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Timescales of inlet morphodynamic forced by tides and waves

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Title Timescales of inlet morphodynamic forced by tides and waves
 
Creator Thuy, Vu T.T.
Nielsen, Peter
Callaghan, David P.
Hanslow, David J.
 
Subject 24.5 hour moving window
Harmonic analysis
New South Wales inlets
 
Description 1332-1338
The
time scale at which an inlet responds to changes of wave height, freshwater
inflow or sediment supply is called the morphological timescale, Tmorph. To determine the
morphological time scale, one usually analyses survey data of the inlet throat
area or the volume of flood/ebb tidal deltas, but such data are costly and
therefore rare. This paper analyses tidal records using a 24.5 hour moving
window approach to find Tmorph
and provides relationships between Tmorph
and the external forcing from waves and tides for different coastal inlets in New South Wales, Australia. Response to extreme
changes in forcing depends strongly on bay/inlet size; from small inlets which
open and close several times every year to larger systems where the effect of
even the most severe weather events is not- or is barely measurable via changes
to the inlets hydraulic performance. Outcome can be used in coastal inlet
management without extensive river flow and bathymetry data.
 
Date 2016-06-27T04:33:51Z
2016-06-27T04:33:51Z
2014-07
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34449
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(7) [July 2014]