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\begin{document}

\title{Poster_Final_Kadir}



\author[1]{Md Nurul Kadir}%
\affil[1]{Affiliation not available}%


\vspace{-1em}



  
  \date{May 24, 2024}


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\begin{abstract}
\textbf{Estuaries are dynamic coastal features that support industry,
food production, and recreation, and provide habitat for numerous animal
species. Their typically low surface gradients make estuaries vulnerable
to sea level rise, storms, and high river water discharge. This
vulnerability combined with the large number of people who often live
near estuaries has led to increasing efforts over recent decades to
improve our understanding of how to minimize flooding and protect people
and property. Despite these efforts, however, we still lack the tools to
quantify the relationship between changes in estuarine morphology and
flood risks. In particular, the interplay between bathymetric changes
and water levels during storm conditions remains poorly quantified. To
address this knowledge gap, we present a general enthalpy framework for
modeling the evolution of estuaries that couples a low gradient
subaerial topset and a subaqueous offshore region or foreset. Sediment
transport in both the subaerial and subaqueous domains includes a
non-linear term that relates sediment flux, local slope, and a threshold
of motion. With this approach, we describe the evolution of the
bathymetric profile and sediment partitioning between topset and foreset
under a range of sea-level variations scenarios. We find that in some
cases upstream sections of the topset can undergo erosion during periods
of sea-level rise and deposition during sea-level fall, contradicting
traditional stratigraphic models. These counterintuitive bathymetric
changes could potentially lead to shifts in the location of maximum
water levels along the estuary not accounted for by models of storm
inundation.}%
\end{abstract}%



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