through the inlet can be computed. 



Q . <rfV_ . 3.14 x 431,730,000 



m " T 12.42x3,600 



Q m = 30,300 c.f.s. 



The computed * m when compared in the following manner 



Q m (computed)- Q m ( observed) 



Q m (computed) 



with the observed Q taken fro"* the average discharge curve on figure 5 

 shows that the computed value is 12. 5> high. This is considered to be in 

 reasonable agreement with the gaged data. 



Manasquan Inlet (figure 6) located on the New Jersey Coast about 25 

 miles south of bandy Hook, is a long tidal estuary which derives the maximum 

 portion of its tidal prism from the tidal flow through the inlet. The tidal 

 prism as derived from gaging data taken in June 1935 is given as 174,500,000 

 cu . ft. ' ith this value known, the maximum quantity of water, Q m , was com- 

 outeo to be 12,250 c.f.s. The computed Q^ when compared with the observed 

 i^ m taken from the average discharge curve on figure 7 shows the computed 

 value to be 15*1$ higho 



Beaufort Inlet (figure 8) is situated on ^he coast of North Carolina 

 about 10 miles west of Cape Lookout. The inlet connects the fttlantic Ocean 

 with Bogue Sound, Back oouni, and the tidal estuaries of the North and New- 

 port Id vers, 'hen gaged on 15 March 1927 the tidal prism was observed to 

 be 4, 250, 000, 000 cu. ft. Substituting this value in bhe derived formula, 

 the theoretical ^ is found to be 299,000 c.f.s. This computed Q m when com- 

 pared with the observed Q m read from the average discharge curve in figure 9 

 discloses that the former value is T^.5^ hish. 



Baker's Haulover Inlet (figure 10) lies on the eastern coast oi t loriaa 

 about 10 miles north of the entrance tr. ''iami Harbor. The inlet connects the 

 Atlantic Ocean with the upper reaches of Biscayne Bay which widens and opens 

 southward, rhe tidal prism as determined from the gating data observed 

 28 October 1943 '" & s 360,100,000 cu . ft. Hence the computed % m is found to be 

 25,300 c.f.s, vr hen this value is compared with the observed Q m from the aver- 

 age discharge curve on figure 11 it is noted that the value is 13»0^ high. 



The results derived from the above examples are listed in table 1. 



c.f 





TV 



i BLE 



1 





Inlet 



Computed .*- : < 



s -L - 



, "\ 



( bserved <,..-n 



Nantucket 



30,300 







26,500 



Manasquan 



12,250 







10,400 



Beauf ort 



2.99,000 







252,500 



biker's Haulover 



25,300 







22,000 



Average deviation 











1 .evl- 



; tion 



+12 



.5 



*15 



.1 



♦ i 5 



.5 



+13 



.0 



+14 



.0 



17 



