Accession Number : ADA483121


Title :   Effect of Offset Jetties on Tidal Inlet Flood Flow


Corporate Author : ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB


Personal Author(s) : Hughes, Steven A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a483121.pdf


Report Date : Jan 2000


Pagination or Media Count : 9


Abstract : Tidal currents at inlets protected by jetties exhibit characteristics of jetlike flows. For flood tide, the planform geometry of parallel inlet jetties appears to be a major factor influencing the flood flow distribution across the inlet channel. Equal length jetties tend to direct the majority of the flood flow down the middle of the channel, but if the jetties have unequal seaward lengths, the flow is directed to one side of the channel. This asymmetric shoaling on the opposite side of the channel, forcing navigation away from the channel centerline. This paper presents measurements acquired at Shinnecock Inlet, Long Island, New York, that support the existence of jet like flood flows predicted to be induced by offset jetties.


Descriptors :   *INLETS(WATERWAYS) , *BREAKWATERS , *TIDAL CURRENTS , PLANFORM , CHANNELS , NAVIGATION , NEW YORK , DISTRIBUTION , JET FLOW


Subject Categories : Hydrology, Limnology and Potamology
      Civil Engineering
      Physical and Dynamic Oceanography


Distribution Statement : APPROVED FOR PUBLIC RELEASE