in the 

 area in 19 7:> were provided by the Sandy Hook Laboratory of NMFS 

 and by the Atlantic Oceanographic and "Meteorological Laboratories 

 of NOAA'S Environmental Research Laboratories. 



CLIf^ATOLOGICAL CONDITIONS 



nn ex a 

 e s sent 

 be twee 

 the s 

 1976 t 

 any o 

 T he ea 

 water 

 water 

 I arqes 

 years) 

 At lent 

 F ebrua 

 a d d i t i 

 Del awa 

 early 

 f r eshe 



mi n at 

 ia I ly 

 n t he 

 ur f ac 

 he wa 

 f th 

 r ly w 

 t emp 

 t e^ipe 

 t wa 

 Fc 

 ic C 

 ry 1 

 on / 

 re an 



i n 

 ni ng 



i on of 

 oegan 



me an a 

 e wate 

 t er s be 

 e pr ec 

 a rmi no 

 e ra t u re 

 r at ures 

 r mi ng 

 r the I 

 ity (1 

 976 wa 

 t he us 

 d H udso 



1*76/ 

 of surf 



c I i mat 



one 

 nd 197 

 r s off 

 g an wa 

 ed i no 

 in 197 

 r eco 



in Fe 

 for t 

 onqe r 

 912-19 

 rm i ng 

 ua I s 

 n Rive 



which 

 ace wa 



ol og i 



to t 



6 ann 



New 

 r m i ng 

 10 y 

 6 is 

 rds/ 

 brua r 

 hose 

 re cor 



was 

 pring 

 rs ( F 

 wou 

 t e r s 



ca I recor 



wo mont hs 



ual cycle 



Jersey (F 



at least 



ears ( Feb 



also in 



where at 



y over Ja 



months f 



d of shor 



1923-1969 



ex ceeded 



increase 



ig. 17.3) 



Id cause 



ove r the 



ds i 

 earl 

 s of 

 ig. 1 



one 



r ua r y 



di c at 



Sand 



nua ry 



or t h 



e s t a 



/ 19 



onl 



in r 



heg 



an 



shelf 



nOi ca 

 y in 

 warmi 

 7.2) 

 mont h 



vs . 

 eo i 

 y Hoo 



1976 

 e per 

 t ion 

 72-19 

 y on 

 i ver 

 an a 



earl 

 S p 



tes 

 1976 

 ng a 

 i ndi 



ear 

 Marc 

 n s 

 k th 



rep 

 iod 



t em 

 76)/ 

 ce 



disc 

 bout 

 i e r 

 ring 



tha 



C 



nd c 



cate 



I ier 



h an 



hore 



e i n 



res e 



of r 



per a 



the 



(19 



harg 



tw 



tha 



inc 



t s 



ompa 



oo I i 



s th 



tha 



d Ap 



St 



crea 

 nt ed 

 ec or 

 ture 

 Jan 

 27). 

 e f o 

 o m 

 n n 

 reas 



pnng 

 r i s o n 

 ng in 

 at in 

 n in 

 ri I), 

 at i on 

 se in 

 the 

 d (32 

 s at 

 ua r y- 

 In 

 r the 

 on t hs 

 or ma I 

 e in 



290 



