between the computed and measured values at Massey, and there is inconsistency 

 in the measured data between Massey and the other gages. The cause of the 

 discrepancy could be a difference in the base elevation at the Massey gage 

 (believed to be the probable cause), river discharge, wind, or some unknown 

 flow situation taking place at Massey. 



180. Comparison of computed and measured stages indicates that the 

 computed stage at Gage USCG is sensitive to the friction and transition loss 

 coefficients in the inlet. Gage USCG is located in a small harbor, which may 

 account for the slight discrepancy between computed and measured stages there. 

 Significant energy losses occur at the bridge pilings, indicating that the 

 transition- loss term describes a vital physical process in this narrow channel 

 further constricted by the bridge pilings. 



181. Examination of the stage records in Rehoboth and Indian River Bays 

 indicates considerable differences in water surface elevations at different 

 locations in the bays. The water surface is not fluctuating simultaneously in 

 the bays, indicating significant dynamic action in the double bay system. 

 There is thus a kind of long-period wave in this big bay system that cannot be 

 properly described by a lumped-parameter model that assumes the water level 

 rises equally over an equivalent bay area. Comparison of measured and 

 computed values indicates that DYNLETl has correctly reproduced the dynamic 

 fluctuations in water surface elevations in the two bays . Comparison of 

 computed and measured discharges cannot be made because measured volume flow 

 rates were not available. 



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