The marsh column model, developed by Simon M. Mudd.
Model has been used for these papers: M.L. Kirwan and S.M. Mudd (2012) Climate change impacts on carbon accumulation in salt marshes, Nature 489, 550-553, doi:10.1038/nature11440.
Mudd, S.M., Howell, S.M. and Morris, J.T. (2009), Impact of dynamic feedbacks between sedimentation, sea-level rise, and biomass production on near surface marsh stratigraphy and carbon accumulation, Estuarine Coastal and Shelf Science, 82(3): 377-389, doi:10.1016/j.ecss.2009.01.028.
At the moment this is just a transfer of the files; I've changed some file naming conventions so it needs some work!