A new version of the XBeach-G GUI has been released, which can be dowloaded below. Version 1.2.0 of the GUI has addressed the issues relating to project export that were present in versions 1.0.0 and 1.0.1.
XBeach-G is a branch of the main XBeach development that is being developed to simulate storm impacts on gravel beaches. The development of XBeach-G is taking place as a joint collaboration between Plymouth University and Deltares, as part of the EPSRC-funded NUPSIG-project.
XBeach-G uses the one-layer, depth-averaged, non-hydrostatic extension to the XBeach model (nonh=1), which is similar to the SWASH model (Zijlema et al., 2011) to solve wave-by-wave flow and surface elevation variations due to short waves in intermediate and shallow water depths. This is particularly important for application on gravel beaches, where due to steep slopes swash motion is mainly at incident wave frequencies, and infragravity wave motion, which dominates the inner surf and swash zone on sandy beaches during storms, is of secondary importance. To correctly account for upper swash infiltration losses and exfiltration effects on lower swash hydrodynamics on gravel beaches, XBeach-G computes groundwater dynamics and the exchange between groundwater and surface water using the XBeach groundwater model (gwflow=1). Again, interaction between swash flows and the beach groundwater table are considered particularly important on gravel beaches due to the relatively large hydraulic conductivity of the sediment, while on sandy beaches this process is of significantly less importance. Finally, gravel sediment transport processes have been included in XBeach-G to simulate the morphodynamics of gravel beaches during storms. These transport processes are currently under further development and validation.
Details of the XBeach-G model equations and validation can be found in the following publications (pending update):
XBeach-G is currently under development, therefore the results of model simuations should be considered with due care. In particular, the following aspects are important to note
The XBeach-G model and model GUI are available for download here. The original source code for the XBeach-G model can be found in the XBeach SVN directory, under tags/XBeach-G.