Vegetated Coastal Dunes

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This work is ongoing, with Dr. Laura Moore of the Coastal Environmental Change Lab at UNC-Chapel Hill, and is focused on understanding and predicting the yearly-to-decadal morphodynamics of vegetated coastal foredunes. My work spans both field and modeling efforts:

  • Model
    • Development of a simplified 1-dimensional numerical model of coastal dunes subject to periodic storm events using an impulsive differential equation. What are the attracting states for coastal dunes? (Goldstein and Moore, 2016; model can be found here).
    • Use of a spatially explicit numerical model of coastal foredune growth to investigate alongshore dune height variability — ‘hummockiness’. What are the vegetative controls on when hummockiness appears? (Goldstein et al., 2017; the model can be found here).
    • Development of a calibration routine for coastal dune models using a Genetic Algorithm (using the Matlab implementation ) and displacement-based skill scores (modified from the code of Kroon and Slump 2009). How successful are   coastal dune models at prediction? This is a work in progress, and the code can be found here.
  • Field
  • Review
    • How can we use previous literature as a baseline for changes in dune grass range? I organized a ‘sprint’ literature survey of 98 studies that either stated the range limits and/or included field-based studies/observations (from NJ to NC) of two US east coast dune grass species. The data and some code was used to make this interactive map and write a paper.

 

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